Sub-Atmospheric Distillation for Water (1) + Dimethyl Amino Ethyl Azide (2) Mixture

Document Type : Research Note

Authors

Faculty of Chemistry and Chemical Engineering, Malek Ashtar University of Technology, Tehran, I.R. IRAN

Abstract

Dimethyl amino ethyl azide (DMAZ) is a good replacement for hydrazine group in space programs. This chemical was purified from water (1) + DMAZ (2) mixture in sub-atmospheric distillation column due to thermal sensitivity of DMAZ. For designing of the column, it is necessary to have vapor-liquid equilibrium data. In this article, T-x,y and y-x diagrams were obtained under 40 mbar pressure. Results showed that there exists an azeotrope in the mixture of water (1) + DMAZ (2). Experiments were conducted at different vapor flow rates in the batch distillation column to determine the time necessary for purification of DMAZ. Comparing the experimental results for the distillation time with the theoretical results presented an error time of about 2.6%.

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References

[1] Schmidt E. W., "Hydrazine and Its Derivatives", John Wiley and Sons, New York (2001).
[2] Agrawal J. P., "High Energy Materials: Propellants, Explosives and Pyrotechnics", Wiley-VCH, Weinheim (2010).
[3] Reddy G., Song J., Mecchi M. S., Johnson M. S., Genotoxicity Assessment of Two Hypergolic Energetic Propellant Compounds, Mutat. Res.-Gen. Tox. En., 700(1-2): 26-31 (2010).
[4] Thompson D., Tertiary Amine Azides in Hypergolic Liquid or Gel Fuels Propellant System, US Patent 6013143 (2000).
[5] Schiemenz P., Engelhard H., Trimethoxyphenyl Derivatives. I. Synthesis of Amines via Mixed Anhydrides, Chem. Ber., 92: 857-862 (1959).
[6] Jafarikhah K., "Study on Effective Parameters in Production of DMAZ in Bench Scale and Optimizing Them", MSc Thesis, Malek Ashtar University of Technology, Tehran, Iran
(2011).
[7] Darvich M.R., Olyai A., Shabanikia A., Farkhani D., Reaction of Sodium Azide with 1,1'–Dicyclohexenyl–Diepoxides, Iran. J. Chem. Chem. Eng. (IJCCE), 22(2):49-53 (2003).
[8] Rouhandeh H., Study on Effective Parameters on Purification of DMAZ in a Proper Method and Design of the Unit in Pilot Plant", MSc Thesis,Malek Ashtar University of Technology, Tehran, Iran (2011).
[9] Aucejo A., Loras S., Martinez-Soria V., Becht N., Rio G.D., Isobaric Vapor−Liquid Equilibria for the Binary Mixtures of Styrene with Ethylbenzene, o-Xylene, m-Xylene, and p-Xylene, J. Chem. Eng. Data, 51(3): 1051–1055 (2006).
[10] Lotfollahi M.N., Modarress H., Khodakarami B., VLE Predictions of Strongly Non-Ideal Binary Mixtures by Modifying Van Der Waals and Orbey-Sandler Mixing Rules, Iran. J. Chem. Chem. Eng. (IJCCE), 26(3):73-80 (2007).
[11] Pahlevanzadeh H., Ahooei A.M., Estimation of UNIQUAC-NRF Model Parameters for NH3-CO2-H2O System, Iran. J. Chem. Chem. Eng. (IJCCE), 24(1): 21-26 (2005).
[12] Asadi S., Multicomponent Distillation Modeling of an Essential Oil by the SRK and PSRK State Equations, Iran. J. Chem. Chem. Eng. (IJCCE), 33(3):77-82 (2014).
[13] Ehsani M.R., Prediction of the Operating Conditions in a Batch Distillation Column Using A Shortcut Method, Iran. J. Chem. Chem. Eng. (IJCCE), 21(2):118-125 (2002).
[14] Narvaez-Garcia A., del Carmen Zavala-Loria J., Enrique Vilchis-Bravo L., Antonio Rocha-Uribe J., Design of Batch Distillation Columns Using Short-Cut Method at Constant Reflux, J. Eng., 14: 2013-2027 (2013).
[15] Diwekar U.M., "Batch Distillation, Simulation, Optimal Design and Control", CRC Press, New York (2012).
[16] Jain S., Kim J.K., Smith R., Operational Optimization of Batch Distillation Systems, Ind. Eng. Chem. Res., 51(16): 5749–5761(2012).
[17] Barrera R., Villa A. L., Montes de Correa C., Ricardez-Sandoval L., Elkamel A., Dynamic Modeling and Optimization of A Batch Reactor for Limonene Epoxidation, Ind. Eng. Chem. Res., 49(18): 8369-8378 (2010).
[18] Fanaei Shykholeslami M.A., Dehghani H., Nadi S., Comparing and Controlling of Three Batch Distillation Column Configurations for Separating Tertiary Azeotropic Mixtures, Scientia Iranica, 19(6): 1672-1681 (2012).
[19] Meyers C.J., Kosowski B.M., Dimethylamino Ethylazide: A Replacement of Hydrazine Derivatives in Hypergolic Fuel Applications, "International Annual Conference of ICT", Fraunhofer, Germany, pp:1-4 (2003).
[20] Perry R. H., Green D., "Perry’s Chemical Engineers, Handbook", 7th ed., McGraw-Hill Inc., New York (1997).
[21] Petek S.A., Bradesko L., Zilnik L.F., Zupancic S., Distillation of Water-N-Methylimidazole System, Acta Chim. Slov., 48: 515-520 (2001).
[21] Coward I., The time-optimal problem in binary batch distillation, Chem. Eng. Sci., 22(4): 503-516 (1967).

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