A STUDY ON PHOTOCHEMICAL SEPARATION OF RARE-EARTHS - THE SEPARATION OF EUROPIUM FROM AN INDUSTRIAL CONCENTRATE MATERIAL OF SAMARIUM, EUROPIUM, AND GADOLINIUM

被引：17

作者：

QIU, LF ^{[1
]}

KANG, XH ^{[1
]}

WANG, TS ^{[1
]}

机构：

[1] TIANJIN UNIV,TIANJIN,PEOPLES R CHINA

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1991年 / 26卷 / 02期

关键词：

D O I：

10.1080/01496399108050467

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Eu can be separated by photoreduction from the Sm, Eu, and Gd concentrate in a mixed alcohol (ethanol and isopropanol) system by using a high-pressure mercury lamp as the light source. The influencing factors, such as the concentration of EtOH-isopropanol, irradiation time, and the lamp power, on the photoreduction were investigated in detail in this research, and the optimum technological conditions were determined. The separation coefficients were beta-Gd/Eu > beta-Sm/Eu = 960, and the yield of Eu(II) is 95%. The purity of Eu obtained is 92%.

引用

页码：199 / 221

页数：23

共 12 条

[1]

DAWIS DD, 1977, INORG CHEM, V16, P670

[2] PHOTOCHEMICAL SEPARATION OF EUROPIUM FROM LANTHANIDE MIXTURES IN AQUEOUS-SOLUTION [J].