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Title: Multiple gas streams in the post oxidation step in a process for converting uranium hexafluoride to uranium oxide rich compositions

Abstract

This invention presents a process for conversion of gaseous uranium hexafluoride to an oxide product of uranium by introducing to a reaction zone in the presence of an active flame maintained in the reaction zone a first gaseous reactant comprising a mixture of uranium hexafluoride and an oxygen-containing gas and a second gaseous reactant comprising a reducing gas and temporarily separating the first and second gaseous reactants with a shielding gas which temporarily prevents substantial mixing and reaction between these gaseous reactants. The first and second gaseous reactants ultimately react in a primary flame to give a particulate uranium dioxide rich composition and residual reducing gas. An oxygen-containing gas as a third gaseous reactant is introduced through multiple downstream inlets with the inlet closest to the primary flame being at a location in the reaction zone where the uranium hexafluoride conversion to the uranium dioxide rich composition is substantially complete. Another embodiment of the process has the first gaseous reactant comprised of a mixture of uranium hexafluoride and a reducing gas and the second gaseous reactant comprised of an oxygen-containing gas. These processes result in oxidizing the uranium dioxide rich composition to a higher oxide of uranium with conversion ofmore » the residual reducing gas to its oxidized form.« less

Inventors:
;
Publication Date:
OSTI Identifier:
7150124
Patent Number(s):
US 3970581
Application Number:
TRN: 76-021747
Assignee:
General Electric Co.
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 12 May 1975
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; URANIUM DIOXIDE; OXIDATION; URANIUM HEXAFLUORIDE; CONVERSION; URANIUM OXIDES; PRODUCTION; CHEMICAL REACTIONS; ECONOMICS; FLAMES; FLUORINE; GASES; NUCLEAR FUELS; REMOVAL; TEMPERATURE CONTROL; ACTINIDE COMPOUNDS; CHALCOGENIDES; CONTROL; ELEMENTS; ENERGY SOURCES; FLUIDS; FLUORIDES; FLUORINE COMPOUNDS; FUELS; HALIDES; HALOGEN COMPOUNDS; HALOGENS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; REACTOR MATERIALS; URANIUM COMPOUNDS; URANIUM FLUORIDES; 050400* - Nuclear Fuels- Feed Processing; 400702 - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials; 050700 - Nuclear Fuels- Fuels Production & Properties; 400800 - Combustion, Pyrolysis, & High-Temperature Chemistry

Citation Formats

Jeter, D W, and Keith, W G. Multiple gas streams in the post oxidation step in a process for converting uranium hexafluoride to uranium oxide rich compositions. United States: N. p., 1976. Web.
Jeter, D W, & Keith, W G. Multiple gas streams in the post oxidation step in a process for converting uranium hexafluoride to uranium oxide rich compositions. United States.
Jeter, D W, and Keith, W G. Tue . "Multiple gas streams in the post oxidation step in a process for converting uranium hexafluoride to uranium oxide rich compositions". United States.
@article{osti_7150124,
title = {Multiple gas streams in the post oxidation step in a process for converting uranium hexafluoride to uranium oxide rich compositions},
author = {Jeter, D W and Keith, W G},
abstractNote = {This invention presents a process for conversion of gaseous uranium hexafluoride to an oxide product of uranium by introducing to a reaction zone in the presence of an active flame maintained in the reaction zone a first gaseous reactant comprising a mixture of uranium hexafluoride and an oxygen-containing gas and a second gaseous reactant comprising a reducing gas and temporarily separating the first and second gaseous reactants with a shielding gas which temporarily prevents substantial mixing and reaction between these gaseous reactants. The first and second gaseous reactants ultimately react in a primary flame to give a particulate uranium dioxide rich composition and residual reducing gas. An oxygen-containing gas as a third gaseous reactant is introduced through multiple downstream inlets with the inlet closest to the primary flame being at a location in the reaction zone where the uranium hexafluoride conversion to the uranium dioxide rich composition is substantially complete. Another embodiment of the process has the first gaseous reactant comprised of a mixture of uranium hexafluoride and a reducing gas and the second gaseous reactant comprised of an oxygen-containing gas. These processes result in oxidizing the uranium dioxide rich composition to a higher oxide of uranium with conversion of the residual reducing gas to its oxidized form.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {7}
}