OBTAINING HYDROGEN FLUORIDE DURING THE INTERACTION OF URANIUM HEXAFLUORIDE WITH HYDROGEN AND OXYGEN IN A COMBUSTION REGIME. THERMODYNAMIC ANALYSIS

The objective of the work was to thermodynamically substantiate the method of obtaining hydrogen fl uoride from uranium hexafl uoride by its treatment in the fl ame of a hydrogen-containing fuel and an oxygen-containing oxidant. It was shown by calculations that in the system of elements U–F–H–O when the number of hydrogen atoms is larger or equal to the number of fl uorine atoms and the number of oxygen atoms is twice as large as the number of uranium atoms, the major uranium-bearing compounds in the thermodynamically equilibrium mixture of substances at a temperature above 1100 K are uranium oxides, and the only, in practice, fl uorine-containing compound is hydrogen fl uoride. The indicated temperature can be reached in the case of interaction of uranium hexafl uoride with hydrogencontaining and oxygen-containing substances in a combustion regime, e.g., with hydrogen and oxygen. The obtained results may become a basis for experimental investigation into the production of hydrogen fl uoride from uranium hexafl uoride in a combustion regime.
   
Author:  D. S. Pashkevich, A. R. Zimin, V. V. Kapustin, and V. B. Petrov
Keywords:  hydrogen fl uoride, depleted uranium hexafl uoride, uranium dioxide, thermodynamic equilibrium, Gibbs energy, combustion
Page:  963