【摘要】 某高铅锌复杂黝铜精矿富含铜、银,还含有铅、锌、锑等有价金属。通过现有类似工艺方案的比较和试验验证,推荐采用"半硫酸化焙烧—硫酸浸出铜、锌—盐酸氯盐浸出银、锑—次氯酸钠氧化浸金—碳铵转化回收铅"的综合处理工艺回收有价元素。验证试验结果表明,铜、锌、铅的总回收率均大于95%,银、金、锑的总回收率分别大于98%、94%和90%。该工艺中各操作单元大多已有工业应用的实践经验,工业化简单。更多还原

【Abstract】 Complex tetrahedrite concentrates with high Pb-Zn bearing are rich in copper,silver,as well as valuable metals such as lead,zinc,antimony.Based on comparing the existing similar processes scheme and test verification,the following comprehensive process was recommended to recover valuable element,i.e.,half-sulfating roasting,leaching copper and zinc with sulfuric acid,leaching silver and antimony with hydrochloric acid and chlorine salt,oxidizing leaching gold with sodium hypochlorite,lead recovery via ammonium carbonate transformation.The results of verification experiment show that total recovery rate of copper,zinc and lead is 95% above,total recovery rate of silver,gold and antimony is 98%,94% and90%above respectively.This process is easy to be commercialized as most of its operating units have been practiced in industry.更多还原