凡口铅锌矿选矿厂于1975年不使用氰化物,但仍然使用25号黑药。为提高选矿指标,保护环境,我室于去年9月使用沈阳冶金选矿药剂厂生产的钠黑药(主要成分是二甲酚二硫化磷酸钠)进行试验,取得了良好结果。(一)矿石性质凡口铅锌矿石的主要矿物有 Fankou lead-zinc concentrator did not use cyanide in 1975, but still use No. 25 black drug. In order to raise the dressing index and protect the environment, our laboratory tested the sodium black drug (the main component is xylenol disulfide sodium phosphate) produced in Shenyang Metallurgical Flotation Pharmacy last September and achieved good results. (A) the nature of ore The main minerals are fankou lead-zinc ore