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多金属矿石的选别工艺因浮选系统和浮选制度的不同而有很大的区别。当选择某种方案时,应考虑到所处理的矿石的物质粗成和结构的特征,并应符合于经济上的要求和当地条件。广泛采用的系统是先回收铅然后回收锌,在大多数情况下是混合使用氰化物和硫酸锌作为闪锌矿的抑制剂,用硫酸铜为活化剂,虽然这个方法有它的优点,但也有缺点,共中最主要的是氰化物有毒。
Polymetallic ore sorting process due to flotation systems and flotation system is very different. When choosing a program, the material composition and structural characteristics of the ore handled should be taken into account and should be compatible with the economic requirements and local conditions. A widely used system is to recover the lead first and then to recover the zinc, in most cases using a mixture of cyanide and zinc sulphate as an inhibitor of sphalerite and copper sulphate as an activator. Although this method has its advantages, Disadvantages, a total of cyanide is the most important toxic.