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Book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes

Download or read book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes written by Martin J. Steindler and published by . This book was released on 1964 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The absorption spectrum of gaseous plutonium hexafluoride was determined over the range of wavelengths from 2000 angstroms to 26,000 angstroms, and molar absorbancy indices were calculated. A test of the spectral method of analysis of plutonium hexafluoride in mixtures of plutonium hexafluoride and uranium hexafluoride was made. The results indicate that plutonium hexafluoride may be determined in mixtures containing uranium hexafluoride by use of a spectral method although care is required to pre-treat the cell windows to avoid reaction with plutonium hexafluoride.

Book Laboratory investigations in support of fluid bed fluoride volatility processes Part XVII fluorination of neptunium IV fluoride and neptunium IV oxide

Download or read book Laboratory investigations in support of fluid bed fluoride volatility processes Part XVII fluorination of neptunium IV fluoride and neptunium IV oxide written by and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book LABORATORY INVESTIGATIONS IN SUPPORT OF FLUID BED FLUORIDE VOLATILITY PROCESSES PART X A LITERATURE SURVEY ON THE PROPERTIES OF TELLURIUM ITS OXYGEN AND FLUORINE COMPOUNDS

Download or read book LABORATORY INVESTIGATIONS IN SUPPORT OF FLUID BED FLUORIDE VOLATILITY PROCESSES PART X A LITERATURE SURVEY ON THE PROPERTIES OF TELLURIUM ITS OXYGEN AND FLUORINE COMPOUNDS written by and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes

Download or read book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes written by Martin J. Steindler and published by . This book was released on 1964 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes Part Iv the Fluid Bed Fluorination of U sub 3 O sub 8

Download or read book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes Part Iv the Fluid Bed Fluorination of U sub 3 O sub 8 written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In one of the processes under development, the uranium and plutonium content of a spent reactor fuel of the Dresden type would be fluorinated in a fluid-bed reactor to produce the volatile uranium and plutonium hexafluorides. The study of the fluorination of U/sub 3/O/sub 8/ was undertaken because it is the major product obtained in an oxidative decladding step that is being proposed for the removal of uranium and plutonium from stainless steel-clad and Zircaloy- clad fuel elements. The study Will also provide data needed for the development of apparatus and procedures for future work with mixtures of uranosic oxide and plutoniam dioxide. Experiments were performed to determine the optimum reaction conditions for the conversion of U/sub 3/O/sub 8/ to uranium hexafluoride and for minimizing the elutriation of unreacted U/sub 3/O/sub 8/ from the fluid bed. Elutriation of U/sub 3/O/sub 8/ from the fluid bed was minimized when a fluid bed height of 8 in. of 120 mesh alumina, a fluorinating gas phase containing 20 vol% fluorine, and a reaction temperature of 500 deg C were employed. Conversion of greater than 99% of the U/sub 3/O/sub 8/ to uranium hexafluoride was obtained when the feeding-fluorination period, in w, hich the U/sub 3/O/sub 8/ powder was fed into the fluid bed and the major part of the fluorination was accomplished by reacting the oxide with 20 vol % fluorine, was followed by a recycle-fluorination period of 5 hr at 500 deg C with 100% fluorine. Kinetic data for the fluorination of U/sub 3/O/sub 8/, obtained by means of a thermobalance, are reported for the temperature range from 300 to 400 deg C. The data were treated by the diminishing-sphere model. Experimental results are also presented for the oxidative decladding of stainless steelclad and Zircaloy-clad uranium dioxide pellets. (auth).

Book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes

Download or read book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes written by R. L. Jarry and published by . This book was released on 1963 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were performed to determine the optimum reaction conditions for the conversion of U3O8 to uranium hexafluoride and for minimizing the elutriation of unreacted U3O8 from the fluid bed.

Book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes

Download or read book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes written by R. L. Jarry and published by . This book was released on 1963 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Work in the development of fluid-bed fluoride volatility processes is described. In these processes, uranium and plutonium in spent nuclear fuels are converted into hexafluoride compounds in a fluid-bed reactor. The uranium and plutonium hexafluorides are volatile and can be separated from fission products, cladding, and alloying materials by techniques such as vaporization and distillation. The experimental work was directed toward devising a fluorination procedure for uranium and plutonium dioxides which would result in a high degree of removal of uranium and plutonium as hexafluorides.

Book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes

Download or read book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes written by Martin J. Steindler and published by . This book was released on 1963 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addition of fluorine or oxygen to plutonium hexafluoride resulted in a G value for the decomposition that was less than that obtained from the irradiation of pure plutonium hexafluoride.

Book LABORATORY INVESTIGATIONS IN SUPPORT OF FLUID BED FLUORIDE VOLATILITY PROCESSES PART IX THE FLUID BED FLUORINATION OF PLUTONIUM CONTAINING SIMULATED OXIDIC NUCLEAR FUEL IN A 1 1 2 INCH DIAMeter Reactor

Download or read book LABORATORY INVESTIGATIONS IN SUPPORT OF FLUID BED FLUORIDE VOLATILITY PROCESSES PART IX THE FLUID BED FLUORINATION OF PLUTONIUM CONTAINING SIMULATED OXIDIC NUCLEAR FUEL IN A 1 1 2 INCH DIAMeter Reactor written by and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes

Download or read book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes written by L. Trevorrow and published by . This book was released on 1963 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were carried out to determine the extent and rate of separation of mixtures of uranium hexafluoride and plutonium hexafluoride by selective thermal decomposition. Gaseous mixtures of uranium hexafluoride, plutonium hexafluoride, and helium were circulated for varying lengths of time through nickel vessels packed with nickel wool at temperatures of 150, 200, and 300 deg C. The initial ratios of uranium hexafluoride to plutonium hexafluoride in the mixtures were of the order of 10 to 1. The gas phase was analyzed for uranium and plutonium before and after circulation. The amounts of uranium and plutonium in the solid compounds deposited in the vessels were also determined. Passage of the mixtures through the hot vessels resulted in the removal of 99.5 to 99.9% of the plutonium. The solid product remaining in the vessels was plutonium tetrafluoride containing 0.09 to 1.3% uranium. The separation of plutonium hexafluoride from uranium hexafluoride by selective thermal decomposition is applicable to fluid bed fluoride volatility processes for the recovery of fissile material from reactor fuels.

Book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes

Download or read book Laboratory Investigations in Support of Fluid Bed Fluoride Volatility Processes written by M. J. Steindler and published by . This book was released on 1964 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The absorption spectrum of gaseous plutonium hexafluoride was determined over the range of wavelengths from 2000 angstroms to 26,000 angstroms, and molar absorbancy indices were calculated. A test of the spectral method of analysis of plutonium hexafluoride in mixtures of plutonium hexafluoride and uranium hexafluoride was made. The results indicate that plutonium hexafluoride may be determined in mixtures containing uranium hexafluoride by use of a spectral method although care is required to pre-treat the cell windows to avoid reaction with plutonium hexafluoride.