摘要
在用碳酸铵沉淀氯化镨钕过程中,某些络合剂可与铝离子形成可溶性络合阴离子,使铝留在溶液中,用此法可降低碳酸镨钕中杂质铝的含量。对几种络合剂进行了对比试验,探索了去除碳酸镨钕中铝的可行性工艺条件。结果表明,碳酸镨钕中60%的铝可以去除。
Some complex reagents can form dissoluble complex anions with aluminum cations during depositing of praseodymium -neodymium chloride with ammonium carbonate solution, and remain aluminum in the solution. Aluminum cation in praseodymium-neodymium carbonate can be decreased by the method. The contrast tests are carried to some complex reagents for examining process conditions feasibility of removing aluminum from praseodymium-neodymium carbonate. The results show that aluminum of 60% in praseodymium-neodymium carbonate can be removed.
出处
《湿法冶金》
CAS
2005年第2期92-94,共3页
Hydrometallurgy of China
关键词
稀土
铝
碳酸镨钕
络合剂
沉淀
rare earth
aluminum
praseodymium-neodymium carbonate
complex reagent
deposit
