阿尔玛林克斯基铅选厂的任务之一,是降低混合精矿分离作业中的金属损失率。该厂1979—1981年的生产结果分析表明,有7～8％的锌损失在铅精矿中。先前已经知道的烯属烃氧化物对硫化物有选择作用:方铅矿回收率、黄铜矿和黄铁矿的回收率随着乙烯氧化物耗量的增加而提高,而 One of the tasks of the Alma Linkki Lead Works is to reduce the metal loss rate in mixed concentrate separation operations. Analysis of the plant’s production from 1979 to 1981 showed that 7-8% of the zinc lost in the lead concentrate. Olefin oxides have previously been known to have a selective effect on sulphides: galena recovery, chalcopyrite and pyrite recovery increase with ethylene oxide consumption