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某矿矿石以铜、锡为主,采用氰化法除砷选铜,重选法回收锡石。我们认为采用无氰法除砷选铜,重选法回收锡石的选别方案有着特殊意义,为此进行了探讨性试验。一、矿石性质该矿床属于与次火山岩有关的中温裂隙充填热液矿床。矿石类型比较简单,与锡石、毒砂、黄铁矿伴生的黄铜矿矿石占全区总储量的95％以上,与方铅矿、闪锌矿伴生的黄铜矿少见。主要金属矿物有:黄铜矿、黄铁矿、毒砂、白铁矿、锡石、闪锌矿、方铅矿
A mine ore to copper, tin-based, cyanide removal of arsenic copper, re-election cassiterite recovery. We think it is of special significance to use the cyanide-free method to remove arsenic from copper and re-select the recovered cassiterite. Therefore, we conducted exploratory tests for this purpose. First, the nature of the ore The deposit belongs to subvolcanic rocks associated with medium temperature fissure hydrothermal deposits. Ore type is relatively simple, and cassiterite, arsenopyrite, pyrite associated chalcopyrite ore accounted for more than 95% of the total reserves, and galena, sphalerite associated chalcopyrite rare. The main metal minerals are: chalcopyrite, pyrite, arsenopyrite, iron ore, cassiterite, sphalerite, galena