Intricate Cu, Pb and Zn sulphide ore is difficult to be separated by flotation, because Cu, Pb and Zn minerals is very close and the side of these minerals in ting.

• 某铜铅锌硫化矿,铜铅锌共生关系密切,且铅锌矿物嵌布粒度细小,铅锌矿物分离难度大。