摘要
在工业生产实践中，对Ｎｄ－Ｓｍ分组采用大捞大洗和加氨水强化萃取分离的工艺方法实现了一步萃取法除去Ｌａ３＋Ｃｅ３＋Ｐｒ３＋Ｎｄ３＋萃余液中Ｓｍ３＋的目的，经六个月运行，产品Ｎｄ２Ｏ３中杂质Ｓｍ２Ｏ３含量稳定在０．０３％以下。
In industrial operation,impurity Sm 3+ containing in raffinate can be directly removed in Nd-Sm separation process by raising flow rate of extractant and scrub solution and introducing aqeous ammonia to strengthen extraction.During six-month operation,the impurity Sm 2O 3 in product Nd 2O 3 was controlled steadily below 0.03 percent
出处
《稀土》
EI
CAS
CSCD
北大核心
1998年第6期15-18,共4页
Chinese Rare Earths
