氧化锌矿溶出液的净化  

Purification of the Digestion Solution of Zinc Oxide Ores

作　　者：邵鸿媚 申晓毅[1] 张彬彬[1] 翟玉春[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2015年第6期811-813,818,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(51204054);中央高校基本科研业务费专项资金资助项目(N110402012)

摘　　要：以中低品位氧化锌矿的硫酸铵焙烧熟料溶出液为原料,其中主要含有Zn SO4,Fe2(SO4)3及Al2(SO4)3,以碳酸氢铵为除杂剂,采用黄铵铁矾法和水解法去除溶液中的杂质Fe和Al以得到较为纯净的Zn SO4溶液,实验考察了溶液p H值、反应温度、反应时间对除铁率的影响,得到了黄铵铁矾渣,继续调节硫酸锌溶液的p H值以水解去除溶液中的Al,得到铝渣.采用XRD,SEM,化学成分分析等手段对黄铵铁矾渣、铝渣进行了表征,结果表明黄铵铁矾发育良好,颗粒规则,氢氧化铝粒度不均匀.Zn SO4 solution was used as a rawmaterial,which was obtained from zinc oxide ores roasted using（ NH4）2SO4and then digested in water. The main components in solution were Zn SO4,Fe2（ SO4）3,Al2（ SO4）3and so on. NH4HCO3 was used as purifier reagent. Aiming to obtain refined Zn SO4 solution, the ammonium jarosite method and hydrolysis method were adopted to eliminate Fe3 ＋and Al3 ＋from the solution. The influences of p H values,the reaction temperature and time on the iron removal rate were discussed,and after the removal of iron,the ammonium jarosite slags were obtained. The p H value of solution was adjusted to precipitate Al3 ＋and Al（ OH）3was yielded out. The XRD,SEMand chemical components analysis were used to characterize the ammonium jarosite and Al（ OH）3slags. The results showed that the ammonium jarosite particles with regular shape growes well,and the size of Al（ OH）3slags is heterogeneous.

关 键 词：硫酸锌溶液 净化 黄铵铁矾 氢氧化铝 

分 类 号：TQ028.38[化学工程]