Liquid-phase compositions from vapor-phase analyses: 4, Preliminary comparisons of calculations with experimental data on N/sub 2/, O/sub 2/, F/sub 2/, SiF/sub 4/, and ClF/sub 3/ in UF/sub 6/
Currently, liquid-phase samples from uranium hexafluoride (UF/sub 6/) cylinders are used at all US DOE /sup 235/U enrichment facilities to determine the chemical content of cylinders - a requisite in the control and accountability of nuclear materials. Previously published reports note the economic incentives to use vapor-phase sampling for volatile impurities (as a partial replacement for liquid-phase sampling) if the liquid-phase composition can be determined from analysis of vapor-phase samples by using a model of vapor-liquid equilibrium between UF/sub 6/ and its common impurities. Such a model was adapted for this purpose in earlier work. Hydrogen fluoride, a common impurity, in UF/sub 6/ was shown not to conform to the model although other methods for calculating its concentration in the liquid phase from vapor-phase analyses were presented. This report describes preliminary comparisons with experimental data of model calculations of concentrations of nitrogen, oxygen, fluorine, chlorine trifluoride, and silicon tetrafluoride in liquid UF/sub 6/ based on analyses of the vapor phases. 4 figs., 13 tabs.
- Research Organization:
- Oak Ridge Gaseous Diffusion Plant, TN (USA)
- DOE Contract Number:
- AC05-84OT21400
- OSTI ID:
- 5751673
- Report Number(s):
- K/ITP-145; ON: DE88005257
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Liquid-phase compositions from vapor-phase analyses. II. Adaptation of the Prausnitz program to UF/sub 6/ and some of its potential impurities
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Related Subjects
URANIUM HEXAFLUORIDE
QUANTITATIVE CHEMICAL ANALYSIS
ACCOUNTING
CHLORINE FLUORIDES
FLUORINE
GAS CYLINDERS
IMPURITIES
LIQUIDS
NITROGEN
NUCLEAR MATERIALS MANAGEMENT
OXYGEN
SAMPLING
SILICON FLUORIDES
VAPOR PRESSURE
VAPORS
ACTINIDE COMPOUNDS
CHEMICAL ANALYSIS
CHLORINE COMPOUNDS
CONTAINERS
ELEMENTS
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
GASES
HALIDES
HALOGEN COMPOUNDS
HALOGENS
MANAGEMENT
NONMETALS
PHYSICAL PROPERTIES
SILICON COMPOUNDS
THERMODYNAMIC PROPERTIES
URANIUM COMPOUNDS
URANIUM FLUORIDES
055001* - Nuclear Fuels- Safeguards
Inspection
& Accountability- Technical Aspects