2012•Nonferrous MetalsRequires access

Mineral Processing Technology Research on a Refractory Copper Ore of Yunnan

Peng Fenlan

Abstract

A copper ore containing 1.68% Cu with oxidation rate of 19.64%,in which combined copper oxide accounts for 13.69%,is a complex and refractory copper sulphide ore.As a result of tyrolite in ore with higher content,it is difficult to be activated,thus concentrate recovery rate was only about 80%.Considering the technical and economic factors,the ore is ground to a fineness of 70% below 74 μm followed by single flotation process,and it is considered to be a reasonable sorting process,finally the copper concentrate grading 32.23% Cu was obtained,at recovery of 78.48% Cu.

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Key concepts: Fineness, Copper, Copper extraction techniques, Metallurgy, Mineral processing, Recovery rate, Copper ore, Refractory (planetary science)