A Fluid-bed Process for the Direct Conversion of Uranium Hexfloride to Uranium Dioxide

Download A Fluid-bed Process for the Direct Conversion of Uranium Hexfloride to Uranium Dioxide PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (319 download)

DOWNLOAD NOW!


Book Synopsis A Fluid-bed Process for the Direct Conversion of Uranium Hexfloride to Uranium Dioxide by : I. E. Knudsen

Download or read book A Fluid-bed Process for the Direct Conversion of Uranium Hexfloride to Uranium Dioxide written by I. E. Knudsen and published by . This book was released on 1963 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new, dry process for the production of uranium dioxide powder from uranium hexafluoride by fluidization and particle-coating techniques was developed. The process involves direct conversion of uranium hexafluoride to a solid, UO2F2, by hydrolysis with steam and the reduction of the UO2F2 to the dioxide by reaction with was carried out in 3-in.-diameter Monel reactors.

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

Download A FLUID-BED PROCESS FOR THE DIRECT CONVERSION OF URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE. PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (727 download)

DOWNLOAD NOW!


Book Synopsis A FLUID-BED PROCESS FOR THE DIRECT CONVERSION OF URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE. by :

Download or read book A FLUID-BED PROCESS FOR THE DIRECT CONVERSION OF URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE. written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A new, dry process for the production of UO2 powder from UF6 by fluidization and particle-coating techniques was developed. The process involves direct conversion of UF6 to a solid, UO2F2, by hydrolysis with steam and the reduction of the UO2F2 to the dioxide by reaction with was carried out in 3-in.-dia. Monel reactors. In continuing studies, dense, spheroidal UO2 particles in the range --20 +200 mesh are being prepared. A simultaneous (steam and H2) 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 H2 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).

Preliminary Report on Conversion of Uranium Hexafluoride to Uranium Dioxide in a One-step Fluid-bed Process

Download Preliminary Report on Conversion of Uranium Hexafluoride to Uranium Dioxide in a One-step Fluid-bed Process PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Preliminary Report on Conversion of Uranium Hexafluoride to Uranium Dioxide in a One-step Fluid-bed Process by : I. E. Knudsen

Download or read book Preliminary Report on Conversion of Uranium Hexafluoride to Uranium Dioxide in a One-step Fluid-bed Process written by I. E. Knudsen and published by . This book was released on 1959 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A one-step, continuous, fluid-bed process for the conversion of uranium hexafluoride to uranium dioxide was successfully carried out in preliminary experiments in a 1 1/2-inch-diameter Monel reactor. Hydrogen and steam were used for simultaneous reduction and pyrohydrolysis reactions carried out at 600 deg C, resulting in the formation of a dense coating of dioxide on the starting bed of uranium dioxide. The effects of uranium hexafluoride feed rate and reactant excesses on conversion were investigated. Results of fluid-bed steam pyrohydrolysis runs on uranium tetrafluoride are also presented.

A Fluid-bed Process for the Direct Conversion of Uranium Hexfloride to Uranium Dioxide

Download A Fluid-bed Process for the Direct Conversion of Uranium Hexfloride to Uranium Dioxide PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis A Fluid-bed Process for the Direct Conversion of Uranium Hexfloride to Uranium Dioxide by : I. E. Knudsen

Download or read book A Fluid-bed Process for the Direct Conversion of Uranium Hexfloride to Uranium Dioxide written by I. E. Knudsen and published by . This book was released on 1963 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new, dry process for the production of uranium dioxide powder from uranium hexafluoride by fluidization and particle-coating techniques was developed. The process involves direct conversion of uranium hexafluoride to a solid, UO2F2, by hydrolysis with steam and the reduction of the UO2F2 to the dioxide by reaction with was carried out in 3-in.-diameter Monel reactors.

Fluid-Bed Conversion of Uranium Tetrafluoride to Uranium Hexafluoride

Download Fluid-Bed Conversion of Uranium Tetrafluoride to Uranium Hexafluoride PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Fluid-Bed Conversion of Uranium Tetrafluoride to Uranium Hexafluoride by : G. J. Vogel

Download or read book Fluid-Bed Conversion of Uranium Tetrafluoride to Uranium Hexafluoride written by G. J. Vogel and published by . This book was released on 1959 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments conducted in a 2 1/2-inch diameter reactor have demonstrated that the continuous fluorination of uranium tetrafluoride to hexafluoride with elemental fluorine in a fluidized bed is possible. Practicable fluorine efficiencies and conversion rates were attained with good temperature control in experiments with refined uranium tetrafluoride. Runs made with crude uranium tetrafluoride, derived from the reduction and hydro-fluorination of ore concentrates produced by the acid-leach process, indicated that these also can be processed at satisfactory rates and efficiencies. Uranium tetrafluoride derived from carbonate-leached ore concentrate gave a lower production rate and was more difficult to process because of sintering tendencies.

Engineering Development of Fluid-bed Fluoride Volatility Processes

Download Engineering Development of Fluid-bed Fluoride Volatility Processes PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Engineering Development of Fluid-bed Fluoride Volatility Processes by : Irving E. Knudsen

Download or read book Engineering Development of Fluid-bed Fluoride Volatility Processes written by Irving E. Knudsen and published by . This book was released on 1964 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fluid-bed process for the preparation of dense, spheroidal uranium dioxide particles directly from uranium hexafluoride for dispersion and compacted fuel element applications has been developed. In the process, a uranium hexafluoride is reacted with mixtures of steam and hydrogen in a bed of uranium dioxide fluidized by the reactant gases and maintained at 650 to 700 degrees C. The solid reaction products deposit as a dense layer on the surface of the bed particles. The operating procedure involves alternating periods of uranium hexafluoride feed periods of fluoride cleanup when only steam and hydrogen are fed. Product is withdrawn at the end of each cleanup period.

Preparation of Dense Uranium Dioxide Particles from Uranium Hexafluoride in a Fluidized Bed

Download Preparation of Dense Uranium Dioxide Particles from Uranium Hexafluoride in a Fluidized Bed PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (953 download)

DOWNLOAD NOW!


Book Synopsis Preparation of Dense Uranium Dioxide Particles from Uranium Hexafluoride in a Fluidized Bed by :

Download or read book Preparation of Dense Uranium Dioxide Particles from Uranium Hexafluoride in a Fluidized Bed written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A fluid-bed method was developed for the direct preparation from uranium hexafluoride of dense, spheroidal uranium dioxide particles for dispersion and packed fuel element applications. The uranium hexafluoride is reacted with mixtures of steam and hydrogen in a bed of uranium dioxide maintained at 650 to 700 deg C, the solid reaction products depositing as a dense layer on the surface of the bed particles. The operating procedure involves alternating periods of uranium hexafluoride feed wi h periods of fluoride cleanup when only steam and hydrogen are fed. Uranium dioxide particles in the size range -- 16 + 140 mesh and having densities of 9.5 g/cc and 9.75 g/cc (up to 89% of theoretical density) were produced at 650 deg C and 700 deg C, respectively, using a uranium hexafluoride feed rate of 25 g/min STA44 lb uranium/(hr)(sq ft reactor cross section)!. The average residual fluoride content of the uranium dioxide was about 300 ppm. The densest material was obtained when 0.75 to 1.4 times the stoichiometric steam requirement (based on the reaction UF/sub 6/ + 2H/sub 2/O + H/sub 2/ yields UO/sub 2/ + 6HF was used. The effect on product density of other process variables such as uranium hexafluoride feed rate, hydrogen concentration, bed height, and duration of hexafluoride feed period was also determined. Further densification of the material to 10.4 to 10.6 g/cc, up to 96.5% of theoretical density, and reduction of the fluoride content to about 5 ppm was achieved by sintering in hydrogen at about 1700 deg C for 2.5 hours. (auth).

PRELIMINARY REPORT ON CONVERSION OF URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE IN A ONE-STEP FLUID-BED PROCESS.

Download PRELIMINARY REPORT ON CONVERSION OF URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE IN A ONE-STEP FLUID-BED PROCESS. PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (727 download)

DOWNLOAD NOW!


Book Synopsis PRELIMINARY REPORT ON CONVERSION OF URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE IN A ONE-STEP FLUID-BED PROCESS. by :

Download or read book PRELIMINARY REPORT ON CONVERSION OF URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE IN A ONE-STEP FLUID-BED PROCESS. written by and published by . This book was released on 1959 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A one-step, continuous, fluid-bed process for the conversion of uranium hexafluoride to uranium dioxide was successfully carried out in preliminary experiments in a 1 1/2-inch-diameter Monel reactor. Hydrogen and steam were used for simultaneous reduction and pyrohydrolysis reactions carried out at 600 deg C, resulting in the formation of a dense coating of dioxide on the starting bed of uranium dioxide. The effects of uranium hexafluoride feed rate and reactant excesses on conversion were investigated. Results of fluid-bed steam pyrohydrolysis runs on uranium tetrafluoride are also presented. (auth).

Reactor Fuel Processing

Download Reactor Fuel Processing PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 284 pages
Book Rating : 4.3/5 (243 download)

DOWNLOAD NOW!


Book Synopsis Reactor Fuel Processing by :

Download or read book Reactor Fuel Processing written by and published by . This book was released on 1965 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Direct Reduction of Uranium Hexafluoride to Uranium Metal by Sodium

Download Direct Reduction of Uranium Hexafluoride to Uranium Metal by Sodium PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Direct Reduction of Uranium Hexafluoride to Uranium Metal by Sodium by : C. D. Scott

Download or read book Direct Reduction of Uranium Hexafluoride to Uranium Metal by Sodium written by C. D. Scott and published by . This book was released on 1961 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Atomic Energy Research, Life and Physical Sciences, Reactor Development, Waste Management, 1961, Special Report

Download Atomic Energy Research, Life and Physical Sciences, Reactor Development, Waste Management, 1961, Special Report PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 1244 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!


Book Synopsis Atomic Energy Research, Life and Physical Sciences, Reactor Development, Waste Management, 1961, Special Report by : U.S. Atomic Energy Commission

Download or read book Atomic Energy Research, Life and Physical Sciences, Reactor Development, Waste Management, 1961, Special Report written by U.S. Atomic Energy Commission and published by . This book was released on 1962 with total page 1244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Atomic Energy Research in the Life and Physical Sciences

Download Atomic Energy Research in the Life and Physical Sciences PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 804 pages
Book Rating : 4.3/5 ( download)

DOWNLOAD NOW!


Book Synopsis Atomic Energy Research in the Life and Physical Sciences by :

Download or read book Atomic Energy Research in the Life and Physical Sciences written by and published by . This book was released on 1961 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fundamental Nuclear Energy Research

Download Fundamental Nuclear Energy Research PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 398 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Fundamental Nuclear Energy Research by : U.S. Atomic Energy Commission. Division of Plans and Reports

Download or read book Fundamental Nuclear Energy Research written by U.S. Atomic Energy Commission. Division of Plans and Reports and published by . This book was released on 1967 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nonnuclear Uses for Depleted Uranium

Download Nonnuclear Uses for Depleted Uranium PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Nonnuclear Uses for Depleted Uranium by : J. C. Bresee

Download or read book Nonnuclear Uses for Depleted Uranium written by J. C. Bresee and published by . This book was released on 1960 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Recovery of Uranium Hexafluoride from a Gas Stream by Absorption in a Fluidized Bed of Uranium Tetrafluoride

Download Recovery of Uranium Hexafluoride from a Gas Stream by Absorption in a Fluidized Bed of Uranium Tetrafluoride PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Recovery of Uranium Hexafluoride from a Gas Stream by Absorption in a Fluidized Bed of Uranium Tetrafluoride by : J. L. Powell

Download or read book Recovery of Uranium Hexafluoride from a Gas Stream by Absorption in a Fluidized Bed of Uranium Tetrafluoride written by J. L. Powell and published by . This book was released on 1958 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nuclear Science Abstracts

Download Nuclear Science Abstracts PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 1256 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Nuclear Science Abstracts by :

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Conceptual Design Study of a Fluoride-volatility Plant for Reprocessing LMFBR Fuels

Download A Conceptual Design Study of a Fluoride-volatility Plant for Reprocessing LMFBR Fuels PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (319 download)

DOWNLOAD NOW!


Book Synopsis A Conceptual Design Study of a Fluoride-volatility Plant for Reprocessing LMFBR Fuels by :

Download or read book A Conceptual Design Study of a Fluoride-volatility Plant for Reprocessing LMFBR Fuels written by and published by . This book was released on 1969 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: