Optimisation of uranium-radium co-leaching from uranium ore

被引：7

作者：

Bai, Zixuan ^{[1
]}

Zhao, Xiaosheng ^{[2
]}

Zhang, Jun ^{[2
]}

Wu, Fangfang ^{[1
]}

Tang, Quan ^{[1
]}

机构：

[1] Univ South China, Sch Nucl Sci & Technol, 28 Changshengxi Rd, Hengyang, Peoples R China

[2] Chengdu New Radiomed Technol Co Ltd, 999,Muhua Rd 2nd Sect, Chengdu, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2023年 / 332卷 / 06期

关键词：

Uranium ore; Acid leaching; Co-leaching; Leaching rate; RA-226; IMPACT;

D O I：

10.1007/s10967-023-08892-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

To improve the utilisation of uranium resources while reducing the radioactive contamination of uranium slag by Ra-226, the effects of various factors on uranium-radium co-leaching from uranium ore were investigated. For nitric acid agitation leaching, the optimal performance was achieved using 80 mesh ore in 4 mol L-1 nitric acid at 40 degrees C for 4 h with a liquid-to-solid ratio of 3. Under these conditions, the uranium leaching rate was > 99% and the radium leaching rate was > 93% with standard deviations of < 0.04% and < 0.7%, respectively. Thus, this approach realises simultaneous uranium and radium leaching at high rates.

引用

页码：1841 / 1845

页数：5

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