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绥中磷肥厂用八家子铅锌矿的含银硫精矿制酸,其烧渣含银210克/吨左右。烧渣经我所选矿室用浮选法选出银精矿(产率为8～9％),银平均品位800～1200克/吨。我们从1981年起对此银精矿的冶炼流程进行了试验,最后确定了氯盐浸出——铅板置换的工艺,并做了处理规模为100公斤/日的扩大试验,取得了较好的技术指标,为硫精矿烧渣提取银并综合回收铜等有价金属,提供了一个新的处理工艺。
Suizhong Phosphate Fertilizer plant with eight sub-lead-zinc mine containing silver sulfur acid, the slag containing silver 210 g / ton. Slag residue by the selected mine flotation method with silver concentrate (yield of 8 to 9%), the average silver grade 800 ~ 1200 g / ton. Since 1981, we have carried out experiments on the smelting process of this silver concentrate. Finally, we have determined the process of the chloride salt leaching-the replacement of the lead plate and have done the expansion test with a treatment scale of 100 kg / day. We have obtained a good Technical indicators for the sulfur concentrate slag extraction of silver and comprehensive recovery of copper and other valuable metals, providing a new treatment process.