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Title: Method for cleaning solution used in nuclear-fuel reprocessing. [DOE patent application]

Abstract

A nuclear fuel processing solution containing: (1) hydrocarbon diluent; (2) tri-n-butyl phosphate or tri-2-ethylhexyl phosphate; and (3) monobutyl phosphate, dibutyl phosphate, mono-2-ethylhexyl phosphate, di-2-ethylhexyl phosphate, or a complex formed by plutonium, uranium, or a fission product thereof with monobutyl phosphate, dibutyl phosphate, mono-2-ethylhexyl phosphate, or di-2-ethylhexyl phosphate is contacted with silica gel having alkali ions absorbed thereon to remove any degradation products from said solution. The principal impurities removed from TBP solvent by the process of this invention are monobutyl phosphate, dibutyl phosphate, UO/sub 2//sup 2 +/, Pu/sup 4 +/, and fission products of plutonium and uranium complexed with monobutyl phosphate or dibutyl phosphate. Nitric acid is also removed from the TBP solution by the treated silica gel. Conventional adsorption column techniques are applicable for the process of the invention.

Inventors:
; ;
Publication Date:
OSTI Identifier:
5367122
Application Number:
ON: DE82011704
Assignee:
Dept. of Energy
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; BUTYL PHOSPHATES; REMOVAL; DBP; RECYCLING; FISSION PRODUCTS; NITRIC ACID; PHOSPHORIC ACID ESTERS; PLUTONIUM COMPLEXES; SILICA GEL; SORPTIVE PROPERTIES; TBP; URANYL COMPLEXES; ADSORPTION; IMPURITIES; LITHIUM HYDROXIDES; REPROCESSING; SODIUM HYDROXIDES; SPENT FUELS; ACTINIDE COMPLEXES; ADSORBENTS; ALKALI METAL COMPOUNDS; COMPLEXES; ENERGY SOURCES; ESTERS; FUELS; HYDROGEN COMPOUNDS; HYDROXIDES; INORGANIC ACIDS; ISOTOPES; LITHIUM COMPOUNDS; MATERIALS; NUCLEAR FUELS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; RADIOACTIVE MATERIALS; REACTOR MATERIALS; SEPARATION PROCESSES; SODIUM COMPOUNDS; SORPTION; SURFACE PROPERTIES; TRANSURANIUM COMPLEXES; URANIUM COMPLEXES; 050800* - Nuclear Fuels- Spent Fuels Reprocessing

Citation Formats

Tallent, O K, Dodson, K E, and Mailen, J C. Method for cleaning solution used in nuclear-fuel reprocessing. [DOE patent application]. United States: N. p., 1981. Web.
Tallent, O K, Dodson, K E, & Mailen, J C. Method for cleaning solution used in nuclear-fuel reprocessing. [DOE patent application]. United States.
Tallent, O K, Dodson, K E, and Mailen, J C. Tue . "Method for cleaning solution used in nuclear-fuel reprocessing. [DOE patent application]". United States. https://www.osti.gov/servlets/purl/5367122.
@article{osti_5367122,
title = {Method for cleaning solution used in nuclear-fuel reprocessing. [DOE patent application]},
author = {Tallent, O K and Dodson, K E and Mailen, J C},
abstractNote = {A nuclear fuel processing solution containing: (1) hydrocarbon diluent; (2) tri-n-butyl phosphate or tri-2-ethylhexyl phosphate; and (3) monobutyl phosphate, dibutyl phosphate, mono-2-ethylhexyl phosphate, di-2-ethylhexyl phosphate, or a complex formed by plutonium, uranium, or a fission product thereof with monobutyl phosphate, dibutyl phosphate, mono-2-ethylhexyl phosphate, or di-2-ethylhexyl phosphate is contacted with silica gel having alkali ions absorbed thereon to remove any degradation products from said solution. The principal impurities removed from TBP solvent by the process of this invention are monobutyl phosphate, dibutyl phosphate, UO/sub 2//sup 2 +/, Pu/sup 4 +/, and fission products of plutonium and uranium complexed with monobutyl phosphate or dibutyl phosphate. Nitric acid is also removed from the TBP solution by the treated silica gel. Conventional adsorption column techniques are applicable for the process of the invention.},
doi = {},
url = {https://www.osti.gov/biblio/5367122}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {5}
}