Extraction of Uranyl Tricarbonate Complex by Clay Materials from Aqueous Solutions

被引：1

作者：

Krasavina, E. P. ^{[1
]}

Martynov, K. V. ^{[1
]}

Arzumanova, K. G. ^{[1
]}

Bessonov, A. A. ^{[1
]}

Gordeev, A. V. ^{[1
]}

Bomchuk, A. Yu. ^{[1
]}

Zharkova, V. O. ^{[1
]}

Kulyukhin, S. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia

来源：

RADIOCHEMISTRY | 2024年 / 66卷 / 03期

关键词：

kaolin clays; bentonite clays; uranyl tricarbonate complex; solutions; sorption; filtration; SURFACE-AREA; ADSORPTION; MINERALS;

D O I：

10.1134/S1066362224030068

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The extraction of the tricarbonate complex of uranyl [UO2(CO3)(3)](4-) from aqueous solutions on clay powders from kaolin clays of the Kampanovskoye deposit and from bentonite clays of the 10th Khutor and Dinozavrovoe deposits, as well as their mixtures, was investigated. The studies were carried out with clay powders, both untreated and treated with water, 0.5 M Na2CO3 and NaNO3 solutions, and 2 M NaOH solutions. It was shown that the [UO2(CO3)(3)](4-) complex is not sorbed on clay materials from aqueous solutions under static conditions. The filtration of an aqueous solution of [UO2(CO3)(3)](4-) through columns with clay mixtures was established to enable the extraction up to 87% of uranium from the amount passed through the column.

引用

页码：334 / 343

页数：10

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