eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
1
10
10.30492/ijcce.2018.29140
29140
Preparation of Nano Spherical α-Fe2O3 Supported on 12-Tungstosilicic Acid Using Two Different Methods: A Novel Catalyst
Majid Saghi
m-saghi@iau-arak.ac.ir
1
Kazem Mahanpoor
k-mahanpoor@iau-arak.ac.ir
2
Hadi Shafiei
h-shafiee@iau-arak.ac.ir
3
Department of Chemistry, Arak Branch, Islamic Azad University, Arak, I.R. IRAN
Department of Chemistry, Arak Branch, Islamic Azad University, Arak, I.R. IRAN
Department of Chemistry, Arak Branch, Islamic Azad University, Arak, I.R. IRAN
In this research, spherical α-Fe2O3 nanoparticles (NPs) were supported on the surface of 12-tungstosilicic acid (12-TSA.7H2O) as a catalyst support, using two different Forced Hydrolysis and Reflux Condensation (FHRC) and Solid-State Dispersion (SSD) methods. α-Fe2O3 and 12-TSA.7H2O were synthesized due to previous reports. All products were characterized by using FT-IR, SEM, EDX, elemental map, XRD and BET surface area. The results indicated that the supported catalyst (α-Fe2O3/12-TSA.7H2O) successfully was prepared and no change was found on the chemical structures of 12-TSA.7H2O and α-Fe2O3. By using XRD analysis average sizes of spherical α-Fe2O3 NPs supported by SSD and FHRC methods were measured 50.5 and 70.82 nm, respectively. The catalyst presented in this study can be applied in the different areas such as nano photocatalytic reactions.
https://ijcce.ac.ir/article_29140_7595ad2b77fa8365d7f45fd2d1d9968f.pdf
FHRC
SSD
α-Fe2O3
12-tungstosilicic acid
α-Keggin
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
11
16
10.30492/ijcce.2018.31948
31948
Preparation and Characterization of ZnO Nanoparticles by Laser Ablation in NaOH Aqueous Solution
Ghaleb Al-Dahash
free2galib@yahoo.com
1
Wasen Mubder Khilkala
mubderz@yahoo.com
2
Sahib N. Abd Alwahid
sahib.alkulaibi@uokufa.edu.iq
3
Laser Physics Department, Babylon University, College of Science for Women, Hilla, IRAQ
Laser Physics Department, Babylon University, College of Science for Women, Hilla, IRAQ
Physics Department, University of Kufa, College of Education for Girl, Kufa,, IRAQ
In the recent years, laser ablation in liquid has become an increasingly important technique for the fabrication of NPs. this paper reports our recent studies on the generation of ZnO NPs by ablation of metal targets in aqueous environments using Q-switch Nd-YAG laser (λ=532nm) immersed in NaOH (0.1M). The Surface topography studied by atomic force microscopy revealed wider size distributions, with particle sizes (80.76 nm to 102.54nm )and shape were measured by using SEM shows spherical shape while the composing of the prepared nanoparticle were determined by X-ray, UV-Visible spectroscopy has been employed for the optical properties, the UV-VIS spectrum of the produced solution shows red shifted in the peak position with the laser ablation energy. The produced collide was a good stable.
https://ijcce.ac.ir/article_31948_33715b9adf70341944cab9e026fb006e.pdf
ZnO
laser ablation of metals in liquids
nanoparticles
plasmon resonance
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
17
28
10.30492/ijcce.2018.26374
26374
Fe3O4@Polydopamine Core-Shell Nanocomposite as a Sorbent for Efficient Removal of Rhodamine B from Aqueous Solutions: Kinetic and Equilibrium Studies
Ali Baghban
abaghban2@gmail.com
1
mohammad jabbari
mohammad_jabbari5724@yahoo.com
2
Elaheh Rahimpour
rahimpour_e@yahoo.com
3
Department of Chemistry, Faculty of Science, Payame Noor University, P.O. Box 19395-3697 Tehran, I.R. IRAN
Department of Chemistry, Faculty of Science, Payame Noor University, P.O. Box 19395-3697 Tehran, I.R. IRAN
Department of Chemistry, Faculty of Science, Payame Noor University, P.O. Box 19395-3697 Tehran, I.R. IRAN
In this work, a Fe3O4@polydopamine core-shell nanocomposite (Fe3O4/PDA) was synthesized through an in situ self-polymerization methods and was applied as a sorbent for Rhodamine B (RhB) removal. The synthetic procedure is simple and involves no organic solvents. The as-prepared Fe3O4/PDAnanocomposite was characterized by transmission electron microscope, Fourier transforms infrared spectra, and X-ray photoelectron spectroscopy. Due to the catechol and amine groups, the polydopamine (PDA) polymer provided multiple interactions in combination with RhB. The removal ratios of the RhB by Fe3O4/PDAwere all above 98% at the optimum experimental conditions, suggesting that the Fe3O4/PDAnanocomposite was an excellent sorbent for acid dyes removal from aqueous solution. The kinetic studies revealed that sorption follows a pseudo-second-order kinetic model which indicates chemisorption between sorbent and adsorbate molecules. The Langmuir adsorption models were applied to describe the equilibrium isotherms, and the isotherm constants were also determined. The maximum adsorption capacity derived from the Langmuir model was 195.3 mg/g.
https://ijcce.ac.ir/article_26374_1700ebb2440d5855d1cb3b586ab62214.pdf
Magnetic polydopamine nanocomposite
Core-shell
Absorbent
Rhodamine B.e B
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
29
37
10.30492/ijcce.2018.26595
26595
Green Removal of Toxic Pb(II) from Water by a Novel and Recyclable Ag/γ-Fe2O3@r-GO Nanocomposite
Bibi Narjes Haerizade
bnhaerizade@yahoo.com
1
Monireh Ghavami
ngh_nasim@yahoo.com
2
Maryam Koohi
mkouhi110@gmail.com
3
Simin Janitabar Darzi
siminjanitabar@yahoo.com
4
Nasibeh Rezaee
sdm_196@yahoo.com
5
Mohammad Zaman Kasaei
mz.kasaei@yahoo.com
6
Young Researchers and Elites Club, Qom Branch, Islamic Azad University, Qom, Iran
Industrial and Mechanical Engineering Department, Qazvin Branch, Islamic Azad University, P.O. Box 34185-1416 Qazvin, I.R. IRAN
Young Researchers and Elites Club, North Tehran Branch, Islamic Azad University, Tehran, Iran
Nuclear Science and Technology Research Institute, 11365-8486, Tehran, Iran
Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
Toxic leadions removed efficiently from water by a newly fabricated, magnetically recyclable, antibacterial nano-Ag/γ-Fe2O3@GOadsorbent, at ambient and teh physiological pH=7. Teh adsorption depends on teh adsorbent dosage, initial Pb(II)concentration, pH and teh contact time. Teh optimum removal efficiency of teh leadion is found to be 93.1% wif a dosage rate of 20 mg/L, in 40 minutes, at pH 5 (to 14). Equilibrium data fits well wif teh Langmuir and Freundlich models wif a maximum adsorption capacity of 90.91 mg/g of Pb(II) per 20 mg/L of Ag/γ-Fe2O3@GO. Teh removal/uptake mechanism involves interaction between Pb(II) and teh oxide/hydroxyl layer around Ag/γ-Fe2O3@rGO, in teh contaminated water medium.
https://ijcce.ac.ir/article_26595_a7765af64e037303c6f37f2bb53e90ba.pdf
Pb(II)
Ag/γ-Fe2O3@GO
adsorbent
Adsorption isotherms
Batch
Removal
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
39
45
10.30492/ijcce.2018.26372
26372
Adsorption of Phosphine on a BN Nanosurface
Sahar Mohajeri
sahar_mohajeri@yahoo.com
1
Maziar Noei
maziar.noei@hotmail.com
2
Ali Akbar Salari
alisalarichem@gmail.com
3
Zeynab Hoseini
s_majid_ha@yahoo.com
4
Nastaran Ahmadaghaei
nastaran_a_6060@ymail.com
5
Nazanin Molaei
bamaram_2013@yahoo.com
6
Department of Chemistry, Ardabil Branch, Islamic Azad University, Ardabil, Iran
Department of Chemistry, College of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran
Department of Chemistry, Yadegar-e-Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran
Department of Chemistry, College of Chemical Engineering, Mahshahr Branch,Islamic Azad University, Mahshahr, Iran
Department of Chemistry, College of chemistry, Yadegar-e-Imam Khomeini (RAH) Branch, Islamic Azad University, Tehran, Iran
Department of Chemistry, Omidiyeh Branch, Islamic Azad university, Omidiyeh , Iran
Electrical sensitivity of a Boron Nitride Nano Sheet (BNNS) to phosphine (PH3) molecule is studied using Density Functional Theory (DFT) calculations at the B3LYP/6-31G(d) level of theory. The adsorption energy (Ead) of phosphine on the surface of the pristine Nanosheet is about -678.96×1019eV. Pristine BNNS is a suitable adsorbent for phosphine and can be used in separation processes or adsorption of phosphine toxic gas from environmental systems. Consequently, BNNS is doped by Al atom and results show that the adsorption energy range is about - 28882.18×1019 to -52097.61×1019eV which means an increase in adsorption energy. Moreover, the HOMO/LUMO energy gap (Eg) reduces significantly. This reduction shows that the doped BNNS in the presence of phosphine is a suitable semiconductor and generates an electrical signal. Therefore, it can be used potentially as phosphine toxic gas detection sensors in environmental systems.
https://ijcce.ac.ir/article_26372_07cd9d7cbd9daad90e3022b5882405d9.pdf
sensor
Boron nitride Nanosheet
DFT
Phosphine
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
47
60
10.30492/ijcce.2018.31970
31970
Structural Modifications of Surfactant-Assisted Alumina and Their Effectiveness for the Removal of Dyes
Tahir Hajira
hajirat@uok.edu.pk
1
Mohammad Anas
muhammadanas_raza@yahoo.com
2
Alam Uroos
uroos04@hotmail.com
3
Bibi. Jamil. Rukhsana
rukhsanafarooqui@gmail.com
4
Qadri Masooda
5
Department of Chemistry, University of Karachi 75270, PAKISTAN
Department of Chemistry, University of Karachi 75270, PAKISTAN
Department of Chemistry, University of Karachi 75270, PAKISTAN
Department of Chemistry, University of Karachi 75270, PAKISTAN
Department of Chemistry, University of Karachi 75270, PAKISTAN
The current study focuses on the development of the modified surface of the alumina by anionic surfactant sodium dodecyl sulfate. The synthesized Surfactant Modified Alumina (SMA) effectively associated with dye molecules and amended their properties. The triphenylmethane (CBB) and thiazine dyes (MB) were selected as a simulated dye wastewater system. The removal was carried out by adsorption method under the optimized amount of adsorbent dosage, the concentration of adsorbate, contact time and temperature. The adsorption isotherm models like Langmuir, Freundlich and Dubinin Radushkevish were employed. The mechanism of the interaction represents the decolorized leuco dye molecules were formed after adsorption. Moreover, the thermodynamic parameters like (∆S°), (∆H°) and (∆G°) were calculated represents the endothermic and spontaneous nature of the adsorption process. The pH at the point of zero charges (pHPZC) was determined. The photocatalytic degradation of respective dye systems was also observed. The surface morphology of (SMA) was determined by FTIR and SEM techniques. Whereas the pseudo-second-order kinetics model was followed in the present system. The Pearson Correlation Coefficient was conjointly applied. The removal efficiency was ascertained to be 99.50% for CBB(R-250) and 95.70% for (MB).
https://ijcce.ac.ir/article_31970_171aa0c2d1141e9390beac06786895b6.pdf
Dyes
Adsorption
pHpzc
Thermodynamics
Kinetics
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
61
72
10.30492/ijcce.2018.31971
31971
Competitive Adsorption of Cu, Ni, Pb, and Cd from Aqueous Solution Onto Fly Ash-Based Linde F(K) Zeolite
Ting Cheng
wnchengting@sina.com
1
Chen Chen
chenc@just.edu.cn
2
Rong Tang
40008926@qq.com
3
Cheng-hui Han
hanch69@sina.com
4
Yuan Tian
1063894206@qq.com
5
Department of City Science, Jiangsu City Vocational College, Nanjing 210036, CHINA
Department of City Science, Jiangsu City Vocational College, Nanjing 210036, CHINA
Department of City Science, Jiangsu City Vocational College, Nanjing 210036, CHINA
Department of City Science, Jiangsu City Vocational College, Nanjing 210036, CHINA
School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, CHINA
The reaction of fly ash with a KOH solution was used to synthesize Linde F(K) zeolite, following which Fourier transform infrared spectroscopy were used to characterize the crystalline material. The competitive adsorption of Cu, Ni, Pb, and Cd onto this zeolite was subsequently studied in quaternary solution systems. The results show that the metal removal rates gradually increase with increases in the pH of the adsorption solution until reaching an asymptotic value. During the early stages of adsorption, the metal removal rate is very rapid, after which it gradually decreases. The overall adsorption efficiency order is Pb > Cd > Cu > Ni. The adsorption process is best represented by pseudo-second-order kinetics and an internal surface diffusion model. The primary adsorption process, which takes place between approximately 1 to 2 min and 40 min, appears to be controlled by internal surface diffusion.
https://ijcce.ac.ir/article_31971_e25cf575d60edbc02902f7aad53c6952.pdf
Heavy metal
Competitive adsorption
Zeolite
Fly ash
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
73
87
10.30492/ijcce.2018.29994
29994
Nickel (II) Adsorption from Aqueous Solutions by Physico-Chemically Modified Sewage Sludge
Omar Khelifi
khelifi_omar@yahoo.fr
1
Mouna Nacef
nacef2010@yahoo.fr
2
Abed M. Affoune
affoune2@yahoo.fr
3
Laboratoire d’Analyses Industrielles et Génie des Matériaux, Département de Génie des Procédés, Faculté des Sciences et de la Technologie, Université 8 Mai 1945 Guelma, BP 401 Guelma 24000, ALGERIA
Laboratoire d’Analyses Industrielles et Génie des Matériaux, Département de Génie des Procédés, Faculté des Sciences et de la Technologie, Université 8 Mai 1945 Guelma, BP 401 Guelma 24000, ALGERIA
Laboratoire d’Analyses Industrielles et Génie des Matériaux, Département de Génie des Procédés, Faculté des Sciences et de la Technologie, Université 8 Mai 1945 Guelma, BP 401 Guelma 24000, ALGERIA
This study assesses teh potential of activated carbon prepared from sewage sludge for nickel ions adsorption from aqueous solutions. Activated carbon physicochemical properties were determined. Batch adsorption experiments were performed as a function of pH solution, adsorbent dose, initial metal ions concentration, contact time and temperature. Teh experimental data were analyzed by teh Langmuir, Freundlich, and Temkin isotherm models. Teh Freundlich model showed a better representation of equilibrium data (R2>0.99) and teh Langmuir monolayer adsorption capacity of activated carbon was found to be 11.52 mg/g. Teh kinetics of nickel ions was discussed using different kinetic models and teh adsorption experiments indicated dat teh pseudo-second-order model well fitted teh kinetic data (R2=0.999). Thermodynamic parameters have also been evaluated. It was found dat teh adsorption process was feasible, spontaneous and endothermic. Desorption experiment and recovery of Ni(II) ions from activated carbon was found to be 100 % using hydrochloric acid. Teh results suggest dat teh activated carbon prepared from sewage sludge could be used beneficially for nickel adsorption from aqueous solutions for environmental cleaning purpose.
https://ijcce.ac.ir/article_29994_f1a98e86c7aa0f1e2626c5834915dfd2.pdf
Nickel(II) adsorption
Sewage sludge
equilibrium
Kinetics
Thermodynamics
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
89
97
10.30492/ijcce.2018.28571
28571
Spectrophotometric Determination of Formaldehyde in Seawater Samples after In-situ Derivatization and Dispersive Liquid-Liquid Microextraction
Mahmoud Nassiri
mdnassiri@yahoo.com
1
Massoud Kaykhaii
kaykhaii@gmail.com
2
Sayyed Hossein Hashemi
h.hashemi@cmu.ac.ir
3
Massoud Sepahi
sephaimasoud@yahoo.com
4
Department of Marine Chemistry, Faculty of Marine Science, Chabahar Maritime University, Chabahar, I.R. IRAN
Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan, I.R. IRAN
Department of Marine Chemistry, Faculty of Marine Science, Chabahar Maritime University, P.O. Box 98617-85553 Chabahar, I.R. IRAN
Department of Marine Chemistry, Faculty of Marine Science, Chabahar Maritime University, Chabahar, I.R. IRAN
In this paper, a simple dispersive liquid-liquid microextraction for the extraction and pre-concentration of formaldehyde in seawater samples followed with spectrophotometric is proposed. Formaldehyde was derivatized in situ with acetyl acetone in the presence of ammonium acetate in a single step. Then it was collected into a mixture of ethanol (disperser solvent) and chloroform (extracting solvent). Experimental parameters which have an influence on the extraction, including type and volume of extracting and disperser solvent, pH of sample solution, the concentration of acetyl acetone and ammonium acetate, reaction time and temperature were evaluated and optimized. Under optimal experimental conditions, good linearity was observedin the range of 1-500 µg/Lfor the analyte with a limit of detection of 0.29 µg/L. The proposed method was applied to the analysis of real seawater samples. For spiked samples, good recoveries in the range of 97.7-101.5% were obtained. The relative standard deviations were below 2.1%. Using this method, formaldehyde content in seawater from several locations in Chabahar Bay (southeast Iran) were determined in the range of 1.4 to 4.8 µg/L.
https://ijcce.ac.ir/article_28571_4426f42e4d9c9eb8316ebc832905181e.pdf
Formaldehyde
Seawater
Acetyl acetone
dispersive liquid-liquid microextraction
Chabahar Bay
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
99
108
10.30492/ijcce.2018.26369
26369
Comparison of Two Liquid-Liquid Microextractions for the Detection of Crocin in the Saffron and Biological Samples Using UV- Vis Spectrophotometry
Somayeh Heydari
so_heydari_83@yahoo.com
1
Department of Chemistry, University of Torbat-e Jam, Torbat-e Jam, I.R. IRAN
In this work, two approaches based on Dispersive Liquid-Liquid MicroExtraction (DLLME) and Dispersive Liquid-Liquid MicroExtraction based on Solidification of Floating Organic Drop (DLLME-SFO) were compared for the extraction and preconcentration of crocin from saffron and biological samples. Different DLLME and DLLME-SFO parameters influencing the extraction efficiency were studied and optimized. The results showed that both extraction methods exhibited good linearity, precision, enrichment factor, and detection limit. Under optimal conditions, the limits of detection were 0.008 and 0.005 ng/mL for DLLME and DLLME-SFO, respectively. The preconcentration factors were 88 and 95 for DLLME and DLLME-SFO, respectively. The applicability of the proposed methods was examined by analyzing crocin in saffron, urine and milk samples and good results were obtained. The percentage recovery values for spiked samples were between 96.4 and 99.1.
https://ijcce.ac.ir/article_26369_6adfcb693164b36dc860c17c6903cd4b.pdf
dispersive liquid-liquid microextraction
Dispersive liquid-liquid microextraction based on solidification of floating organic drop
Crocin
Saffron
Biological samples
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
109
119
10.30492/ijcce.2018.31972
31972
Effect of Ultrasonic Extraction Regimes on Phenolics and Antioxidant Attributes of Rice (oryza sativa L.) Cultivars
Muhammad Zubair
muhammad.zubair@uog.edu.pk
1
Farooq Anwar
qfanwar@yahoo.com
2
Muhammad Nadeem Zafar
znadeempk@yahoo.com
3
Muhammad Faizan Nazar
fazan.nazar@uog.edu.pk
4
Abdullah Ijaz Hussain
abdullahijaz@gmail.com
5
Ehsan Ullah Mughal
ehsanmughal@gmail.com
6
Department of Chemistry, University of Gujrat, PAKISTAN
Department of Chemistry, University of Sargodha, Sargodha, PAKISTAN
Department of Chemistry, University of Gujrat, PAKISTAN
Department of Chemistry, University of Gujrat, PAKISTAN
Department of Chemistry, Govt. College University Faisalabad, PAKISTAN
Department of Chemistry, University of Gujrat, PAKISTAN
Teh ultrasound-assisted magnetic stirrer was used as an effective extraction technique for teh evaluation of total phenolic contents (TPC) and antioxidant potential of ten Pakistani brown rice cultivars. For this purpose, ultrasonic (240W frequency 50/60 Hertz) assisted magnetic stirrer coupled with three solvents methanol, ethanol, and isopropanol in pure and aqueous fractions (80:20) were used for teh extraction of brown rice material. Teh extract yields of brown rice were obtained from 1.62 g/100g to 3.67 g/100g for all teh varieties. Aqueous isopropanol preferably and methanol (80:20) showed best extraction yields on teh dry mass basis of brown rice. Teh contents of total phenolics were determined as highest (496.9 mg GAE/kg) in Basmati Pak while lowest (137.7 mg GAE /kg) in non-basmati Irri-6 variety. For antioxidant activity, brown rice extracts of Basmati Pak showed teh best potential at IC50 2.19 mg/mL against DPPH radical scavenging. Reducing teh power of Basmati Pak was found highest at 0.85. Brown rice extract of Basmati 515 showed best ferrous ion metal chelation at 5.78 Eq. EDTA mg/100g.
https://ijcce.ac.ir/article_31972_502fee9a7b149dbe07b3ba283d761286.pdf
Basmati
Extraction
Antioxidant
Phenolics
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
121
129
10.30492/ijcce.2018.26370
26370
Optimization of the Glycyrrhizic Acid Extraction from Licorice by Response Surface Methodology
Masoumeh Khanahmadi
chem_khanahmadi@yahoo.com
1
Reza Ghaffarzadegan
reza.ghafary@yahoo.com
2
Farahnaz Khalighi-Sigaroodi
khalighi@imp.ac.ir
3
Hassanali Naghdi Badi
naghdibadi@yahoo.com
4
Ali Mehrafarin
a.mehrafarin@gmail.com
5
Reza Hajiaghaee
rhajiaghaee@yahoo.com
6
Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, I.R. IRAN
Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, I.R. IRAN
Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, I.R. IRAN
Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, I.R. IRAN
Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, I.R. IRAN
Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, I.R. IRAN
This study aims to extract Glycyrrhizic Acid (GA) from Glycyrrhiza glabra L. (licorice) using a novel, high efficiency, and low-cost extraction method. Water was chosen as the proper solvent for the extraction process to eliminate the requirement of harmful and toxic solvents, prepare an environmentally friendly process, and reduce the costs. The effect of different process variables (extraction time, feed to solvent ratio, pH of extraction medium, and temperature) on the extraction, yield was investigated experimentally and statistical analysis using the RSM method was performed to analyze the effect of variables and obtain a proper model correlating the yield of extraction to variables. The obtained model was found successful in fitting the experimental results. It was found that all the four variables affect the yield of extraction significantly, and only the interaction between pH and extraction time was found important in increasing the GA% in the precipitate. The highest yield was achieved experimentally 54.9%, for the case with the extraction time of 17 h, feed to solvent ratio of 10 g/ml, pH of 10, and temperature of 60ºC.On the other hand, the optimum condition obtained by the model was found at extraction time of 10.12 h, feed to solvent ratio of 10.71 g/ml, pH of 9.8, and temperature of 119.7ºC.
https://ijcce.ac.ir/article_26370_c220c1bad29df752b5e99053656a2852.pdf
Glycyrrhiza glabra L
Glycyrrhizic Acid
Licorice
Response Surface Method (RSM)
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
131
139
10.30492/ijcce.2018.30432
30432
Preliminary Experimental Analysis of Alcohol-Kerosene Blend for Commercial Aviation
Miras Turysbay
turysbay@icloud.com
1
Dana-Cristina Toncu
dctoncu@gmail.com
2
School of Chemical Engineering Kazakh-British Technical University59 Tole-bi, Almaty, 050000 KAZAKHSTAN
School of Chemical Engineering Kazakh-British Technical University59 Tole-bi, Almaty, 050000 KAZAKHSTAN
Teh aim of dis work is to provide insight into alcohol-kerosene fuels and their promising use as an alternative in commercial aviation. A detailed chemical and physical experimental analysis is drawn, wif a focus on teh advantage of teh isopropanol-kerosene blend. Despite reported beneficial isopropanol effects on retarding fuel combustion, knocking prevention, and much lower emissions, few investigations managed to offer clear prospects for such an alternative commercial aviation fuel. Teh ease of mixing wif kerosene and teh advantage of improved freezing points overcome negative effects of volatility and corrosion for low isopropanol percentage and makes it a strong candidate for alternative jet fuels.
https://ijcce.ac.ir/article_30432_56610b93a8916872826094ed636b0489.pdf
Isopropanol
Kerosene
Aviation
Alternative
experiment
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
141
147
10.30492/ijcce.2018.26649
26649
Effects of Cooking Methods on the Concentrations of Lead, Chromium, and Cadmium in Whitefish (Rutilus frissi kutum) from the Caspian Sea, Iran
Seyedeh Zahra Mehdipour
sz.nmehdipour@yahoo.com
1
Mohammad Shokrzadeh
mslamuk@yahoo.com
2
Saeid Khanzadi
khanzadi@um.ac.ir
3
Davar Shahsavani
davar@um.ac.ir
4
Department of Food Hygiene and Aquaculture, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, I.R. IRAN
Department of Toxicology, Faculty of Pharmacy, Mazandaran Pharmaceutical Sciences Research Center, Mazandaran University of Medical Sciences, Sari, I.R. IRAN
Department of Food Hygiene and Aquaculture, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, I.R. IRAN
Department of Food Hygiene and Aquaculture, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, I.R. IRAN
Today seafood plays a significant role in feeding people worldwide. Identification nutritional value of these products over other protein intake is increasing day by day. In parallel wif the increase in fish consumption, assessment of hygiene and health of these products is important. In this study, Heavy metals (Pb, Cr, and Cd) were investigated in white fish (Rutilus frissi kutum) from the Caspian Sea in Mazandaran province. Different food treatments were used (frying, salting, grilling, microwaving, boiling and steaming). The results obtained were statistically compared wif those of raw fish. An ANOVA test was used to compare the mean metal concentrations between and wifin groups. The results indicated dat the heavy metal content in white fish decreased on various cooking methods. Concentrations of grilled, microwaved and boiled fish were considerably decreased.
https://ijcce.ac.ir/article_26649_8d461fb624ad4d4a24b6d0cece5b0eec.pdf
Whitefish
heavy metals
Atomic absorption spectrometry
Cooking methods
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
149
157
10.30492/ijcce.2018.27255
27255
An Efficient Synthesis of 4H-chromene Derivatives by a One-pot, Three-component Reaction
Ahmad Poursattar Marjani
a.poursattar@gmail.com
1
Bahman Ebrahimi Saatluo
ebrahimisaatlo@gmail.com
2
Fariba Nouri
nouri.f933@yahoo.com
3
Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, I.R. IRAN
Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, I.R. IRAN
Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, I.R. IRAN
A facile and efficient one-pot, multicomponent synthesis of 4H-chromenes is reported, through the reaction of arylglyoxalmonohydrates with 1,3-diketones and malononitrile in eTEMPthanol in the presence of L-proline as a catalyst.
https://ijcce.ac.ir/article_27255_87223f9b46faab4eadef0b3a653803ef.pdf
Arylglyoxal monohydrates
One-pot reaction
4H-chromenes
L-proline
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
159
167
10.30492/ijcce.2018.26367
26367
Facile and Rapid Synthesis of 3,4-Dihydropyrimidin-2(1H)-one Derivatives Using [Et3NH][HSO4] as Environmentally Benign and Green Catalyst
Behjat Pouramiri
b.pouramiri.chem@gmail.com
1
Raziye Fayazi
rfayazi@gmail.com
2
Esmat Tavakolinejad Kermani
etavakoly@yahoo.com
3
Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169, I.R. IRAN
Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169, I.R. IRAN
Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169, I.R. IRAN
5-acetyl-6-methyl-4-aryl-3,4-dihydropyrimidin-2(1H)-ones were synthesized in good to excellent by one-pot three-component Biginelli condensation in the presence of ammonium salt [Et3NH][HSO4] as an inexpensive and green catalyst under solvent-free conditions. High yields, short reaction time, easy work-up, a green environment which requires no toxic organic solvents and reusability of the catalyst are the advantages of this procedure. A broad range of structurally diverse aldehydes (aromatic aldehydes bearing electron withdrawing and electron releasing groups) was applied successfully, and corresponding products were obtained in good to excellent yields without any by-product. In addition, this catalyst was stable during the reaction process and could also be reused several times with consistent activity.
https://ijcce.ac.ir/article_26367_686a10e47412ac46344da3f0bb66b943.pdf
Biginelli reaction
3,4-Dihydropyrimidin-2(1H)-one
Triethylammonium hydrogen sulfate
Ionic liquid
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
169
173
10.30492/ijcce.2018.31973
31973
DFT Study on the Possible Intramolecular Rearrangement of Four Monocyclic Monoterpenes
Li He
lh_biology2@126.com
1
Wang Dong
wd_biology2@126.com
2
Wang Chuanming
wangcm@ynu.edu.cn
3
Key Laboratory of Crops with High Quality and Efficient Cultivation and Security Control, Yunnan Higher Education Institutions, Honghe University, Mengzi 661199, CHINA
Key Laboratory of Crops with High Quality and Efficient Cultivation and Security Control, Yunnan Higher Education Institutions, Honghe University, Mengzi 661199, CHINA
Key Laboratory of Crops with High Quality and Efficient Cultivation and Security Control, Yunnan Higher Education Institutions, Honghe University, Mengzi 661199, CHINA
As the basis and preliminary work of future experimental study on PAHs formation under high temperature, theoretical computations on the intramolecular rearrangement reactions of sylvestrene (1-methyl-3-vinylcyclohexene) and 1,4-dimethyl-4-vinylcyclohexene are conducted and reveal that they may be transformed to themselves. The conversion between Dipentene and 2,4-dimethyl-4-vinylcyclohexene is also predicted. All the reactions proceed along concerted paths through a single cis-endo transition state with relatively high energy barrier (~200 kJ/mol) and presumably occur when alkenes burn. These possible Cope rearrangement reactions have some characters of stepwise Diels-Alder cycloadditions during which diene and dienophile are replaced by each other and may suggest the complexity of cyclic hydrocarbons formation.
https://ijcce.ac.ir/article_31973_4c7a470a5bb22b5da2083ba284324ad2.pdf
Cope rearrangement
Diels-Alder reaction
Monocyclic monoterpenes
Intramolecular cyclizationyclization
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
175
183
10.30492/ijcce.2018.29965
29965
The Effect of Structural Parameters on the Cross-Linking of Various Grades of LLDPE
Mahmoud Reza Hojjati
hojjatimr@gmail.com
1
Shadi Bassanajili
ajili@shirazu.ac.ir
2
Ashkan Forootan
a.forootan@yahoo.com
3
Department of Chemical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, I.R. IRAN
Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, I.R. IRAN
Jam Petrochemical Company, Pars Special Economic Energy Zone (Assaluyeh), I.R. IRAN
Polyethylene’s application for insulating is highly advanced but due to thermoplastic properties, its application confronts constraints such as the limited 70°C temperature of the conductor. Polyethylene thermosetting procedure in which molecules are knotted and a 3D-molecular-network formed is developed to conquer the mentioned problem and to raise the applicable temperature of the insulation. This paper reports the cross-linking of two cable grades of LLDPE by using DCP (Dicumyl Peroxide). DCP was chosen for its prevalence among various cross-linking agents. Structural parameters like molecular weight, melt flow index, viscosity and number of branches were obtained using relative tests as Gel Permeation Chromatography (GPC),Rheometry and Fourier Transform-InfraRed (FT-IR) spectrometer. After calculating the percentage of gel content, properties of the pure and cross-linked samples were compared by thermal and mechanical analysis with DSC, TGA, and DMTA. The effects of cross-linking like melting and decomposition temperatures, crystal formation, viscous and elastic modulus were discussed by using various structural parameters such as MFI, molecular weight, short chain branches. Studies declared that cross-linked polymer, unlike the pure one, had a solid state with thermal mechanical properties in the range of 110 to 120°C, so this assist overcomes the problem of using polyethylene in temperatures around the melting point.
https://ijcce.ac.ir/article_29965_5fd54804ed2c9385bc5619512d5330da.pdf
LLDPE
Cross-link
Structural parameters
DCP
DSC
DMTA
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
185
192
10.30492/ijcce.2018.26373
26373
Synthesis and Characterization of Sunflower Oil-Based Polysulfide Polymer/Cloisite 30B Nanocomposites
Samira Moqadam
s_moqadam@sut.ac.ir
1
Mehdi Salami Kalajahi
m.salami@sut.ac.ir
2
Mohammad Mahdavian
mahdavian-m@icrc.ac.ir
3
Department of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, I.R. IRAN
Department of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, I.R. IRAN
Department of Surface Coating and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, I.R. IRAN
In current work, halogenated sunflower oil was reacted with Na2S3 to produce sunflower oil-based polysulfide polymer. Cloisite 30B as organomodified nanoclay was used in different contents to investigate its effect on the properties of the synthesized polymer. All nanocomposites were prepared via in situ polymerization method in aqueous media. Fourier Transform-InfraRed (FT-IR) spectroscopy revealed the inclusion of nanoclay in a polymeric matrix.X-Ray Diffraction (XRD) and Transmission Electron Microscopy (TEM) were used to study the degree of intercalation/exfoliation of nanoplatelets in matrices. Proton Nuclear Magnetic Resonance (1H NMR) was utilized to study the molecular weight of synthesized polymers. Thermal stability of nanocomposites was determined by means of Thermal Gravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) was used to investigate thermophysical properties. According to results, nanocomposite with 1 wt. % of Cloisite 30B showed an exfoliated morphology whereas the higher amount of nanoclay resulted in intercalated nanoplatelets with different degrees of intercalation. Also, adding more Cloisite 30B nanoplatelets led to more decrease in molecular weight. After the introduction of nanoclay into nanocomposites structure and increasing its content, the thermal stability of nanocomposites was improved whereas no significant improvement of thermal stability was observed by increasing clay content from 3 to 5 wt. %. Also, all samples showed only the glass transition temperature (Tg) and no distinct peak related to melting was observed. Adding more nanoclay resulted in higher Tg value due to the confinement effect of nanoplatelets.
https://ijcce.ac.ir/article_26373_c6f99212bf4f74c671e330ba9c8dbf16.pdf
Polysulfide polymer
Sunflower oil
Nanocomposites
Cloisite 30B
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
193
204
10.30492/ijcce.2018.30883
30883
Study on the Thermal Decomposition Kinetics and Calculation of Activation Energy of Degradation of Poly(o-toluidine) Using Thermogravimetric Analysis
Hajera Gul
hajeragul11@yahoo.com
1
Anwar-ul-Haq Ali Shah
anwarulhaqalishah@upesh.edu.pk
2
Salma Gul
salma230@yahoo.com
3
Jalal Arjomandi
j_arjomandi@yahoo.com
4
Salma Bilal
dresalmabilal@gmail.com
5
National Center of Excellence in Physical Chemistry, University of Peshawar, 25120 Peshawar, PAKISTAN
Institute of Chemical Sciences, University of Peshawar, 25120 Peshawar, PAKISTAN
National Center of Excellence in Physical Chemistry, University of Peshawar, 25120 Peshawar, PAKISTAN
Department of Physical Chemistry, Faculty of Chemistry, Bu-Ali Sina University,65178 Hamedan, I.R. IRAN
National Center of Excellence in Physical Chemistry, University of Peshawar, 25120 Peshawar, PAKISTAN
Thermo Gravimetric Analysis (TGA) analysis was employed to investigate activation energy (Ea) for the process of degrading of poly(o-toluidine) (POT) applying Horwitz & Metzger, Coats & Redfern and Chan et al., methods. POT was synthesized by chemical oxidative polymerization method using Ammonium per Sulphate (APS) as an oxidant while Dodecylbenzene Sulphonic Acid (DBSA) and sulfuric acid as co-dopants. Different samples, synthesized by variations in the reactions parameters, were evaluated in order to choose the one with the highest activation energy of degradation. Additional characterization of the polymer was carried out through different techniques such as Scanning Electron Microscopy (SEM), UltraViolet Visible spectroscopy (UV-Vis) and X-Ray Diffraction (XRD) analysis.
https://ijcce.ac.ir/article_30883_e381898dbc7b5966c0fb1c73e9bf4e3c.pdf
POT
TGA
XRD
SEM
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
205
212
10.30492/ijcce.2018.31981
31981
Investigation of Leaching Kinetics of Smithsonite Ore
Oral Laçin
olacin@atauni.edu.tr
1
Bunyamin Dönmez
bdonmez@atauni.edu.tr
2
Feride Ebru Eti
feride@atauni.edu.tr
3
Department of Chemical Engineering, Atatürk Üniversity, 25240 Erzurum, TURKEY
Department of Chemical Engineering, Atatürk Üniversity, 25240 Erzurum, TURKEY
Department of Chemical Engineering, Atatürk Üniversity, 25240 Erzurum, TURKEY
The leaching kinetics of smithsonite ore in acetic acid solutions, an environmental friend, and natural reagent was investigated. The influence of parameters such as reaction temperature, particle size, solid-liquid ratio and acid concentration was studied in order to reveal the leaching kinetics of smithsonite ore. In this study, experimental and statistical methods were carried out in order to analyze the kinetics data to investigate a kinetics model which describes the dissolution. The results indicate that the unreacted shrinking core model for fluid-solid heterogeneous reactions was favorable for the leaching process. The apparent activation energy of the leaching process was found as 74 kJ/ mol. It was determined that the leaching rate of smithsonite was controlled by the chemical reaction below.
https://ijcce.ac.ir/article_31981_a2bf5070d2744316573bdcd8cc744ccc.pdf
Smithsonite ore
Leaching
Reaction kinetics
Acetic acid
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
213
221
10.30492/ijcce.2018.30706
30706
Antifungal Activity of Natural Dye from Aerial Biomass of Barleria prionitisL. and Dyed Fabrics
Anita Pal
1
Rakesh Kumar
2
Lokesh Upadhyay
3
Y Tripathi
tripathiyc@gmail.com
4
Chemistry Division, Forest Research Institute, PO New Forest, Dehradun-248006, INDIA
Chemistry Division, Forest Research Institute, PO New Forest, Dehradun-248006, INDIA
Centre for Interdisciplinary Biomedical Research, Adesh University, Bathinda-151009, Punjab, INDIA
Chemistry Division, Forest Research Institute, PO New Forest, Dehradun-248006, INDIA
Natural dye extracted from aerial parts of Barleria prionitis and different kinds of textile fabrics dyed with the natural dye were investigated for their antifungal activity. Antifungal activity of natural dye and dyed fabrics was assessed against standard strains of five fungi namely Aspergillus flavus, A. niger, A. parasiticus, Fusarium moniliforme and Penicillium canescens using agar-well diffusion method. The MIC was determined by the broth dilution method. Further, the antifungal potency of dyed fabrics (silk, wool, and cotton) against the test fungi was quantitatively evaluated by the reported method. Different treatment doses of natural dye exhibited a varying degree of antifungal activity against the five test fungi. The highest growth reduction in all the test fungi, however, was recorded with 500 mg/ml concentration of natural dye. The antifungal activity at this concentration is found almost at par with the positive control. The Minimum Inhibitory Concentrations (MICs) of natural dye against test fungi were ranged within, 22.50-23.50 mg/mL. Dyed silk, wool, and cotton fabrics also showed remarkable antifungal efficacy against all the test fungi. Dyed silk fabrics exhibited the maximum growth reduction followed by wool and cotton. The study revealed the remarkable antifungal activity of natural dye from B. prionitis aerial biomass and dyed fabrics. Therefore, B. prionitis can be considered as a potential source of natural dye with functional properties and can be used in the protective finishing of different kinds of textile fabrics.
https://ijcce.ac.ir/article_30706_64eefa2547f630e7b4eea9c2b5bdce26.pdf
Barleria prionitis
Aerial biomass
Natural Dye
Dyed Fabrics
Antifungal activity
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
223
230
10.30492/ijcce.2018.26238
26238
Reduction of CO2 Emission and Production Costs by Using Pozzolans in Lamerd Cement Factory
Sohrab Abdollahi
sohrab202020@yahoo.com
1
Zohreh Zarei
zarei.zohreh93@gmail.com
2
Department of Chemistry, Payame Noor University, I.R. IRAN
Department of Chemistry, Payame Noor University, I.R. IRAN
Two major concerns for cement factories are environmental aspects and production costs. The number of cement factories is increasing in Iran which from an environmental point of view is not favorable. Different pozzolans such as brick, potted clay, volcanic rocks, sedimentary rocks and rice bran were used in the cement produced by Lamerd factory in the south of Iran. Among these additives, rice bran fails to be proper pozzolan. This research shows that using pozzolans up to 10% does not have a significant effect on the quality of Lamerd cement. Almost the similar textures of compositions for differently mixed types of cement were determined using XRD and XRF experiments. Considering these additives, volcanic and sedimentary rocks seem to be more favorable regarding both quality and price. In fact, the additives can reduce both the emission of CO2 (reduction of more than around 400 tons CO2 per day) and the production costs (the money saved is around $76000 per day) in cement factory of Lamerd.
https://ijcce.ac.ir/article_26238_3fcaeef7eda13e0966f7902fd9ee52dc.pdf
Pozzolans
Cement
Carbone emission
Additives
Air pollution
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
231
240
10.30492/ijcce.2018.26024
26024
Distinguishing Anhydrate and Gypsum Scale in Mixing Incompatible Surface and Ground Waters During Water Injection Process
Meisam Kamalipour
kamalipourm@ripi.ir
1
Seyyed Ali AliMousavi Dehghani
mousavisa@ripi.ir
2
Ali Naseri
naseria@ripi.ir
3
Saeed Abbasi
abbasis@ripi.ir
4
Iranian Central Oil Field Company, Tehran, I.R. IRAN
Research Institute of Petroleum Industry, Tehran, I.R. IRAN
Research Institute of Petroleum Industry, Tehran, I.R. IRAN
Research Institute of Petroleum Industry, Tehran, I.R. IRAN
Determination of the type of precipitated calcium sulfate in mixing two incompatible injection and formation waters was studied experimentally in this work at two temperatures of 26oC and 80oC. Here the SEM, EDX and XRD techniques have been used to inspect the temperature effects on the morphology, type, and size of the precipitated calcium sulfate crystals. The results of this work show that the precipitated scales at these temperatures are calcium sulfate dihydrate and the temperature influences the size of crystals dramatically. The crystallization mechanism is the next issue which has been studied in this work. Measuring the amount of precipitated scale in the mixing of the incompatible waters versus time depicts the scale formation controlling mechanisms. According to the obtained results in this work, three primary nucleations, crystal growth, and secondary nucleation control the calcium sulfate scale precipitation.
https://ijcce.ac.ir/article_26024_ee8eaa036a312cea26fcec28ab23cdbb.pdf
scale
Incompatible water
Nucleation
Crystallization
Calcium sulfate anhydrate
Gypsumum
eng
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Iranian Journal of Chemistry and Chemical Engineering
1021-9986
2018-02-01
37
1
241
247
10.30492/ijcce.2018.31982
31982
The Concentration’s Influence of the Abrasive Granules Particles on the Vibratory Finishing Optimization
Youcef Rouabhi
youcefrouabhi7@gmail.com
1
Azzedine Lounis
zlounis@yahoo.com
2
Department of Mechanical & Industrial Engineering, University Mohamed Boudiaf, M’sila, ALGERIA
Department of Science & Material Engineering, University of Science Technological Houari Boumediene USTHB, Algiers, ALGERIA
The already initiated studies are based on size and forms of abrasive grains, but few studies have addressed the influence on the concentration of abrasive grains. This research has been done to remove some of the mysteries associated in the media "abrasives" or "chips" used in vibratory and barrel finishing, this process included within the functions and characteristics of media, its types and shapes, also the selection of the best grade for a given task. The present work provides guidance on the influence on the concentration of the particles (grain) of abrasive granules with the main parameters and technological indices of vibratory finishing treatment,in order to optimize abrasive granules and increase the productivity of the vibratory finishing taking into account media, which has certain characteristics, make it unique in its capabilities.
https://ijcce.ac.ir/article_31982_46b3acb8969432b2be888fa1d1b27dad.pdf
Particle
Concentration
Abrasive granules
Vibratory finishing