Title: PROCESS FOR RECOVERING URANIUM FROM AQUEOUS PHOSPHORIC ACID LIQUORS

Abstract

A liquid-liquid extraction method is given for recovering uranium values from aqueous solutions. An acidic aqueous solution containing uranium values is contacted with an organic phase comprising an organic diluent and the reaction product of phosphorous pentoxide and a substantially pure dialkylphosphoric acid. The uranium values are transferred to the organic phase even from aqueous solutions containing a high concentration of strong uranium complexing agents such as phosphate ions. (AEC)

Inventors:

Schmitt, J M

Issue Date:

1962-09-01

OSTI Identifier:

4784634

Patent Number(s):

3052514

Assignee:

U.S. Atomic Energy Commission

Patent Classifications (CPCs):

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07F - ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM

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C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS

C22B60/026 - {liquid-liquid extraction with or without dissolution in organic solvents}

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07F - ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM

C07F9/098 - {Esters of polyphosphoric acids or anhydrides}
C07F9/30 - Phosphinic acids R2P
C07F9/40 - Esters thereof

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NSA Number:

NSA-16-030488

Resource Type:

Patent

Resource Relation:

Other Information: Orig. Receipt Date: 31-DEC-62

Country of Publication:

United States

Language:

English

Subject:

CHEMISTRY; ALKYL RADICALS; ORGANIC PHOSPHORUS COMPOUNDS; PHOSPHORIC ACID; PHOSPHORUS OXIDES; REPROCESSING; SOLUTIONS; SOLVENT EXTRACTION; URANIUM; URANIUM COMPLEXES; WATER