MANUFACTURE OF URANIUM AND URANIUM COMPOUND FROM PHOSPHORIC ACID

Japanese Patent JPS56100140

A

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 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.

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KURAUSU BERUTSU
KURAUSU FURANKENFUERUTO
RAINAA REEMAN
INGE TSUINTORU

JP18418080A

August 11, 1981

December 26, 1980

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OETKER RUDOLF AUGUST
URAN GMBH

B01D11/04; C01B25/238; C01G43/00; C22B60/02; (IPC1-7): B01D11/04; C01B25/237; C01G43/00; C22B60/02

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