Natrajan, R and Nirdosh, I (2006) A Comparative Study of Kinetics of Flotation of a Copper-Nickel Ore by N-Hydrocinnamoyl-N-Phenylhydroxylamine (HCNPHA) Vis-A-Vis Potassium Amyl Xanthate (PAX). In: Proceedings of the International Seminar on Mineral Processing Technology and Indo-Korean Workshop on Resource Recycling (MPT-2006), March 8-10, 2006, NML, Chennai.
Flotation kinetics was studied for the flotation of Canad-ian nickel ore using N-hydrocinnamoyl- N-phenyl-hydrox-ylamine (HCNPHA) as the collector. The differential flotation between pentlandite and pyrrhotite of HCNPHA was compared by repeating the experiments with potassium amyl xanthate (PAX). However, the pH for the flotation was 9.0 and 9.5, respectively, for using HCNPHA or PAX as collec-tor. Time-recovery plots were fit using the modified first order rate equation for flotation kinetics, namely, 12, = ev"), and flotation rate constant and the cumulative recovery at time infinite (R,) were computed. HCNPHA was found to react with pentlandite slightly faster than PAX. However, HCNPHA was found to float more pyrrhotite and silica than PAX thus the grade of the concentrates were adversely affected.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||Copper-Nickel Ore; Potassium Amyl Xanthate; Canadian nickel; pyrrhotite|
|Deposited By:||Sahu A K|
|Deposited On:||01 Dec 2012 12:27|
|Last Modified:||01 Dec 2012 12:27|
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