The solubility of uranium hexafluoride in perfluoroethers
The polyperfluoroethers are compatible with uranium hexafluoride (UF/sub 6/) and are suitable for use in diffusion pumps and in mechanical vacuum pumps which rely on oil as both the lubricant and the seal. The UF/sub 6/ is soluble in all fluids with which it is compatible. Because a number of vacuum pumps in the BOP facilities of the GCEP plant employ these perfluoroether oils as the working fluid and have oil chambers which are large, questions have been raised as to the relationships governing the solubility of UF/sub 6/ in these materials and the maximum quantities of UF/sub 6/ which could be dissolved in these oils under credible accident conditions. This report summarizes these solubility relations and the interaction of the UF/sub 6/ solubility and the pumping capability of this type of vacuum pump. It will be shown that, whereas the solubility of UF/sub 6/ in Fomblin Y25 fluoroether fluid under a UF/sub 6/ pressure of 760 torr and at the pump operating temperature of 160/sup 0/F is about 500 g of UF/sub 6/ per liter of oil, the system controls are such as to isolate the system from the pumps before the quantity of UF/sub 6/ dissolved in the perfluoroether exceeds about 10 g of UF/sub 6/ per liter of oil. 13 refs., 7 figs.
- Research Organization:
- Oak Ridge Gaseous Diffusion Plant (K-25), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OT21400
- OSTI ID:
- 7194413
- Report Number(s):
- K/PS-798; ON: DE87002525
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ETHERS
COMPATIBILITY
SOLVENT PROPERTIES
FLUORINE COMPOUNDS
URANIUM HEXAFLUORIDE
SOLUBILITY
COMPARATIVE EVALUATIONS
EXPERIMENTAL DATA
LUBRICATING OILS
MATHEMATICAL MODELS
THERMODYNAMICS
VACUUM PUMPS
ACTINIDE COMPOUNDS
DATA
EQUIPMENT
FLUORIDES
HALIDES
HALOGEN COMPOUNDS
INFORMATION
LABORATORY EQUIPMENT
LUBRICANTS
NUMERICAL DATA
OILS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PUMPS
URANIUM COMPOUNDS
URANIUM FLUORIDES
400702* - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials
400201 - Chemical & Physicochemical Properties