有色金属(冶炼部分)

针对氯化洗涤液采用"冷却结晶—铁粉置换—氧化除铁—中和沉锌"工艺实现金、银、铜、铅、锌多元素梯次回收,并产出置换渣、氢氧化锌和氯化铅产品。金、银、铜、铅、锌的回收率分别为99.3%、98.3%、97.8%、81.7%和95.3%。置换渣、氢氧化锌和氯化铅产品中金、银、铜、铅、锌的品位分别为1 462g/t、26 945g/t、29.8%、39.55%和35.2%。

Au,Ag,Cu,Pb and Zn were comprehensively recovered from chloride solution by the process of cooling-crystallization,iron powder replacement,iron removal by oxidation,and zinc neutralization precipitation.Replacement residue,lead chloride and zinc hydroxide were produced in this process.Under the optimum conditions,recovery of Au,Ag,Cu,Pb and Zn is 99.3%,98.3%,97.8%,81.7% and95.3%,respectively.Au,Ag,Cu,Pb and Zn contents in products are 1 462 g/t,26 945 g/t,29.8%,39.55%and 35.2%,respectively.