Thermodynamic modeling of the in situ leaching of uranium

被引：0
|
作者：
A. M. Pastukhov
V. N. Rychkov
S. Yu. Skripchenko
机构：
[1] Ural Federal University,Department of Rare Metals and Nanomaterials, Institute of Physics and Technology
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2015年 / 303卷
关键词：
Uranium in situ leaching; Thermodynamic model; Oxidation–reduction reactions; Artificial oxidizers;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The thermodynamic model of uranium in situ leaching process at the stage of acidification was investigated. It was demonstrated that in the frontal zone of acid leaching solutions reduction of U(VI) up to U(IV) was possible due to the behavior of oxidation–reduction processes with the ferrous ions involved. At the same time uranium is precipitated as U(OH)4. In order to eliminate the negative influence of ferrous iron ions, artificial oxidizers were proposed to be used not only at the stage of active leaching of cells but also at acidification stage of new process cells.
引用
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页码：2053 / 2057
页数：4
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