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在试验室研究了采用由钢电极电解产生的铜离子活化闪锌矿的方法,以代替通常添加硫酸铜的实际。由于用铜板对试验室浮选机三面衬里,提供了大的铜表面积,衬里与低压直流电源的正极相连,而浮选机的叶轮连结负极,采用这种装置能有效地活化闪锌矿,然后用黄药作捕收剂浮选。采用0.1062磅/吨电解铜和0.488千瓦小时电能获得的浮选结果比得上用1磅/吨CuSO_4·5H_2O(0.255磅/吨铜)所取得的浮选结果。由于生成不溶性沉淀,铜的消耗与电流通过时间长短有关。为了减少消耗,应在最短时间内,通过最大的电流。
In the laboratory, a method of activating sphalerite by copper ions produced by electrolysis of a steel electrode was studied instead of the usual practice of adding copper sulfate. Because copper is used to line up the laboratory flotation machine on three sides, a large copper surface area is provided. The lining is connected to the positive pole of a low-voltage DC power supply. The impeller of the flotation machine is connected to the negative pole. This device activates sphalerite effectively Xanthate collector for flotation. Flotation results obtained with 0.1062 lb / ton of electrolytic copper and 0.488 kWh of electricity were comparable to the flotation results obtained with 1 ppt / ton of CuSO 4 · 5H 2 O (0.255 lb / ton of copper). Due to the formation of insoluble precipitate, copper consumption and the passage of time related to the length of time. In order to reduce consumption, the maximum current should be passed in the shortest time.