Author: N. C. OrrickPublisher:
ISBN:
Category :
Languages : en
Pages : 42
Book Description
Uniformly Reactive Uranium Dioxide from a Single Oxidation-reduction Cycle
Author: N. C. OrrickUniformly Reactive Uranium Dioxide from a Single Oxidation-Reduction Cycle
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
35p. By use of a modified thermobalance and reactor as the primary experimental tool for sample preparation and evaluntion, a process was developed by which parent uranium feed materials of widely variable reactivity and composition may be converted to a uniformly reactive uranium dioxide. Although numerous methods have been devised for improving the gas-solid reactivity of uranium dioxide toward hydrogen fluoride, none has overcome completely the initial variability of the available materials. Oxygen enrichment of uranium dioxide by incomplete reduction or partial reoxidntion accompanied by intermediate cooling increased hydrofluorination reactivity by as much as 50 per cent. However, this intentional introduction of uranyl fluoride as an impurity in the uranium tetrafluoride product incurs a fluorine penalty'' in its final conversion to uranium hexafluoride. Furthermore, uranyl fluoride impurity levels of this order cannot be tolerated in uranium tetrafluoride intended for reduction to metal. Complete atmospheric reoxidntion following the initial reduction of uranium feed materials to uranium dioxide produced urano-uranic oxide from which a stoichiometric uranium dioxide possessing uniform and much improved reaction characteristics could be made. Gains made available by the process are pointed out and problems remaining to be solved are formulated. (auth).
Nuclear Science Abstracts
Author: Atomic Energy Research Reports for Sale by the U.S. Department of Commerce, Office of Technical Services
Author: Business and Defense Services AdministrationPublisher:
ISBN:
Category :
Languages : en
Pages : 64
Book Description
U.S. Government Research Reports
Author: Reports Received by Division of Technical Information Extension
Author: U.S. Atomic Energy Commission. Division of Technical InformationPublisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 988
Book Description
List
Author: Reactor Fuel Processing
Author: List of References on Nuclear Energy
Author: List of References on Nuclear Energy
Author: International Atomic Energy AgencyPublisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 708
Book Description