一般情况下,铜矿石在冶炼前必须经选矿,但在浸出时,矿石往往是不经选矿而直接处理,甚至不可能考虑用选矿作为准备工序。对于混合矿石,浮选法用来分离氧化物和硫化物,以避免冶炼炉中硫的不足,但对这种处理方法来说,主要的氧化矿物必须是孔雀石。硅孔雀石和其他含铜硅酸盐矿物的氧化矿 In general, copper ore must be beneficiated before smelting, but in the leaching, the ore is often directly processed without ore dressing, or even impossible to consider the use of dressing as a preparatory process. For mixed ores, flotation is used to separate oxides and sulphides to avoid sulfur deficiency in the smelting furnace, but for this treatment the main oxidizing mineral must be malachite. Siliceous malachite and other oxide minerals containing copper silicate minerals