RECOVERY OF URANIUM FROM SEAWATER .7. CONCENTRATION AND SEPARATION OF URANIUM IN ACIDIC ELUATE

被引：21

作者：

EGAWA, H ^{[1
]}

NONAKA, T ^{[1
]}

NAKAYAMA, M ^{[1
]}

机构：

[1] KUMAMOTO UNIV,FAC PHARMACEUT SCI,KUMAMOTO 862,JAPAN

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1990年 / 29卷 / 11期

关键词：

D O I：

10.1021/ie00107a012

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Macroporous chelating resins (RSP, RSPO, RCSP, and RCSPO) containing dihydroxyphosphino and/or -phosphono groups were examined for the concentration and separation of uranium from acidic eluates of macroporous chelating resin containing amidoxime groups. RSP and RSPO had a high adsorption capacity for uranium even in 0.25-0.50 mol-dm-3H2SO4. Uranium adsorbed on the resins was eluted easily as a uranyl carbonate complex by use of 0.25 mol-dm-3Na2CO3. In this effluent, other metal ions were hardly present. The use of RSP and RSPO was very effective in concentrating uranium from seawater and separating it from most other elements. © 1990, American Chemical Society. All rights reserved.

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页码：2273 / 2277

页数：5

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