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Experimental Study on Cyanidation of Gold Ore Containing Arsenic,Sulphur and Lead

Shaoqing Li

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Abstract

The content of gold in the gold ore containing arsenic,sulphur and lead is about 17 to 18g/T,and the gold ore contains 20.1~20.5(mass fraction) arsenic,18.46% sulphur and 3.05% lead,which restricts the cyanide leaching rate also disturbed by other elements within 5%~10%.However,the gold leaching rate reaches 80%~85% with the existence of anti-film agent and activator after the ore is oxidized for 12~15h.Moreover,the gold leaching rate reaches beyond 90% after cyanide leaching for the second time,which can benefit a lot.

About this research paper

What this paper is about

The content of gold in the gold ore containing arsenic,sulphur and lead is about 17 to 18g/T,and the gold ore contains 20.1~20.5(mass fraction) arsenic,18.46% sulphur and 3.05% lead,which restricts the cyanide leaching rate also disturbed by other elements within 5%~10%.However,the gold leaching rate reaches 80%~85% with the existence of anti-film agent and activator after the ore is oxidized for 12~15h.Moreover,the gold leaching rate reaches beyond 90% after cyanide leaching for the second time,which can benefit a lot.

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Available abstract

The content of gold in the gold ore containing arsenic,sulphur and lead is about 17 to 18g/T,and the gold ore contains 20.1~20.5(mass fraction) arsenic,18.46% sulphur and 3.05% lead,which restricts the cyanide leaching rate also disturbed by other elements within 5%~10%.However,the gold leaching rate reaches 80%~85% with the existence of anti-film agent and activator after the ore is oxidized for 12~15h.Moreover,the gold leaching rate reaches beyond 90% after cyanide leaching for the second time,which can benefit a lot.

Key concepts: Gold cyanidation, Leaching (pedology), Arsenic, Gold ore, Sulfur, Cyanide, Lixiviant, Metallurgy

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