In order to master the occurrence state of associated gold in copper ore and process characteristics of main ore minerals in Yinshan ore field,the mineral technology of copper ore in Yinshan ore field was systematically studied by means of optical microscope,electron microscope,electron probe,XRD,MLA,selective dissolution test and other comprehensive means.The results showed that the minerals in Yinshan copper ore are mainly pyrite and chalcopyrite,followed by tetrahedrite,arseno-tetrahedrite,bornite,chalcocite,copper blue and so on.The gold minerals are mainly natural gold,and there is a small amount of silver gold.The embedded gold is mainly wrapped gold,accounting for 46.41％,with intergranular gold accounting for 44.17％,and fracture gold accounting for 9.42％.The gold mineral size is mainly fine gold,accounting for 94.61％.There are a small amount of fine gold and medium gold,no coarse gold and giant gold.The research results provide a theoretical basis for the formulation of appropriate sorting process and pharmaceutical system.
occurrence statesYinshan polymetallic mineral fieldcopper oreassociated gold
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