%0 Journal Article %T The Effect of Bubble Surface Area Flux on Flotation Efficiency of Pyrite Particles %J Iranian Journal of Chemistry and Chemical Engineering %I Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR %Z 1021-9986 %A Shahbazi, Behzad %A Rezai, Bahram %A Koleini, Sayed Mohammad Javad %A Noparast, Mohammad %D 2013 %\ 06/01/2013 %V 32 %N 2 %P 109-118 %! The Effect of Bubble Surface Area Flux on Flotation Efficiency of Pyrite Particles %K Flotation %K Pyrite %K Collision %K Attachment %K Detachment %R 10.30492/ijcce.2013.5895 %X In this research, the effect of bubble surface area flux, Sb, and particle size on flotation rate constant, k, of pyrite (FeS2) particles was studied using bubble-particle interactions. The bubble-particle collision, attachment and detachment efficiencies were calculated under different flow regimes. The k increased with increase in the collision efficiency and decrease in the detachment efficiency. Also the bubble-particle collection efficiency increased with increase in the Sb. Thus difficulty in the floating of fine particles was attributed to low efficiency of the bubble-particle collision efficiency while difficulty in the floating of coarse particles was due to high efficiency of bubble-particle detachment.  Maximum collision, attachment and detachment efficiencies were obtained as 81.57%, 50.60% and 51.89%, respectively. %U https://ijcce.ac.ir/article_5895_f9fd35cab9e769a60f7b7fa2f2f4c7c9.pdf