SELECTIVE EXCHANGE OF PU-4+ AND AM-3+ BY TITANIUM AND TIN ANTIMONATES CATION EXCHANGERS

被引：15

作者：

KANEKO, H ^{[1
]}

TSUJI, M ^{[1
]}

ABE, M ^{[1
]}

MORITA, Y ^{[1
]}

KUBOTA, M ^{[1
]}

机构：

[1] JAPAN ATOM ENERGY RES INST, DEPT FUEL SAFETY RES, TOKAI, IBARAKI 31911, JAPAN

来源：

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY | 1992年 / 29卷 / 10期

关键词：

TITANIUM ANTIMONATE; TIN ANTIMONATE; ION EXCHANGE; ADSORPTION; PLUTONIUM IONS; AMERICIUM IONS; HIGH-LEVEL NUCLEAR WASTES; TRANSURANIUM ELEMENTS;

D O I：

10.1080/18811248.1992.9731623

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The selectivity for Pu4+ and Am3+ has been studied as a function of [HNO3] on titanium and tin antimonates cation exchangers at 30-degrees-C. A large selectivity toward Pu4+ and Am3+ was discovered on tin and titanium antimonates cation exchangers, while they showed low selectivity for 4f elements such as La3+ and Nd3+. The log-log plot of the distribution coefficients vs. [HNO3] showed the linear relationship with a slope nearly equal to the valence of exchanging ions. It indicates that the adsorption predominantly proceeds through the ion exchange. The ion-exchange rate in the initial stage of adsorption was about the same as that of a commercial strong acid-type organic cation exchange resin. Highly selective uptake of Pu4+ has also been demonstrated in a simulated high level nuclear waste solution containing 0.5 M HNO3.

引用

页码：988 / 995

页数：8

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