发明名称 |
PROCEDE D'EXTRACTION D'URANIUM OU DES COMPOSES D'URANIUM A PARTIR DE L'ACIDE PHOSPHORIQUE |
摘要 |
<p>The invention concerns a method for the liquid/liquid extraction of uranium from phosphoric acid with the aid of alkylamine polyphosphate and/or alkylamine metaphosphate compounds, dissolved in organic solvents insoluble in water. The uraniferous phosphoric acid is brought into contact with an organic phase compound of a long-chain alkylamine polyphosphate and/or alkylamine metaphosphate compound and an organic solvent, the alkylamine in the alkyl residue containing 8 to 30, preferably 8 to 18 C-atoms corresponding to the formula <IMAGE> wherein R1 and R2 denote hydrogen or alkyl radicals and R3 denotes an alkyl radical, the polyphosphate and/or metaphosphate residue having 2 to 10,000 P-atoms per molecule and being of the straight-chain and/or linked-chain or cyclic chain type. The uranium is transferred from the aqueous into the organic phase from which the uranium is re-extracted in the known way.</p> |
申请公布号 |
MA19023(A1) |
申请公布日期 |
1981.07.01 |
申请号 |
MA19800019226 |
申请日期 |
1980.12.23 |
申请人 |
CHEMISCHE FABRIK BUDENHEIM RUDOLF A . OETKER |
发明人 |
K FRANKENFELD;K BELTZ;RAINER LEHMANN |
分类号 |
B01D11/04;C01B25/238;C01G43/00;C22B60/02 |
主分类号 |
B01D11/04 |
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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