目前我国各选矿厂选收硫化矿物的捕收剂,一般多使用黄药,制造黄药的主要原料,大多数来源于粮食发酵制得的乙醇和丁醇,还需进口一部分以添补不足,因而国家每年要消耗大量的工业用粮和宝贵的外 At present, the beneficiaries of the mineral processing plants in our country choose to use more xanthate for the collection of sulfide minerals. The main raw material for the manufacture of xanthate is mostly ethanol and butanol derived from grain fermentation. Some of them need to be imported to supplement deficiencies and thus The country consumes a large amount of industrial grain and valuable foreign products every year