2011•Precious MetalsRequires access

Experimental Research on the Cyanidation of Gold Ore Containing High Content of Arsenic in Qianxinan

Chunjuan Zhou

Abstract

The content of gold of a certain gold ore containing high content of arsenic is 3 g/t~30 g/t,and the gold ore contains 8%~18% arsenic in Qianxinan.The most gold is exists as fine particales and micro-fine particales,the other is wrapped in sulphide and gangue minerals.The gold cyanide leaching rate was 50%~60%.If adding auxiliary ageng in gold ore containing high content of arsenic,the gold cyanide leaching rate is 82%~91%.It makes the gold ore have great economic benefits and social benefits.

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Key concepts: Gold cyanidation, Arsenic, Gold ore, Gangue, Leaching (pedology), Cyanide, Gold extraction, Arsenopyrite