Karmaker, P and Mishra, D and Sahu, K K and Agarwal, A (2022) Selective Separation of Iron and Cobalt from Leached Tungsten Carbide Scrap by Solvent Extraction. Journal of Sustainability Metallurgy .
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Chloride leaching of the oxidized tungsten carbide scrap generated a leach liquor of composition(g/L): Fe-7.54, Co-15 & HCl-150, which was used to investigate the selective separation of iron and cobalt by its liquid-liquid interaction with 12.5%(v/v) Alamine-336 +10%(v/v)isodecanol in kerosene. Effect of various parameters such as solution acidity, solvent concentration, phase modifier concentration, iron and cobalt concentration(externally) in the feed solution, were optimized. McCabe-Thiele plots for maximum Fe extraction and stripping were made to decide the number of stages at desired O/A ratio. The pure iron and cobalt solutions obtained can be used to synthesize desired product. Remaining acid and regenerated solvent could be recycled to the leaching tank and re-extraction. The overall process has been attempted to function in a close-loop mode. [GRAPHICS]
|Uncontrolled Keywords:||WC-scrap; solvent extraction; alamine-336; fe-co separation; ftir; liquid-liquid-extraction; acid; octylamine; iron(iii); complex; esbinder|
|Divisions:||Metal Extraction and Forming|
|Deposited By:||Dr Mita Tarafder|
|Deposited On:||31 Jan 2022 16:07|
|Last Modified:||31 Jan 2022 16:07|
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