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ISSN 2063-5346
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ECO-SAFE METHOD FOR PROCESSING OF TECHNOLOGICAL RESISTANT ANTHROPOGENIC MINERAL RESOURCE

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Tsisana Gagnidze[a]* and Rusudan Chagelishvili
» doi: 10.17628/ECB.2016.5.423

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 by the use of Fe2(SO4)3 as an oxidizer in thiourea acidic solution, the concentrate preliminary milling and roasting at 400 0C is necessary for the 90 % extraction of gold. By electrochemical method, the 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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