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Title: Process for producing uranium oxide rich compositions from uranium hexafluoride using fluid injection into the reaction zone

Abstract

An improved process for the conversion of gaseous uranium hexafluoride to a uranium oxide rich composition in the presence of an active flame in a reaction zone is achieved by introducing a first gaseous reactant comprising a mixture of uranium hexafluoride and a oxygen-containing carrier gas and a second gaseous reactant comprising a reducing gas, the reactants being separated by a shielding gas as introduced to the reaction zone. The shielding gas temporarily separates the gaseous reactants and temporarily prevents substantial mixing and reacting of the gaseous reactants. The flame occurring in the reaction zone is maintained away from contact with the inlet introducing the mixture to the reaction zone. The process also includes introducing an oxygen-containing gas as a third gaseous reactant at a time when the uranium hexafluoride conversion to uranium dioxide is substantially complete resulting in oxidizing the uranium oxide composition to a higher oxide of uranium and conversion of the residual reducing gas to its oxidized form. During the process there is practiced the improvement of introducing an atomized fluid having a high latent heat of evaporation so that the atomized fluid directly enters the reaction zone and the introduction can be made at a locationmore » so that the atomized fluid enters the primary flame, the secondary flame, or both the primary and secondary flames, or downstream from the secondary flame. The atomized fluid can be introduced alone or with a carrier gas such as an oxygen-containing gas.« less

Inventors:
; ; ;
Publication Date:
OSTI Identifier:
7322615
Patent Number(s):
US 4031029
Application Number:
TRN: 77-014270
Assignee:
General Electric Co.
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 2 Jul 1975
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 36 MATERIALS SCIENCE; URANIUM OXIDES; PRODUCTION; FLUID INJECTION; NUCLEAR FUELS; URANIUM HEXAFLUORIDE; ACTINIDE COMPOUNDS; CHALCOGENIDES; ENERGY SOURCES; FLUORIDES; FLUORINE COMPOUNDS; FUELS; HALIDES; HALOGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; REACTOR MATERIALS; URANIUM COMPOUNDS; URANIUM FLUORIDES; 050400* - Nuclear Fuels- Feed Processing; 360201 - Ceramics, Cermets, & Refractories- Preparation & Fabrication

Citation Formats

Colter, J C, James, D B, Keith, W G, and Akbari-Kenari, R. Process for producing uranium oxide rich compositions from uranium hexafluoride using fluid injection into the reaction zone. United States: N. p., 1977. Web.
Colter, J C, James, D B, Keith, W G, & Akbari-Kenari, R. Process for producing uranium oxide rich compositions from uranium hexafluoride using fluid injection into the reaction zone. United States.
Colter, J C, James, D B, Keith, W G, and Akbari-Kenari, R. Tue . "Process for producing uranium oxide rich compositions from uranium hexafluoride using fluid injection into the reaction zone". United States.
@article{osti_7322615,
title = {Process for producing uranium oxide rich compositions from uranium hexafluoride using fluid injection into the reaction zone},
author = {Colter, J C and James, D B and Keith, W G and Akbari-Kenari, R},
abstractNote = {An improved process for the conversion of gaseous uranium hexafluoride to a uranium oxide rich composition in the presence of an active flame in a reaction zone is achieved by introducing a first gaseous reactant comprising a mixture of uranium hexafluoride and a oxygen-containing carrier gas and a second gaseous reactant comprising a reducing gas, the reactants being separated by a shielding gas as introduced to the reaction zone. The shielding gas temporarily separates the gaseous reactants and temporarily prevents substantial mixing and reacting of the gaseous reactants. The flame occurring in the reaction zone is maintained away from contact with the inlet introducing the mixture to the reaction zone. The process also includes introducing an oxygen-containing gas as a third gaseous reactant at a time when the uranium hexafluoride conversion to uranium dioxide is substantially complete resulting in oxidizing the uranium oxide composition to a higher oxide of uranium and conversion of the residual reducing gas to its oxidized form. During the process there is practiced the improvement of introducing an atomized fluid having a high latent heat of evaporation so that the atomized fluid directly enters the reaction zone and the introduction can be made at a location so that the atomized fluid enters the primary flame, the secondary flame, or both the primary and secondary flames, or downstream from the secondary flame. The atomized fluid can be introduced alone or with a carrier gas such as an oxygen-containing gas.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {6}
}