ELUTION OF URANIUM FROM RESIN

Patent · Tue Mar 10 00:00:00 EST 1959

OSTI ID:4241816

McLEan, D C

A method is described for eluting uranium from anion exchange resins so as to decrease vanadium and iron contamination and permit recycle of the major portion of the eluats after recovery of the uranium. Diminution of vanadium and iron contamination of the major portion of the uranium is accomplished by treating the anion exchange resin, which is saturated with uranium complex by adsorption from a sulfuric acid leach liquor from an ore bearing uranium, vanadium and iron, with one column volume of eluant prepared by passing chlorine into ammonium hydroxide until the chloride content is about 1 N and the pH is about 1. The resin is then eluted with 8 to 9 column volumes of 0.9 N ammonium chloride--0.1 N hydrochloric acid solution. The eluants are collected separately and treated with ammonia to precipitate ammonium diuranate which is filtered therefrom. The uranium salt from the first eluant is contaminated with the major portion of ths vanadium and iron and is reworked, while the uranium recovered from the second eluant is relatively free of the undesirable vanadium and irons. The filtrate from the first eluant portion is discarded. The filtrate from the second eluant portion may be recycled after adding hydrochloric acid to increase the chloride ion concentration and adjust the pH to about 1.

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-13-015188
• Assignee: U.S. Atomic Energy Commission
• Patent Number(s): US 2877089
• OSTI ID: 4241816
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-59
• Country of Publication: United States
• Language: English

Related Subjects

CHEMISTRY
ACIDITY
ADSORPTION
AMMONIA
AMMONIUM COMPOUNDS
ANIONS
CHEMICALS
CHLORIDES
CHLORINE
COMPLEXES
DECONTAMINATION
DENSITY
EXTRACTION COLUMNS
FILTERS
GAS FLOW
GASES
GLASS
HYDROCHLORIC ACID
IMPURITIES
ION EXCHANGE
ION EXCHANGE MATERIALS
IRON
IRON COMPOUNDS
LEACHING
MEASURED VALUES
MIXING
OPERATION
ORE PROCESSING
PATENT
PHASE DIAGRAMS
PHOSPHATES
PHOSPHORUS OXIDES
PRECIPITATION
PREPARATION
QUANTITY RATIO
RECOVERY
REFINING
REFRACTION
SODIUM OXIDES
SOLUTIONS
SULFURIC ACID
URANATES
URANIUM
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM ORES
VANADIUM
VANADIUM COMPOUNDS
VOLUME
WATER