摘要
采用化学除杂的方法,除去氯化镧溶液中的硫酸根和铅离子,再经过碳酸氢铵沉淀的方法,除去大部分的钙离子及氯离子,制备高品质的碳酸镧。该工艺可以取代P507—盐酸萃取全捞转型除杂工艺,具有成本低,操作简单等优点。
High-quality lanthanum carbonate was prepared by chemical impurity removal of sulfate and lead ions from lanthanum chloride solution, followed by ammonium bicarbonate precipitation to remove most of the calcium and chloride ions. The process can replace the P507-hydrochloric acid extraction process, and has the advantages of low cost and simple operation.
作者
王思捷
柳召刚
侯兆星
Wang Sijie;Liu Zhaogang;Hou Zhaoxing(Inner Mongolia University of Science and Technology,Inner Mongolia,014010;Northern Rare Earth Smelting Branch,Inner Mongolia,014010)
出处
《当代化工研究》
2023年第2期179-181,共3页
Modern Chemical Research
关键词
碳酸镧
化学除杂
化学沉淀
lanthanum carbonate
chemical impurity removal
chemical precipitation
