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Title: ELUTION OF URANIUM FROM RESIN

Abstract

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 addingmore » hydrochloric acid to increase the chloride ion concentration and adjust the pH to about 1.« less

Inventors:
Issue Date:
OSTI Identifier:
4241816
Patent Number(s):
2877089
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
NSA Number:
NSA-13-015188
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-59
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

McLEan, D C. ELUTION OF URANIUM FROM RESIN. United States: N. p., 1959. Web.
McLEan, D C. ELUTION OF URANIUM FROM RESIN. United States.
McLEan, D C. Tue . "ELUTION OF URANIUM FROM RESIN". United States.
@article{osti_4241816,
title = {ELUTION OF URANIUM FROM RESIN},
author = {McLEan, D C},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {3}
}