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Title: URANIUM RECOVERY PROCESS

Abstract

A process of recovering uranium from very low-grade ore residues is described. These low-grade uraniumcontaining hydroxide precipitates, which also contain hydrated silica and iron and aluminum hydroxides, are subjected to multiple leachings with aqueous solutions of sodium carbonate at a pH of at least 9. This leaching serves to selectively extract the uranium from the precipitate, but to leave the greater part of the silica, iron, and aluminum with the residue. The uranium is then separated from the leach liquor by the addition of an acid in sufficient amount to destroy the carbonate followed by the addition of ammonia to precipitate uranium as ammonium diuranate.

Inventors:
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4330487
Patent Number(s):
2830871
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-12-014392
NSA Number:
NSA-12-014392
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English
Subject:
PATENTS; ACIDS; ALUMINUM HYDROXIDES; AMMONIA; AMMONIUM COMPOUNDS; DECOMPOSITION; HYDROXIDES; IRON HYDROXIDES; LEACHING; PATENT; PRECIPITATION; RECOVERY; RESIDUES; SEPARATION PROCESSES; SILICON OXIDES; SODIUM CARBONATES; SOLUTIONS; URANATES; URANIUM; WATER

Citation Formats

Kaufman, D. URANIUM RECOVERY PROCESS. United States: N. p., 1958. Web.
Kaufman, D. URANIUM RECOVERY PROCESS. United States.
Kaufman, D. Tue . "URANIUM RECOVERY PROCESS". United States.
@article{osti_4330487,
title = {URANIUM RECOVERY PROCESS},
author = {Kaufman, D.},
abstractNote = {A process of recovering uranium from very low-grade ore residues is described. These low-grade uraniumcontaining hydroxide precipitates, which also contain hydrated silica and iron and aluminum hydroxides, are subjected to multiple leachings with aqueous solutions of sodium carbonate at a pH of at least 9. This leaching serves to selectively extract the uranium from the precipitate, but to leave the greater part of the silica, iron, and aluminum with the residue. The uranium is then separated from the leach liquor by the addition of an acid in sufficient amount to destroy the carbonate followed by the addition of ammonia to precipitate uranium as ammonium diuranate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1958},
month = {4}
}