The recovery of copper from reverberatory furnace slag utilizing flotation has been studied. The effective factors such as particle size, pH, the amount and type of collector and additives, and flotation time were examined. The effect of cooling rate on flotation behavior of the slag was also studied. For an air-cooled slag at optimized conditions, 72 percent of copper was recovered in one stage flotation and a 12.6 percent copper concentrate was achieved. The best recovery efficiency was obtained when 30 g/t R407 was used as collector. It was found that recovery was also affected by the cooling rate of molten slag, and increased up to 84 percent when the slag was cooled slowly.
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机译：研究了利用浮选法从反射炉渣中回收铜的方法。检查了诸如粒径，pH，收集器和添加剂的数量和类型以及浮选时间等有效因素。还研究了冷却速度对矿渣浮选行为的影响。对于优化条件下的风冷炉渣，在一级浮选中回收了72％的铜，并获得了12.6％的铜精矿。当使用30 g / t R407作为收集器时，可获得最佳的回收效率。已发现，回收率还受熔融炉渣冷却速度的影响，当炉渣缓慢冷却时，回收率可提高至84％。
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