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Title: Process for recovering uranium

Abstract

A process useful in recovering uranium from deposits on stainless steel liner surfaces of calutrons is presented. The deposit is removed from the stainless steel surface by washing with aqueous nitric acid. The solution obtained containing uranium, chromium, nickel, copper, and iron is treated with an excess of ammonium hydroxide to precipitnte the uranium, iron, and chromium and convert the nickel and copper to soluble ammonio complexions. The precipitated material is removed, dried and treated with carbon tetrachloride at an elevated temperature of about 500 to 600 deg C to form a vapor mixture of UCl/ sub 4/, UCl/sub 5/, FeCl/sub 3/, and CrCl/sub 4/. The UCl/sub 4/ is separated from this vapor mixture by selective fractional condensation at a temperature of about 500 to 400 deg C.

Inventors:
; ;
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4206040
Patent Number(s):
2,879,130
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-13-022160
NSA Number:
NSA-13-022160
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-59
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; AMMONIA; BERYLLIUM OXIDES; CALUTRON; CARBON TETRACHLORIDE; CHEMICAL REACTIONS; CHEMICALS; CHROMIUM; CHROMIUM CHLORIDES; CHROMIUM COMPOUNDS; CHROMIUM NITRATES; COMPLEXES; CONDENSERS; CONTROL; COPPER; COPPER COMPOUNDS; COPPER NITRATES; CRACKS; CYLINDERS; DECONTAMINATION; DISTILLATION; FAILURES; FILMS; FILTERS; HEAT TREATMENTS; HIGH TEMPERATURE; IMPURITIES; INSTRUMENTS; IRON CHLORIDES; IRON; IRON COMPOUNDS; IRON NITRATES; ISOTOPE SEPARATION; LEACHING; LIQUEFYING; MASS SPECTROMETERS; MATERIALS TESTING; MIXING; NICKEL; NICKEL COMPOUNDS; NICKEL NITRATES; NITRIC ACID; NUMERICALS; OPERATION; PATENT; PRECIPITATION; QUENCHING; REACTORS; RECOVERY; SEPARATION PROCESSES; SOLIDIFICATION; SOLIDS; SOLUBILITY; SOLUTIONS; STAINLESS STEELS; SURFACES; TEMPERATURE; TENSILE PROPERTIES; THERMAL; URANIUM; URANIUM CHLORIDES; URANIUM COMPOUNDS; VAPORS; WATER

Citation Formats

MacWood, G. E., Wilder, C. D., and Altman, D. Process for recovering uranium. United States: N. p., 1959. Web.
MacWood, G. E., Wilder, C. D., & Altman, D. Process for recovering uranium. United States.
MacWood, G. E., Wilder, C. D., and Altman, D. Tue . "Process for recovering uranium". United States. https://www.osti.gov/servlets/purl/4206040.
@article{osti_4206040,
title = {Process for recovering uranium},
author = {MacWood, G. E. and Wilder, C. D. and Altman, D.},
abstractNote = {A process useful in recovering uranium from deposits on stainless steel liner surfaces of calutrons is presented. The deposit is removed from the stainless steel surface by washing with aqueous nitric acid. The solution obtained containing uranium, chromium, nickel, copper, and iron is treated with an excess of ammonium hydroxide to precipitnte the uranium, iron, and chromium and convert the nickel and copper to soluble ammonio complexions. The precipitated material is removed, dried and treated with carbon tetrachloride at an elevated temperature of about 500 to 600 deg C to form a vapor mixture of UCl/ sub 4/, UCl/sub 5/, FeCl/sub 3/, and CrCl/sub 4/. The UCl/sub 4/ is separated from this vapor mixture by selective fractional condensation at a temperature of about 500 to 400 deg C.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {3}
}

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