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铜矿石呈胶结状的矿物矿化,在比较细磨时,仍产生大量的连生体。为了浮选这种连生体,结合使用高级黄药和烃类油。再磨中矿的浮选借助添加矿砂产品得到了加强,后者是这种泥化矿粒的背负体。采用泥、砂和中矿一起分别浮选的发展流程和这样药剂添加制度,可以获得品位40～50％、回收率为95％的高级铜精矿。复合矿石这种矿石的特点是方铅矿和闪锌矿与斑铜矿和辉铜矿共生。本文叙述了采用以前制订的混合浮选工艺来选别这种类型的矿石;之后在使用锌氰络合物抑制斑铜矿和辉铜矿的基础上分离混合精矿。这种工艺可以通过下述方法得到改进和稳定指标: 1)采用阶段磨矿和使用棒磨机; 2)使用适于浮选粗粒矿物的浮选机(泡沫分离浮选机、振动式浮选机); 3)根据矿石的铜品位,自动添加抑制剂。已证实由于锌氰络合物与斑铜矿、辉铜矿相互作用,在矿物表面上生成了硫化锌,导致了它们被抑制。矿浆浓度和温度增高,大大加速泥化辉铜矿和锌氰络合物之间的相互作用,其结果使锌氰络合物分解并转换成不活泼的铜锌络合物,降低了分离的选择性。为了提高分离的选择性,对于辉铜矿含量高的矿石,制订了一种特殊工艺。按照这种工艺,采用亚砜盐和硫酸锌抑制锌和铅的硫化物。在混合浮选之前,分选出泥化辉铜矿。闪锌矿和铜矿物作为铅浮选的尾矿,在排除脉石之后,可从产品中浮出,而铜矿物是采用铁氰化物抑制。采用这样的工艺和药剂制度,可得回收率达75％的铅精矿和回收率为90％的铜精矿。也表明有可能得到高品位的锌精矿。
Mineralization of mineral copper ore is mineralized, when more fine grinding, still produce a large number of even the body. In order to flotate this organism, a combination of high-grade xanthate and hydrocarbon oils is used. The flotation of refineries in the mine is enhanced by the addition of ore products, the latter being the carry-over of the muddy mineral particles. Using the flotation process of mud, sand and medium ore respectively and the system for adding such a chemical, high-grade copper concentrates with a grade of 40-50% and a recovery rate of 95% can be obtained. Complex Ore This ore is characterized by the symbiosis of galena and sphalerite with bornite and chalcocite. This paper describes the selection of this type of ore using a previously developed mixed flotation process; the mixed concentrate is then separated on the basis of the suppression of doxanite and chalcocite using zinc cyanide complex. This process can be improved and stabilized by the following methods: 1) using stage grinding and using a rod mill; 2) using a flotation machine suitable for flotation of coarse-grained minerals (foam separation flotation machine, vibrating float Election machine); 3) According to the grade of copper ore automatically add inhibitors. It has been confirmed that due to the interaction of zinc cyanide complex with bornite and chalcocite, zinc sulfide is formed on the mineral surface, resulting in their inhibition. Increasing the concentration and temperature of the pulp greatly accelerates the interaction between the deminitized chalcopyrite and the zinc cyanide complex. As a result, the zinc cyanide complex is decomposed and converted to an inactive copper-zinc complex, Selective. In order to improve the selectivity of separation, a special process has been developed for ores of high chalcopyrite content. According to this process, sulfoxides and zinc sulfate are used to suppress zinc and lead sulfide. Muddy chalcopyrite was sorted out before mixed flotation. Sphalerite and copper minerals, as tailings for lead flotation, can emerge from the product after the gangue has been eliminated, while the copper mineral is inhibited by ferricyanide. Using this process and pharmaceutical system, lead recovery rate of 75% of lead concentrate and recovery of 90% of the copper concentrate. Also shows that it is possible to get high-grade zinc concentrate.