近年来,铜的碳酸盐和硅酸盐旷物(孔雀石、兰铜矿、硅孔雀石)的浮选,有过许多研究课题,然而,这个问题几乎没有获得有效解决。随着硫化矿物储量的减少,这些氧化矿物的开采,似乎是今后铜的重要来源。多年以来,黄药一直被认为是孔雀石的捕收剂,但只是在用量很高的时候,或者是用量虽低,但必须紧接在矿物被硫离子活化之后才行。本文介绍的这类化合物,是对未经活化的孔雀石和兰铜矿非常有效的捕收剂。这类阴离 In recent years there have been many research projects on the flotation of copper carbonate and silicate quarries (malachite, blue copper, and silicon malachite), however, this problem has hardly been effectively solved. With the reduction of sulfide mineral reserves, the mining of these oxide minerals seems to be an important source of copper in the future. For many years, xanthate has long been considered the collector of malachite, but only at high levels or at low levels, but it must be applied immediately after the minerals have been activated by sulfide ions. The compounds described in this paper are very effective collectors for unactivated malachite and blue copper. This type of negative