MANUFACTURE OF URANIUM AND URANIUM COMPOUND FROM PHOSPHORIC ACID

Japanese Patent JPS56100139

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, in the presence of FeII ions. The uraniferous phosphoric acid is brought into contact with an organic phase. The organic phase is composed 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 R1 and R2 denoting hydrogen or alkyl radicals and R3 alkyl radicals, the polyphosphate and/or metaphosphate residue having 2 to 10,000 P-Atoms per molecule and being of the straight-chain and/or link-chain or cyclic type. The uranium is transferred from the aqueous into the organic phase from which the uranium is reextracted in the know way.

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KURAUSU BERUTSU
ORAUSU FURANKENFUERUTO
RAINAA REEMAN
INGE TSUINTORU

JP18298880A

August 11, 1981

December 25, 1980

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OETKER RUDOLF AUGUST
URAN GMBH

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

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