金属离子对铜蓝和黄铁矿浮选行为的影响

摘要

In the flotation system of ammonium dibutyl dithiophosphate,the effects of Cu2+,Fe2+,Fe3+ and Ca2+ on the floatability of covellite and pyrite were investigated by single mineral flotation tests and solution chemistry calculation.The results show that the above four metal ions have a great effect on the floatability of covellite and pyrite,and all of them have different inhibitory effects,especially the inhibition of Fe3+ is the most significant at the same concentration.In addition,the hydroxide precipitation of metal ions is an effective component of its inhibition of minerals.%通过单矿物浮选试验和浮选溶液化学计算的方法,考察了丁基铵黑药浮选体系中Cu2+、Fe2+、Fe3+和Ca2+对铜蓝和黄铁矿可浮性的影响.结果表明,四种离子对铜蓝、黄铁矿的可浮性的影响很大,均表现出不同程度的抑制作用,尤其相同浓度下Fe3的抑制作用最为显著.此外,金属离子氢氧化物沉淀是其抑制矿物的有效组分.