ECO-SAFE METHOD FOR PROCESSING OF TECHNOLOGICAL RESISTANT ANTHROPOLOGENIC MINERAL RESOURCE

Tsisana Gagnidze, Rusudan Chagelishvili

Abstract


The possibility of gold extraction from the concentrate obtained by secondary enrichment of flotation tails of Madneuli gold -containing barite - polymetallic ore has been studied. Such concentrate contains the gold in the mineral in finely - impregnated form and is considered as difficult-to-process material. It was shown that at the use of  Fe2 (SO4)3  as an oxidizer in thiourea acid solution, the concentrate preliminary  milling and roasting at 4000C is necessary for the gold 90% extraction. By electrochemical method the gold 90% extraction is reached at the system “soft” oxidation in the conditions of Red/Ox potential of 0,4 V in temperature range of 25-35 0C.


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DOI: http://dx.doi.org/10.17628/ecb.2016.5.423-427

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