铜阳极泥综合回收技术研究

Study on Comprehensive Utilization Technique of Copper Anode Slime

以某铜冶炼厂电解铜阳极泥为原料,对预处理脱铜、硒和碲—浸出渣碳酸钠转化—醋酸浸出铅—除铅渣氯化分金—分金渣亚硫酸钠浸银的阳极泥综合回收工艺进行了详细的研究,结果表明:通过选取合适工艺技术参数,可使金、银、铜、铅、硒、碲的浸出率分别达到:99.23%、99.58%、99.30%、93.96%、86.11%、89.58%。

his paper reports the detailed research on comprehensive utilization of copper anode slime from a copper smeltery. And the main technological processes are： removal of Cu, Se and Te, then transforming lead sulfate to lead carbonate with natronite followed by ethylic acid leaching, then chlorination and extraction of gold, and then leaching of Ag with sodium sulfite. The results show that the leaching rates of Au, Ag, Cu, Pb, Se and Te can reach to 99.23%, 99.58%, 99.30%, 93.96%, 86.11% and 89.58% respectively on proper condition.