PREPARATION OF HIGH PURITY UF$sub 4$
Abstract
S>A process for preparing very highly pure uranous tetrafluoride from impure uranium laden solvent extraction strip solutions, ion exchange process and resin-inpulp process eluate solutions which are at least 8M in hydrochloric acid is described. The process first comprises treating any of the above-mentioned solutions with a reducing agent to reduce the uranium to the + 4 oxidation state, and then contacting the reduced solution with an extractant phase comprising about 10 to 70% of tri-butyl phosphate in an organic solvent-diluent selected from benzene, ethyl-benzene, chlorobenzene, xylene, kerosene, or the like. The uranium is extracted into the extractant phase and is subsequently precipitated by treating the extractant with an aqueous fluoride solution. The highly pure uranous tetrafluoride precipitate is separated from the phases and recovered for subsequent utilization. (AEC)
- Inventors:
- Issue Date:
- OSTI Identifier:
- 4803170
- Patent Number(s):
- 3030175
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- NSA Number:
- NSA-16-013122
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-62
- Country of Publication:
- United States
- Language:
- English
- Subject:
- CHEMISTRY; BENZENE; BUTYL PHOSPHATES; ETHYL RADICALS; FLUORIDES; HYDROCARBONS; HYDROCHLORIC ACID; IMPURITIES; ION EXCHANGE; KEROSENE; ORGANIC CHLORINE COMPOUNDS; PRECIPITATION; PRODUCTION; REDUCTION; RESINS; SOLUTIONS; SOLVENT EXTRACTION; URANIUM TETRAFLUORIDE; XYLENE
Citation Formats
Magner, J E, Long, R S, Ellis, D A, and Grinstead, R R. PREPARATION OF HIGH PURITY UF$sub 4$. United States: N. p., 1962.
Web.
Magner, J E, Long, R S, Ellis, D A, & Grinstead, R R. PREPARATION OF HIGH PURITY UF$sub 4$. United States.
Magner, J E, Long, R S, Ellis, D A, and Grinstead, R R. Tue .
"PREPARATION OF HIGH PURITY UF$sub 4$". United States.
@article{osti_4803170,
title = {PREPARATION OF HIGH PURITY UF$sub 4$},
author = {Magner, J E and Long, R S and Ellis, D A and Grinstead, R R},
abstractNote = {S>A process for preparing very highly pure uranous tetrafluoride from impure uranium laden solvent extraction strip solutions, ion exchange process and resin-inpulp process eluate solutions which are at least 8M in hydrochloric acid is described. The process first comprises treating any of the above-mentioned solutions with a reducing agent to reduce the uranium to the + 4 oxidation state, and then contacting the reduced solution with an extractant phase comprising about 10 to 70% of tri-butyl phosphate in an organic solvent-diluent selected from benzene, ethyl-benzene, chlorobenzene, xylene, kerosene, or the like. The uranium is extracted into the extractant phase and is subsequently precipitated by treating the extractant with an aqueous fluoride solution. The highly pure uranous tetrafluoride precipitate is separated from the phases and recovered for subsequent utilization. (AEC)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1962},
month = {4}
}