发明名称 |
Ionic liquids as solvents |
摘要 |
A method of dissolving in an ionic liquid a metal in an initial oxidation state below its maximum oxidation state, characterized in that the ionic liquid reacts with the metal and oxidizes it to a higher oxidation state. The initial metal may be in the form of a compound thereof and may be irradiated nuclear fuel comprising UO2 and/or PuO2 as well as fission products. The ionic liquid typically is nitrate-based, for example a pyridinium or substituted imidazolium nitrate, and contains a Bronstead or Franklin acid to increase the oxidizing power of the nitrate. Suitable acids are HNO3, H2SO4 and [NO+]. Imidazolium nitrates and certain pyridinium nitrates form one aspect of the invention. |
申请公布号 |
ZA9706868(B) |
申请公布日期 |
1999.03.31 |
申请号 |
ZA19970006868 |
申请日期 |
1997.08.01 |
申请人 |
BRITISH NUCLEAR FUELS PLC. |
发明人 |
MARK FIELDS;GRAHAM VICTOR HUTSON;KENNETH RICHARD SEDDON;CHARLES MCINTOSH GORDON |
分类号 |
G21C19/46;C01G43/00;C01G56/00;C07D213/20;C07D233/58;G21C19/48;G21F9/28 |
主分类号 |
G21C19/46 |
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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