发明名称 |
Recovery of uranium from wet process phosphoric acid by liquid-solid ion exchange. |
摘要 |
<p>Recovery of uranium from crude wet process phosphoric acid (WPA) by cation exchange using as cation exchanger a resin comprising active amino phosphonic or hydroxy phosphonic groups linked to a matrix. The operational steps comprise reduction of uranium in the WPA to the tetravalent state, contacting the WPAwith the cation exchange resin to load the latter with tetravalent uranium, displacing Fe<Sup>+2</Sup> from the resin, washing the resin with aqueous ammonia, eluting the resin with a carbonate-bicarbonate solution and precipitating uranium from the eluate.</p> |
申请公布号 |
EP0132902(A2) |
申请公布日期 |
1985.02.13 |
申请号 |
EP19840300934 |
申请日期 |
1984.02.14 |
申请人 |
THE STATE OF ISRAEL ATOMIC ENERGY COMMISSION NUCLEAR RESEARCH CENTER NEGEV |
发明人 |
KETZINEL, ZVI;VOLKMAN, YGAL;HASSID, MOSHE |
分类号 |
C01G43/00;B01J45/00;C01B25/238;C22B60/02;(IPC1-7):C22B60/02 |
主分类号 |
C01G43/00 |
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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