Some methods of cobalt extraction from dilute ammonia solutions
Authors:
Abstract
The advantage of ammonia leaching of cobalt-bearing ores after reduction roasting is the possibility of almost complete separation of iron. However, the concentration of cobalt in solution after ammonia leaching of low-grade ores is very low, which causes difficulties in their further processing. Precipitation of cobalt from ammonia solution in the form of sulfide. The solubility of cobalt sulfide in ammonia solutions is negligibly small, so when sulfides Na₂S, (NH₄)₂S are introduced into the solution, cobalt ammine complexes are destroyed and metal sulfide is precipitated.
Область исследования:
(Archived) Without section
Funding:
None
References
- Gindin L. M. et al. Extraction-electrolysis method for obtaining high purity cobalt. Tsvetnye metally, No. 12, 1961.
- Illyuvieva G. V. Application of ionites for extraction of some non-ferrous metals from dilute solutions. Izv. vuzov, Tsvetnaya metallurgiya, No. 2, 1963.
- Kasherininov G. O. Research of the process of ammonia leaching of cobalt from poor oxidized ores. Author's abstract of cand. diss., 1954.
- Materova E. A., Ehrenkrantz P. V. Exchange of nickel ions on sulfo-cationites. V sb. Khromatografiya. Izd-vo LGU, 1956.
- Chernobrov S. M., Gorelik E. M. Application of Ionites in Hydrometallurgy of Nickel and Cobalt. Tr. in-ta Gipronikel', vol. 3, 1958.
- Redlik M. Hutnicke Listy, 2, No. 13, 1958.
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