发明名称 |
Process for recovering uranium and/or thorium from a liquid containing uranium and/or thorium |
摘要 |
A process for recovering uranium and/or thorium from a liquid containing uranium and/or thorium is disclosed, which comprises capturing the uranium and/or thorium in the liquid by an amorphous silica precipitate formed by adding water glass to the liquid, making the captured uranium and/or thorium eluted from the precipitate by acid-treatment, recovering the eluted uranium and/or thorium as an acidic solution, and regenerating the precipitate to water glass by use of an alkali metal hydroxide solution. Thus, the uranium and/or thorium can be recovered in high yield and the amorphous silica precipitate, that is, a formed radioactive solid waste can be remarkably reduced.
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申请公布号 |
US4349513(A) |
申请公布日期 |
1982.09.14 |
申请号 |
US19800146214 |
申请日期 |
1980.05.05 |
申请人 |
MITSUBISHI KINZOKU KABUSHIKI KAISHA |
发明人 |
ISHIWATA, SHOJI;KURODA, YASUO;TANAKA, SHOICHI;WATANABE, TSUNEO;HASEGAWA, SHINICHI |
分类号 |
B01J20/10;C01B33/32;C01F15/00;C01G43/00;C22B60/02;G21F9/06;G21F9/10;(IPC1-7):C01G56/00 |
主分类号 |
B01J20/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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