ELECTROCHEMICAL METHOD OF GOLD EXTRACTION FROM THE RESIDUES OF VACUUM-THERMAL TREATMENT OF GOLD-CONTAINING ANTIMONY ORES OF ZOPKHITO( DEPOSIT)

Tsisana Gagnidze, Jondo Bagdavadze, Rusudan Chagelishvili, Manana Mamporia, Zurab Tsiskaridze, Aleksi Kandelaki

Abstract


The possibility of gold extraction from the residues of vacuum-thermal treatment of the concentrate of gold-containing antimony ore of Zopkhito (deposit) has been established by eco-safe electrochemical method.

The effect of main technological parameters on the process of electrochemical leaching of the residues has been studied in the presence of selective complex-former- thiourea in chloride system and optimal conditions of leaching were established providing the gold extraction from gold-containing residues by 82-90% in the conditions of so-called “soft” oxidation without release of molecular chlorine at the anode and eco-contamination.

Continuous technological process of electrochemical leaching of the residues of gold-containing antimony ore and electrochemical reactor for realization of this process are proposed.

Key words: electrochemical processing, gold-containing ores, gold extraction


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DOI: http://dx.doi.org/10.17628/ecb.2014.3.161-165

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