顶吹炉处理铅阳极泥的工业试验

Industrial Test on Treatment of Lead Anode Slime with Top Blowing Furnace

应用顶吹炉吹炼铅阳极泥提取阳极泥中有价金属,工艺包括混合料制备、一次还原熔炼、还原捕金、二次吹炼、回收砷锑等工序。经过大量工业试验表明,该工艺方法产出的贵铅含银不低于70.0%,银直收率95%~98%、回收率99.0%~99.7%,工艺具有流程短、渣含贵金属金银量低、处理量大、能耗低等优势。

Valuable metals were extracted from lead anode slimes with top blowing furnace by blowing smelting. The process route includes preparation of mixed materiel, primary reduction smelting, collection of gold by reduction, secondary converting, and recovery of arsenic and antimony. The industrial test results show that silver content of precious lead is 70% above with silver direct recovery of 95%-98% and total silver recovery of 99.0% - 99.7%. This process has the advantages of short process flow, low content of Au and Ag in slag, bigger treatment capacity, and low energy consumption.