The Study On Tailings Of Lala Copper Deposit Recycled Use In Sichuan Province, China

Cu, Mo, Co and Fe, part of S, Au, Ag enriched in the copper-concentrated orealso recycled since Lala copper deposit was mined. But other valuable components inthe mineral resources were neglected. All content of Cu, Co and Au in the tailingsrecycled at present are still high. It has caused unreasonable the mine mineral productstructure and serious waste of resources, and the mineral resources have not furthercomprehensively utilized, all of these has also further affected the economic benefitsof the mine. Therefore, based on the valuable component recycled in the tailings,some new ideas and necessary technical support to create greater economic, social andecological benefits are suggested.Analysis based on lithology, structure, construction, chemical composition of theore and granularity, mineral composition, chemical composition of the tailings, manykinds of useful components in the tailings such as Cu, Co, Mo, Se, Te, Ga, Re, Au, Nb,Fe, P, REE, and so on are identified. According to the characteristics of the tailings a-nd many use of succeed the test results oftailings recycled, recycled experiment plansand its technological processes of the valuable elements in the tailings of Lala copperdeposit are introduced. Used static income, some technological processes studied hig-her for the tailings of Lala copper deposit recycled are given economic feasible evalu-ation, such as Cu-Co recycled technological process, Au recycled by flotation process,Au recycled by gravity and flotation separation, Nb recycled technological process, Fe-Cu recycled technological process and so on. And the best technological process inefficiency is determined. In the end, some advices to the enterprise in the process of t-he tailings converting into resources are given.The research indicated that recycle the valuable components is feasible, especial-lly for the tailings re-election recovered in early repository of Lala copper deposit. Away to the mine make the best of mineral resource and improve efficiency of its, andextend its life are suggested. The tailings recovered have important practical significa- nce in resource-environmental-social-economic coordinate development to the areasthat the enterprise locate in.