Abstract
This paper reports an account of study conducted on optimization of the process parameters for electro-winning of cobalt from cobalt sulphate solution. Effect of parameters such as bath composition, temperature, current density, agitation etc. on the voltage requirement, current efficiency and power efficiency of cobalt electro-deposition was explored. A maximum current efficiency of 97% was attained with an electrolyte composition of 60 g/L Co, 15 g/L Na 2SO 4, at a temperature of 60 °C, a pH of 4.0 and a cathode current density of 400 A/m 2. The energy consumption was 3.0 kWh/kg of Co deposited. The optimum conditions so established were test examined for recovery of cobalt values from leach liquors generated on processing of Alnico magnet scrap, cemented carbide tool scrap and spent hydrogenation catalyst. The cathode current efficiency ranged from 86% to 94% due to lower concentration (25 to 40 g/L) of cobalt concentration in the processed leach liquor.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
