Abstract
The paper embodies the solvent extraction behavior of cobalt and lithium from mixed sulphate solution using Na-Cyanex 272 as an extractant. The effect of different parameters such as pH of feed solution, extractant concentration, cobalt and lithium ion concentrations in the feed solution and stripping behavior using different mineral acids such as H 2SO 4, HCl, HNO 3 have been studied. The highest separation factor of 62 was obtained with 0.03 M Na-Cyanex 272 at an equilibrium pH of 6.90 from mixed solution of 0.01 M cobalt and lithium sulphate. About 84% of cobalt was extracted with a minimum of 8% lithium co-extraction at this condition. Cobalt was extracted as [CoA 2·3HA] org with 65% Na-Cyanex 272. 2 mol of Na-Cyanex 272 are required for the extraction of 1 mol of cobalt. A complete stripping of cobalt can be achieved from the loaded organic with 0.01 M sulfuric acid solution. Cobalt sulphate solution with > 99% purity can be obtained.
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.
