四川省乌坡铜矿的浮选尾矿,含铜约0.8%,主要是氧化铜。可用氯化铵—电积法处理,直接从矿石中回收铜粉,现简介如下。(一)试验装置 1升烧杯中放一个由多孔塑料管和两层玻璃布构成的隔膜框,框内置石墨阳板,框外用铜片做阴极。异极距离30毫米。(二)试验与结果 将尾矿与氯化铵溶液(～ Upo copper mine in Sichuan Province flotation tailings, containing about 0.8% copper, mainly copper oxide. Available ammonium chloride - electrowinning treatment, recovery of copper directly from the ore, are summarized below. (A) test device 1 liter beaker placed in a porous plastic tube and two glass cloth diaphragm frame, built-in graphite box Yang, outside the box with copper cathode. The distance between the poles is 30 mm. (B) test and results Tailings and ammonium chloride solution (~