热酸浸出-黄铁矾法目前国外已有20多家锌厂采用此法,我国也有柳州、会东、西北铅锌等厂家采用此法。其优点为流程简单、投资省、见效快、锌浸出率较常规法有明显提高,可达到95～97%,但Pb、Ag及稀散金属进入矾渣中,不利于综合回收,又矾渣中含有少量Cd、As、Cu等易造成环境污染,为了改进常规黄钾铁矾法,国外已研究成功降低 Hot acid leaching - yellow alum method At present, more than 20 foreign zinc plants adopt this method, our country also has Liuzhou, east, northwest lead and zinc and other manufacturers use this method. The advantages of the process is simple, investment, quick, zinc leaching rate significantly increased compared with the conventional method, can reach 95 to 97%, but Pb, Ag and rare-earth metals into the slag, is not conducive to the comprehensive recovery, Contains a small amount of Cd, As, Cu and other easily lead to environmental pollution, in order to improve the conventional jarosite method, foreign countries have been successfully reduced