摘要
本文以阳离子交换纤维作为交换材料，以Ｃｕ￣（２＋）作为延缓离子，ＥＤＴＡ为排代剂制备纯度≥５Ｎ的Ｅｒ＿２Ｏ＿３。研究了柱填充密度、柱比、ＥＤＴＡ浓度、淋洗速度及温度对分离效果的影响。通过优化工艺条件，制备出了纯度≥５Ｎ的Ｅｋ＿２Ｏ＿３。
This paper studies tbedfects of such factors as ratio of column,EDTA concentra-tion,elution speed,density of packing in column and temperature on the separation result,using cation exchange fiber as an exchange material, Cu￣(2+) as retarding agent and EDTA as displacer for producing the high purity Er_2O_3. Considering all these aspects,the high purity Er_2O_3≥99.999% was produced by optimizing the technology condition.
出处
《稀土》
EI
CAS
CSCD
1995年第3期17-19,共3页
Chinese Rare Earths
