镍钴湿法冶炼中铁渣的回收利用镍钴湿法冶炼过程中，有大量铜铁渣，干渣中成分如下（％）：Ｈｅ１０、Ｃｏ０．５、Ｎｉ５％Ｃｕ２％。这样的渣在某些厂堆积如山，既降低有价金属回收率，又造成环境污染。为综合利用这些残渣，近二十年来，采取了重复洗渣、氢还原制合金粉... Recycling of Iron Slag in Nickel-Cobalt Hydrometallurgy There are a lot of copper-iron slag in the wet-smelting process of nickel and cobalt. The dry slag has the following composition (%): He10, Co0.5, Ni5% Cu2%. Such slag accumulation in some plants, both to reduce the recovery rate of valuable metals, but also cause environmental pollution. For the comprehensive utilization of these residues, nearly two decades, has taken repeated washing residue, hydrogen reduction of alloy powder ...