ANIONIC EXCHANGE PROCESS FOR THE RECOVERY OF URANIUM AND VANADIUM FROM CARBONATE SOLUTIONS

Patent · Tue Dec 16 00:00:00 EST 1958

OSTI ID:4273652

Bailes, R H; Ellis, D A; Long, R S

Uranium and vanadium can be economically purified and recovered from non- salt roast carbonate leach liquors by adsorption on a strongly basic anionic exchange resin and subsequent selective elution by one of three alternative methods. Method 1 comprises selectively eluting uranium from the resin with an ammonium sulfate solution followed by eluting vanadium from the resin with either 5 M NaCl, saturated (NH/sub 4/)/sub 2/CO/sub 3/, saturated NaHCO/sub 3/, 1 M NaOH, or saturated S0/sub 2/ solutions. Method II comprises selectively eluting vanadium from the resin with either concentrated NaCl or S0/sub 2/ solutions subsequent to pretreatment of the column with either S0/sub 2/ gas, 1 N HCl, or 0.1 N H/sub 2/8O/sub 4/ followed by eluting uranium from the resin with solutions containing 0.9 M NH/sub 4/Cl or NaCl and 0.1 Cl. Method III comprises flowing the carbonate leac solutlon through a first column of a strongly basic anlonlc exchange resin untll vanadium breakthrough occurs, so that the effluent solution is enriched ln uranium content and the vanadium is chiefly retalned by the resln, absorbing the uranlum from the enriched effluent solution on a second column of a strongly basic anionic exchange resin, pretreating the first column with either 0.1 N HCl, 0.1 H/sub 2/SO/sub 4/, C0/sub 2/ gas, or ammonium sulfate, selectively eluting the vanadlum from the column with saturated S0/sub 2/ solution, pretreatlng the second column with either 0.1 N HCl or S0/sub 2/ gas, selectively eluting residual vanadium from the column with saturated S0/sub 2/ solution, and then eluting the uranium from the column with either 0.1 N HCl and 1 N NaCl orO.l N HCl and 1 N NH/sub 4/Cl.

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-13-008434
• Assignee: U.S. Atomic Energy Commission
• Patent Number(s): US 2864667
• OSTI ID: 4273652
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-59
• Country of Publication: United States
• Language: English

Related Subjects

PATENTS
ABSORPTION- ADSORPTION- AMMONIUM COMPOUNDS- ANIONS- CARBON DIOXIDE- CARBONATES- CHLORIDES- ENRICHMENT- EXTRACTION COLUMNS- GASES- HYDROCHLORIC ACID- HYDROXIDES- ION EXCHANGE- ION EXCHANGE MATERIALS- LEACHING- LIQUID FLOW- LIQUIDS- QUANTITY RATIO- RECOVERY- RESINS- SODIUM CARBONATES- SODIUM CHLORIDES- SOLUTIONS- SULFATES- SULFUR OXIDES- SULFURIC ACID- URANIUM- VANADIUM
ABSORPTION- ADSORPTION- AMMONIUM COMPOUNDS- ANIONS- CARBON DIOXIDE- CARBONATES- CHLORIDES- ENRICHMENT- EXTRACTION COLUMNS- GASES- HYDROCHLORIC ACID- HYDROXIDES- ION EXCHANGE- ION EXCHANGE MATERIALS- LEACHING- LIQUIDS- QUANTITY RATIO-