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U.S. Department of Energy
Office of Scientific and Technical Information

PROCESS FOR SELECTIVE EXTRACTION OF NITRATES FROM AQUEOUS NITRATE-SULFATE SOLUTIONS

Patent ·
OSTI ID:4834102
A process is described for the extraction of nitrate from an aqueous acidic solution containing sulfate. The process consists of intimately contacting the solution with at least one water-insoluble amino compound in the liquid phase whereby the amino compound selectively extracts nitrate from the solution. A quaternary ammonium compound may be used instead of the amino compound. The compounds are a primary, secondary, or tertiary amine having a molecular weight of at least 185, the quaternary compound also has a molecular weight of 185. The amino compounds employed are dodecylbenzyl t-dodecylamine, dodecenyl t-dodecylamine, tridodecenylamine, or dodecylbenzyl di-nbutylamine. The quaternary compound is dodecenyl trimethyl ammonium chloride. This process has particular value in the cyclic uranium recovery process for decreasing cost by saving of the nitrate solutions. (N.W.R.)
Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-15-030782
OSTI ID:
4834102
Report Number(s):
GB 878244
Country of Publication:
United Kingdom
Language:
English