天水金精矿氰化尾渣综合回收铜铅的试验研究

Experimental study of synthetic recovery of copper and lead from cyanide tailings of Tianshui gold concentrate

对天水金精矿氰化尾渣采用不脱药、不加热、不洗涤的优先浮选工艺流程回收铜铅，获得了合格的铜精矿和铅精矿；金银也同时富集到两精矿中，达到综合回收的目的。试验采用ＪＹ－ １ 号和硫酸铜作铜活化剂，既消除了氢氰酸对环境的污染，又抑制了铅。

Adopting preferential flotation flowsheet without heating,washing and separating from reagent to recover copper and lead from cyanide tailings of Tianshui gold concentrate,not only the qualified copper and lead concentrates can be obtained,but also the gold and silver are simultaneously enriched within the two kinds concentrates,attaining the goal of synthetic recovery of valued metals.In the experiments,taking reagent JY No.1 and copper sulfate as activated reagent of copper,the environmental pollution by hydrogen cyanate can be eliminated and the lead can be inhibited.