摘要
研究了从高酸度、低稀土浓度的稀土分组液中回收酸并富集稀土。对于盐酸浓度约2mol/L的稀土溶液,用KS-1均相膜进行扩散渗析处理,然后用P507萃取,酸回收率达80%;对于稀土质量浓度约10g/L的溶液,用P204萃取可浓缩富集到25g/L。也研究了用732树脂富集稀土,结果较为满意。
Enrichment of rare earth elements and recovery of acid from rare earth grouPing solution which acidity was high and rare earth elements concentration was low have been experimented. The acid recovery reached 80% from the solution of hydrochloric acid concentration about 2 mol/L after dialysis treatment with KS-1 homogeneous membrane and solvent extraction by P507. The rare earth elements in the solution could be enriched from 10 g/L to 25 g/L by P204 solvent extraction. Rare earth elements were also enriched by 732 ion exchange resin,the results were satisfactory.
出处
《湿法冶金》
CAS
北大核心
2013年第6期389-394,共6页
Hydrometallurgy of China
关键词
稀土分组液
稀土
酸
回收
富集
rare earth grouping solution
rare earth
acid
recovery
enrichment
