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Alternatives to cyanide in the gold mining industry: what prospects for the future

Hilson, G. and Monhemius, A. J. (2006) Alternatives to cyanide in the gold mining industry: what prospects for the future. Journal of Cleaner Production, 14 (12-13). pp. 1158-1167. ISSN 0959-6526

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To link to this article DOI: 10.1016/j.clepro.2004.09.005

Abstract/Summary

This paper reviews a series of alternative lixiviant systems for the recovery of gold from ores and concentrates. For over 100 years, cyanide has been the leach reagent of choice in gold mining because of its high gold recoveries, robustness and relatively low costs. The environmental damages resulting from its mismanagement, however, have initiated widespread research aimed at identifying and developing less toxic leaching agents. The most widely-researched alternative lixiviants for gold ores are examined in this paper, but it is evident that none has yet made any significant inroad into the dominant position of cyanide as the reagent of choice at the vast majority of gold mines worldwide. (c) 2005 Published by Elsevier Ltd.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Agriculture, Policy and Development
ID Code:8662
Uncontrolled Keywords:cyanide, gold, alternatives, thiourea, thiosulphate, thiocyanate, THIOCYANATE SOLUTIONS, THIOUREA SOLUTIONS, PRECIOUS METALS, EXTRACTION, RECOVERY, ORES, AGGLOMERATION, DISSOLUTION, BEHAVIOR, SYSTEMS

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