Stability of Hydrogen Fluoride Under Water-Gas-Reaction Conditions
Autor: | V. B. Petrov, Yu. I. Alekseev, D. A. Mukhortov, V. V. Kapustin, M. P. Kambur, D. S. Pashkevich, P. S. Kambur, V. A. Talalov, O. N. Voznyuk |
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Rok vydání: | 2019 |
Předmět: |
Aqueous solution
Hydrogen 010405 organic chemistry Inorganic chemistry General Engineering Water gas chemistry.chemical_element 010402 general chemistry Condensed Matter Physics Hydrogen fluoride 01 natural sciences Methane 0104 chemical sciences chemistry.chemical_compound chemistry Anhydrous Carbon Carbon monoxide |
Zdroj: | Journal of Engineering Physics and Thermophysics. 92:889-898 |
ISSN: | 1573-871X 1062-0125 |
Popis: | The prime objective of the investigation was to prove the stability of hydrogen fluoride under water-gas-reaction conditions. Calculations of the thermodynamically equilibrium composition of substances in the system of elements C–H–F–O were conducted, and it has been shown that with excess carbon and at a temperature of 1000 to 2000 K, the basic components of the mixture are carbon mono- and dioxide, hydrogen, methane, and hydrogen fluoride, and carbon fluorides and oxyfluorides are absent. At a temperature above 1300 K, the thermodynamically equilibrium mixture consists of carbon monoxide, hydrogen, and hydrogen fluoride. Calculation results have been confirmed by laboratory experiments in which the only fluorine-containing substance, i.e., hydrogen fluoride, was found as part of the products of interaction of water and carbon in the presence of hydrogen fluoride at a temperature of the order of 1500 K. The obtained results can become a basis for the technology of obtaining anhydrous hydrogen fluoride from its aqueous solutions, including the azeotropic one, by high-temperature interaction of the steam and carbon at |
Databáze: | OpenAIRE |
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