skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A FLUID-BED PROCESS FOR THE DIRECT CONVERSION OF URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE

Abstract

A new, dry process for the production of UO/sub 2/ powder from UF/sub 6/ by fluidization and particle-coating techniques was developed. The process involves direct conversion of UF/sub 6/ to a solid, UO/sub 2/F/sub 2/, by hydrolysis with steam and the reduction of the UO/sub 2/F/sub 2/ to the dioxide by reaction with was carried out in 3-in.-dia. Monel reactors. In continuing studies, dense, spheroidal UO/sub 2/ particles in the range --20 +200 mesh are being prepared. A simultaneous (steam and H/sub 2/) reaction procedure at temperatures up to 7OO deg C is being used. Particle densities ranged to 9.75g/ cc or about 89% of theoretical. Sintering in H/sub 2/ at about 1700 deg C for 2.5 hr gave final densities of 10.4 to 16.6 g/cc or up to about 96.5% of theoretical density. (auth)

Authors:
; ;
Publication Date:
Research Org.:
Argonne National Lab., Ill.
Sponsoring Org.:
USDOE
OSTI Identifier:
4713414
Report Number(s):
ANL-6606
NSA Number:
NSA-17-018157
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Technical Report
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-63
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; CHEMICAL REACTIONS; COATING; COPPER ALLOYS; DENSITY; FLUIDIZATION; FLUORIDES; GRAIN SIZE; HIGH TEMPERATURE; HYDROGEN; HYDROLYSIS; MONEL; NICKEL ALLOYS; POWDER METALLURGY; POWDERS; PRODUCTION; REDUCTION; SINTERING; STEAM; URANIUM DIOXIDE; URANIUM HEXAFLUORIDE; URANYL COMPOUNDS; VESSELS

Citation Formats

Knudsen, I E, Hootman, H E, and Levitz, N M. A FLUID-BED PROCESS FOR THE DIRECT CONVERSION OF URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE. United States: N. p., 1963. Web. doi:10.2172/4713414.
Knudsen, I E, Hootman, H E, & Levitz, N M. A FLUID-BED PROCESS FOR THE DIRECT CONVERSION OF URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE. United States. doi:10.2172/4713414.
Knudsen, I E, Hootman, H E, and Levitz, N M. Fri . "A FLUID-BED PROCESS FOR THE DIRECT CONVERSION OF URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE". United States. doi:10.2172/4713414. https://www.osti.gov/servlets/purl/4713414.
@article{osti_4713414,
title = {A FLUID-BED PROCESS FOR THE DIRECT CONVERSION OF URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE},
author = {Knudsen, I E and Hootman, H E and Levitz, N M},
abstractNote = {A new, dry process for the production of UO/sub 2/ powder from UF/sub 6/ by fluidization and particle-coating techniques was developed. The process involves direct conversion of UF/sub 6/ to a solid, UO/sub 2/F/sub 2/, by hydrolysis with steam and the reduction of the UO/sub 2/F/sub 2/ to the dioxide by reaction with was carried out in 3-in.-dia. Monel reactors. In continuing studies, dense, spheroidal UO/sub 2/ particles in the range --20 +200 mesh are being prepared. A simultaneous (steam and H/sub 2/) reaction procedure at temperatures up to 7OO deg C is being used. Particle densities ranged to 9.75g/ cc or about 89% of theoretical. Sintering in H/sub 2/ at about 1700 deg C for 2.5 hr gave final densities of 10.4 to 16.6 g/cc or up to about 96.5% of theoretical density. (auth)},
doi = {10.2172/4713414},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1963},
month = {2}
}