2009•Multipurpose Utilization of Mineral ResourcesRequires access

Experimental Research on the Mineral Processing Technology for Treating a Refractory Low-grade Gold Ore

Chao Xu

Abstract

A experimental research on the mineral processing technology for separating a refractory low-grade gold ore was carried out in the laboratory.The test results indicated that by using a closed circuit flotation flowsheet of one roughing-three cleaning-three scavenging flotation,a qualified gold concentrate of 118.5g/t Au with a recovery of 80.34% can be obtained.After roasting of flotation concentrate for one hour at 600℃,then the cyanide leaching of the roasted concentrate was performed.The leaching rate of gold reached 90.94%,and the overall gold recovery is 73.06%.

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Key concepts: Roasting, Gold ore, Mineral processing, Leaching (pedology), Metallurgy, Gold extraction, Gold cyanidation, Refractory (planetary science)