Uranium leaching using citric acid and oxalic acid

被引：14
|
作者：
Xu, Lingling [1 ,2 ]
Yang, Hongying [1 ]
Liu, Yajie [2 ]
Zhou, Yipeng [2 ]
机构：
[1] Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China
[2] East China Univ Technol, Sch Water Resource & Environm Engn, Nanchang 330013, Jiangxi, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2019年 / 321卷 / 03期
关键词：
Uranium leaching; Citric acid; Oxalic acid; Organic acid-producing fungi; ASPERGILLUS-NIGER; ORE; PH;
D O I：
10.1007/s10967-019-06673-9
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Citric acid and oxalic acid, the main metabolites of fungi, have different leaching effects on uranium ore. Herein, uranium leaching from a volcano-litho-type uranium ore using citric acid and oxalic acid was studied by performing soaking experiments in incubator shakers using pure water and H2SO4 as controls. The citric acid is advantageous over oxalic acid in terms of the uranium leaching rate (97% and 67%) and speed for 20 days of leaching. These findings will help optimize the isolation and cultivation conditions of organic acid-producing fungi used for uranium leaching.
引用
收藏
页码：815 / 822
页数：8
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