Abstract
The kinetics of degassing of industrial arsenic isolated from lewisite detoxification products was studied. The optimum conditions for the removal of gases and moisture were determined: the optimum procedure was found to be the treatment of industrial arsenic in a vacuum at 200°C for 1 h or in an inert atmosphere at 280°C for 1.5 h. Based on the theory of internal-diffusion desorption, a mathematical model of industrial arsenic degassing kinetics was proposed, which can predict, with high accuracy, the equilibrium and kinetics of desorption of gaseous components from powdered arsenic over given ranges of temperatures and starting concentrations of sorbed gases.
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REFERENCES
Fedorov, V.A., High-Purity Substances and Microelectronic and Optical Materials, in Teoreticheskaya i prikladnaya neorganicheskaya khimiya(Theoretical and Applied Inorganic Chemistry)}, Moscow: Nauka, 1999, p. 400.
Fedorov, V.A., Manufacture of High-Purity Arsenic from an Unconventional Source, Rus. J. Inorg. Chem., 2001, vol. 46,Suppl. 2, p. 87.
Umyarov, G.A., Kuznetsov, B.A., Krotovich, I.N., et al., Methods for Destruction and Utilization of Lewisite and Mustard Gas Stocks, Zh. Vsesoyuz. Khim. O–va Im. Mendeleeva, 1993, vol. 37, no. 3, p. 25.
Fedorov, V.A., Efremov, A.A., Grinberg, E.E., et al., Problems of Production of Arsenic and Its Special-Purity Compounds on the Basis of Lewisite, Zh. Vsesoyuz. Khim. O–va Im. Mendeleeva, 1994, vol. 38, no. 2, p. 25.
Bessarabov, A.M., Ivanov, M.Ya., Ryabenko, E.A., et?al., Study of Desorption in High-Temperature Deethoxylation of Granulated Special-Purity Silicon Dioxide, Zh. Fiz. Khim., 1977, vol. 51, no. 3, p. 769.
Bessarabov, A.M., Modeling and Optimization of Chemical Engineering Processes for Production of High-Purity Solid Products, Reaktivy i osobo chistye veshchestva(Reagents and Special-Purity Substances)}, Moscow: NIITEKhIM, 1988.
Efremov, A.A., Glukhan, R.I., Bessarabov, A.M., et al., Arsenic Trioxide Drying Kinetics, Khim. Prom–st., 1984, no. 4, p. 228.
Bessarabov, A.M., Vasil'eva, L.V., Tartakovskii, V.L., and Belyaeva, N.A., Study of Coprecipitation of Impurities from Lead Nitrate Solutions, Zh. Fiz. Khim., 1986, vol. 60, no. 6, p. 78.
Malenge, M.J., Development of the Golden Section Method, Trudy Vtorogo sovetsko-frantsuzskogo seminara po matematicheskomu modelirovaniyu kataliticheskikh protsessov i reaktorov(Proc. Second Soviet–French Seminar on Mathematical Modeling of Catalytic Processes and Reactors)}, Novosibirsk, 1976, p. 240.
Kafarov, V.V., Vetokhin, V.I., and Boyarinov, A.I., Programmirovanie i vychislitel'nye metody v khimii i khimicheskoi tekhnologii(Programming and Computational Methods in Chemistry and Chemical Engineering)}, Moscow: Nauka, 1972.
Delmon, B., Introduction a la cinetique heterogene, Paris: Technip, 1969. Translated under the title Kinetika geterogennykh reaktsiiPeople's/E Moscow: Mir, 1972.
Aramanovich, I.G. and Levin, V.I., Uravneniya matematicheskoi fiziki(Equations of Mathematical Physics)}, Moscow: Nauka, 1972.
Farlow, S.J., Partial Differential Equations for Scientists and Engineers, New York: Wiley, 1982. Translated under the title Uravneniya s chastnymi proizvodnymi dlya nauchnykh rabotnikov i inzhenerov, Moscow: Mir, 1985.
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Bessarabov, A.M., Nikolashin, S.V., Zhukov, E.G. et al. Modeling of the Degassing of Industrial Arsenic, a Lewisite Detoxification Product. Theoretical Foundations of Chemical Engineering 38, 67–71 (2004). https://doi.org/10.1023/B:TFCE.0000014391.10412.02
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DOI: https://doi.org/10.1023/B:TFCE.0000014391.10412.02