我厂使用的铜精矿,是钨矿重选后获得的副产品,其中含铋很高,成分见表1。由于原料中含铋很高,严重地影响产品质量,粗铜含铋有时高达1.39%。曾打算在反射炉吹炼时,使铋在高温下除去,以提高粗铜品位,但结果铜的回收率显著下降,增加了金属损失。因此,我们在电解作业上进行不溶阳极电解,加强电解液净化和硫酸 The copper concentrate used by our factory is a byproduct obtained after the re-election of tungsten ore, including high bismuth content. Due to the high content of bismuth in the raw materials, which seriously affects the product quality, the bismuth content of blister copper sometimes reaches as high as 1.39%. It was intended to remove bismuth at elevated temperatures during refiring furnace blows to increase the blister grade, but with the result that copper recovery was significantly reduced and metal loss was increased. As a result, we conducted insoluble anolyte on the electrolysis operation, enhanced electrolyte purification and sulfuric acid