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利用小振幅循环伏安法(SACV)技术研究了与饱和甘汞电极比较,在-1～+1V的电势范围内,辉铜矿和铜蓝浸没在不含黄药和含黄药、pH为9.2的硼酸盐溶液中的表面氧化机理。证明了黄原酸铜化合物的形成,是硫化矿表面与黄原酸根离子直接反应的结果。此外,在浮选试验的基础上,研究了电化学势对矿物可浮性的影响。结果表明,引起铜蓝疏水的物质有两种:黄原酸铜[CuEtX和Cu(EtX)_2]及双黄药[(CuX)_2],而引起辉铜矿疏水的物质只有CuEtX。
Using small amplitude cyclic voltammetry (SACV) technique, compared with saturated calomel electrode, in the potential range of -1 ~ + 1V, chalcocite and copper blue were immersed in the solution containing neither xanthate nor xanthate, the pH was Surface Oxidation Mechanism in 9.2 Borate Solution. The formation of copper xanthate compounds was proved to be the result of the direct reaction of xanthate ions on the sulphide surface. In addition, based on the flotation test, the influence of electrochemical potential on the floatability of minerals was studied. The results show that there are two kinds of substances that cause copper blue hydrophobic: copper xanthate [CuEtX and Cu (EtX) _2] and double xanthate [(CuX) _2], while only CuEtX is the substance that causes hydrophobicity of chalcopyrite.