Authors:Â A.V.L.N.S.H. Hariharan, K. C. Purnima
Abstract:Â Leaching of chromium from ferrochrome slag (Kothavalasa) using hydrochloric and nitric acid media was attempted. Rate of leaching in both acids was found to be 1st order kinetics. Extraction of chromium (VI) by Tri methyl amine (TMA) dissolved in chloroform from nitric acid media has been carried out. Effect of concentrations of metal and TMA on the extraction has been studied. Attempts were also made to strip chromium from the organic phase with 0.2M NaOH. The extracted species are identified as TMA H+ Cr O3 X- .
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