Beneficiation Studies on Cobalt Bearing Ore from Africa

Sutaone, A T and Aehdi, R S and Barthwal, Y M and Gundewar, C S (2006) Beneficiation Studies on Cobalt Bearing Ore from Africa. In: Proceedings of the International Seminar on Mineral Processing Technology and Indo-Korean Workshop on Resource Recycling (MPT-2006), March 8-10, 2006, NML, Chennai.



Cobalt bearing ore is used in Africa for hydro-metallurg-ical extraction of Co. The party desired to know whether it is possible to pre-concentrate this ore in order to reduce the material handled by metallurgical operations. This cobalt bearing sample (5% Co) was beneficiated in the Modern Mineral Processing Laboratory and Pilot Plant of Indian Bureau of Mines at Nagpur. The cobalt was ident-ified by EPMA to be present as WAD where manganese is replaced by cobalt. The as-received sample was dominated by fines. Screening the as received sample on 10 mesh followed by desliming of -10 mesh fraction yielded a Co concentrate assaying 7.2% Co with 94.6% cobalt recovery. Although the concentrate assays only 7.2% Co, this simple process developed offers the advantage that around 33% of the slimes (<20 microns in size assaying around I% Co) can bypass the metallurgical operations to follow thus drast-ically reducing the handling, settling and filtration problems in the extraction of Co by hydrometallurgical route with minimum Co losses in the tailings.

Item Type:Conference or Workshop Item (Paper)
Official URL/DOI:
Uncontrolled Keywords:Cobalt bearing ore; hydrometallurgical route; mineralogy; mineralogical analysis
Divisions:Metal Extraction and Forming
ID Code:6255
Deposited By:Sahu A K
Deposited On:14 Dec 2012 15:09
Last Modified:14 Dec 2012 15:09
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