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截至目前为止,世界上从铜、镍、钴、铅、锌等硫化矿提取金属的工艺,主要是采用氧化脱硫——还原的工艺流程。但是随着工业技术条件的发展,用H_2或CO还原硫化物直接一步获取金属是有色冶金、特别是重金属冶金具有完全脱出现有传统工艺流程的新方法。采用传统工艺的氧化法,在高温条件下SO_2和烟尘的污染是十分严重的,管辺系统密封不(?),虽能收集制酸,但部分SO_2和烟尘仍难消除。从整个工艺流程来看,工序多,各项技术经济指标均不理想,特别是在铜镍分离问题上采用磨浮法或分层熔炼法更
So far, the world from copper, nickel, cobalt, lead, zinc and other sulfide ore extraction process of metal, mainly using oxidative desulfurization - reduction process. However, with the development of industrial and technical conditions, it is a non-ferrous metallurgy to directly obtain the metal by H 2 or CO reduction of sulfide. In particular, heavy metal metallurgy has a new method of completely removing the existing traditional process. The traditional oxidation process, SO2 and soot pollution is very serious under high temperature conditions, the tube system seal is not (?), Although the acid can be collected, but some of the SO2 and soot is still difficult to eliminate. From the point of view of the entire process, the process and more, the technical and economic indicators are not ideal, especially in the separation of copper and nickel using the method of grinding or stratified smelting more