The Experts below are selected from a list of 129 Experts worldwide ranked by ideXlab platform
V. A. Fedorov - One of the best experts on this subject based on the ideXlab platform.
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Distillation recovery of AsCl_3 from AsCl_3-HCl-H_2O solutions
Inorganic Materials, 2007Co-Authors: S. V. Nikolashin, V. N. Potolokov, T. K. Menshchikova, V. A. FedorovAbstract:The distillation recovery of Arsenic Trichloride from saturated solutions in concentrated hydrochloric acid has been studied experimentally at a pressure of 1.013 × 10^5 Pa and temperatures from 60 to 75°C, and the optimal process temperature has been determined.
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Distillation recovery of AsCl3 from AsCl3-HCl-H2O solutions
Inorganic Materials, 2007Co-Authors: S. V. Nikolashin, V. N. Potolokov, T. K. Menshchikova, V. A. FedorovAbstract:The distillation recovery of Arsenic Trichloride from saturated solutions in concentrated hydrochloric acid has been studied experimentally at a pressure of 1.013 × 105 Pa and temperatures from 60 to 75°C, and the optimal process temperature has been determined.
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Reduction of Arsenic Trichloride with hydrogen
Russian Journal of Applied Chemistry, 2007Co-Authors: N. A. Potolokov, A. V. Serov, V. N. Potolokov, A. V. Zhuravlev, V. P. Kolganov, E. G. Zhukov, V. A. Fedorov, V. I. KholstovAbstract:The composition of an equilibrium vapor-gas mixture in the range 700–1100 K was estimated for the reaction of Arsenic Trichloride with hydrogen taken in excess of a = 1.0–2.5 as compared to the stoichiometry. The temperatures of the onset of Arsenic condensation (dew point) were found. Kinetic parameters of the chemical reaction were determined. Optimal conditions for the reduction of Arsenic Trichloride with hydrogen were refined and conditions for the condensation of Arsenic with the minimum fraction of the amorphous modification were found.
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Liquid-vapor equilibria in the AsCl_3-HCl-H_2O system
Inorganic Materials, 2006Co-Authors: V. N. Potolokov, E. G. Zhukov, V. A. Efremov, S. V. Nikolashin, T. K. Menshchikova, V. A. FedorovAbstract:The liquid-vapor equilibria in the AsCl_3-HCl-H_2O system have been studied by a flow method at high hydrogen chloride concentrations (above 20 wt %) over the entire Arsenic Trichloride solubility range at temperatures from 25 to 105°C and a pressure of 1.013 MPa. The composition effects on the parameters of the liquid-vapor equilibria have been assessed, and the conditions for the most effective recovery of Arsenic Trichloride from hydrochloric acid solutions by distillation were established.
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Liquid-vapor equilibria in the AsCl3-HCl-H2O system
Inorganic Materials, 2006Co-Authors: V. N. Potolokov, E. G. Zhukov, V. A. Efremov, S. V. Nikolashin, T. K. Menshchikova, V. A. FedorovAbstract:The liquid-vapor equilibria in the AsCl3-HCl-H2O system have been studied by a flow method at high hydrogen chloride concentrations (above 20 wt %) over the entire Arsenic Trichloride solubility range at temperatures from 25 to 105°C and a pressure of 1.013 MPa. The composition effects on the parameters of the liquid-vapor equilibria have been assessed, and the conditions for the most effective recovery of Arsenic Trichloride from hydrochloric acid solutions by distillation were established.
V. N. Potolokov - One of the best experts on this subject based on the ideXlab platform.
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Distillation recovery of AsCl_3 from AsCl_3-HCl-H_2O solutions
Inorganic Materials, 2007Co-Authors: S. V. Nikolashin, V. N. Potolokov, T. K. Menshchikova, V. A. FedorovAbstract:The distillation recovery of Arsenic Trichloride from saturated solutions in concentrated hydrochloric acid has been studied experimentally at a pressure of 1.013 × 10^5 Pa and temperatures from 60 to 75°C, and the optimal process temperature has been determined.
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Distillation recovery of AsCl3 from AsCl3-HCl-H2O solutions
Inorganic Materials, 2007Co-Authors: S. V. Nikolashin, V. N. Potolokov, T. K. Menshchikova, V. A. FedorovAbstract:The distillation recovery of Arsenic Trichloride from saturated solutions in concentrated hydrochloric acid has been studied experimentally at a pressure of 1.013 × 105 Pa and temperatures from 60 to 75°C, and the optimal process temperature has been determined.
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Reduction of Arsenic Trichloride with hydrogen
Russian Journal of Applied Chemistry, 2007Co-Authors: N. A. Potolokov, A. V. Serov, V. N. Potolokov, A. V. Zhuravlev, V. P. Kolganov, E. G. Zhukov, V. A. Fedorov, V. I. KholstovAbstract:The composition of an equilibrium vapor-gas mixture in the range 700–1100 K was estimated for the reaction of Arsenic Trichloride with hydrogen taken in excess of a = 1.0–2.5 as compared to the stoichiometry. The temperatures of the onset of Arsenic condensation (dew point) were found. Kinetic parameters of the chemical reaction were determined. Optimal conditions for the reduction of Arsenic Trichloride with hydrogen were refined and conditions for the condensation of Arsenic with the minimum fraction of the amorphous modification were found.
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Liquid-vapor equilibria in the AsCl_3-HCl-H_2O system
Inorganic Materials, 2006Co-Authors: V. N. Potolokov, E. G. Zhukov, V. A. Efremov, S. V. Nikolashin, T. K. Menshchikova, V. A. FedorovAbstract:The liquid-vapor equilibria in the AsCl_3-HCl-H_2O system have been studied by a flow method at high hydrogen chloride concentrations (above 20 wt %) over the entire Arsenic Trichloride solubility range at temperatures from 25 to 105°C and a pressure of 1.013 MPa. The composition effects on the parameters of the liquid-vapor equilibria have been assessed, and the conditions for the most effective recovery of Arsenic Trichloride from hydrochloric acid solutions by distillation were established.
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Liquid-vapor equilibria in the AsCl3-HCl-H2O system
Inorganic Materials, 2006Co-Authors: V. N. Potolokov, E. G. Zhukov, V. A. Efremov, S. V. Nikolashin, T. K. Menshchikova, V. A. FedorovAbstract:The liquid-vapor equilibria in the AsCl3-HCl-H2O system have been studied by a flow method at high hydrogen chloride concentrations (above 20 wt %) over the entire Arsenic Trichloride solubility range at temperatures from 25 to 105°C and a pressure of 1.013 MPa. The composition effects on the parameters of the liquid-vapor equilibria have been assessed, and the conditions for the most effective recovery of Arsenic Trichloride from hydrochloric acid solutions by distillation were established.
S. V. Nikolashin - One of the best experts on this subject based on the ideXlab platform.
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Distillation recovery of AsCl3 from AsCl3-HCl-H2O solutions
Inorganic Materials, 2007Co-Authors: S. V. Nikolashin, V. N. Potolokov, T. K. Menshchikova, V. A. FedorovAbstract:The distillation recovery of Arsenic Trichloride from saturated solutions in concentrated hydrochloric acid has been studied experimentally at a pressure of 1.013 × 105 Pa and temperatures from 60 to 75°C, and the optimal process temperature has been determined.
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Distillation recovery of AsCl_3 from AsCl_3-HCl-H_2O solutions
Inorganic Materials, 2007Co-Authors: S. V. Nikolashin, V. N. Potolokov, T. K. Menshchikova, V. A. FedorovAbstract:The distillation recovery of Arsenic Trichloride from saturated solutions in concentrated hydrochloric acid has been studied experimentally at a pressure of 1.013 × 10^5 Pa and temperatures from 60 to 75°C, and the optimal process temperature has been determined.
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Liquid-vapor equilibria in the AsCl3-HCl-H2O system
Inorganic Materials, 2006Co-Authors: V. N. Potolokov, E. G. Zhukov, V. A. Efremov, S. V. Nikolashin, T. K. Menshchikova, V. A. FedorovAbstract:The liquid-vapor equilibria in the AsCl3-HCl-H2O system have been studied by a flow method at high hydrogen chloride concentrations (above 20 wt %) over the entire Arsenic Trichloride solubility range at temperatures from 25 to 105°C and a pressure of 1.013 MPa. The composition effects on the parameters of the liquid-vapor equilibria have been assessed, and the conditions for the most effective recovery of Arsenic Trichloride from hydrochloric acid solutions by distillation were established.
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Liquid-vapor equilibria in the AsCl_3-HCl-H_2O system
Inorganic Materials, 2006Co-Authors: V. N. Potolokov, E. G. Zhukov, V. A. Efremov, S. V. Nikolashin, T. K. Menshchikova, V. A. FedorovAbstract:The liquid-vapor equilibria in the AsCl_3-HCl-H_2O system have been studied by a flow method at high hydrogen chloride concentrations (above 20 wt %) over the entire Arsenic Trichloride solubility range at temperatures from 25 to 105°C and a pressure of 1.013 MPa. The composition effects on the parameters of the liquid-vapor equilibria have been assessed, and the conditions for the most effective recovery of Arsenic Trichloride from hydrochloric acid solutions by distillation were established.
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Chemical Equilibria in Hydrolysis of Germanium Tetrachloride and Arsenic Trichloride
Inorganic Materials, 2002Co-Authors: V. A. Efremov, V. N. Potolokov, S. V. Nikolashin, V. A. FedorovAbstract:The chemical equilibria in the hydrolysis of high-purity germanium tetrachloride and Arsenic Trichloride at low water concentrations were studied by IR spectroscopy. The equilibrium constant of AsCl_3 hydrolysis was shown to correlate with the activity coefficient of AsCl_3 . The equilibrium constants and thermodynamic characteristics of GeCl_4 and AsCl_3 hydrolysis in CCl_4 were calculated for the temperature range 283–333 K.
E. G. Zhukov - One of the best experts on this subject based on the ideXlab platform.
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Reduction of Arsenic Trichloride with hydrogen
Russian Journal of Applied Chemistry, 2007Co-Authors: N. A. Potolokov, A. V. Serov, V. N. Potolokov, A. V. Zhuravlev, V. P. Kolganov, E. G. Zhukov, V. A. Fedorov, V. I. KholstovAbstract:The composition of an equilibrium vapor-gas mixture in the range 700–1100 K was estimated for the reaction of Arsenic Trichloride with hydrogen taken in excess of a = 1.0–2.5 as compared to the stoichiometry. The temperatures of the onset of Arsenic condensation (dew point) were found. Kinetic parameters of the chemical reaction were determined. Optimal conditions for the reduction of Arsenic Trichloride with hydrogen were refined and conditions for the condensation of Arsenic with the minimum fraction of the amorphous modification were found.
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Liquid-vapor equilibria in the AsCl_3-HCl-H_2O system
Inorganic Materials, 2006Co-Authors: V. N. Potolokov, E. G. Zhukov, V. A. Efremov, S. V. Nikolashin, T. K. Menshchikova, V. A. FedorovAbstract:The liquid-vapor equilibria in the AsCl_3-HCl-H_2O system have been studied by a flow method at high hydrogen chloride concentrations (above 20 wt %) over the entire Arsenic Trichloride solubility range at temperatures from 25 to 105°C and a pressure of 1.013 MPa. The composition effects on the parameters of the liquid-vapor equilibria have been assessed, and the conditions for the most effective recovery of Arsenic Trichloride from hydrochloric acid solutions by distillation were established.
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Liquid-vapor equilibria in the AsCl3-HCl-H2O system
Inorganic Materials, 2006Co-Authors: V. N. Potolokov, E. G. Zhukov, V. A. Efremov, S. V. Nikolashin, T. K. Menshchikova, V. A. FedorovAbstract:The liquid-vapor equilibria in the AsCl3-HCl-H2O system have been studied by a flow method at high hydrogen chloride concentrations (above 20 wt %) over the entire Arsenic Trichloride solubility range at temperatures from 25 to 105°C and a pressure of 1.013 MPa. The composition effects on the parameters of the liquid-vapor equilibria have been assessed, and the conditions for the most effective recovery of Arsenic Trichloride from hydrochloric acid solutions by distillation were established.
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Preparation of High-Purity Arsenic via Hydrogen Reduction of Arsenic Trichloride
Inorganic Materials, 2003Co-Authors: V. N. Potolokov, N. A. Potolokov, E. G. Zhukov, V. A. Efremov, A. S. Pashinkin, V. A. FedorovAbstract:The chemical equilibria involved in the hydrogen reduction of Arsenic Trichloride under reaction conditions of practical interest are assessed by thermodynamic modeling. Experimental data for high-purity Arsenic Trichloride are used to optimize the reduction conditions. The optimal residence time of the gas mixture in the reaction zone is 30–50 s. The optimal reduction temperature is 1023 K. Condensation temperatures in the range 600–650 K make it possible to minimize the percentage of amorphous Arsenic. The yield of elemental Arsenic is ≃99.99%.
V. A. Efremov - One of the best experts on this subject based on the ideXlab platform.
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Liquid-vapor equilibria in the AsCl_3-HCl-H_2O system
Inorganic Materials, 2006Co-Authors: V. N. Potolokov, E. G. Zhukov, V. A. Efremov, S. V. Nikolashin, T. K. Menshchikova, V. A. FedorovAbstract:The liquid-vapor equilibria in the AsCl_3-HCl-H_2O system have been studied by a flow method at high hydrogen chloride concentrations (above 20 wt %) over the entire Arsenic Trichloride solubility range at temperatures from 25 to 105°C and a pressure of 1.013 MPa. The composition effects on the parameters of the liquid-vapor equilibria have been assessed, and the conditions for the most effective recovery of Arsenic Trichloride from hydrochloric acid solutions by distillation were established.
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Liquid-vapor equilibria in the AsCl3-HCl-H2O system
Inorganic Materials, 2006Co-Authors: V. N. Potolokov, E. G. Zhukov, V. A. Efremov, S. V. Nikolashin, T. K. Menshchikova, V. A. FedorovAbstract:The liquid-vapor equilibria in the AsCl3-HCl-H2O system have been studied by a flow method at high hydrogen chloride concentrations (above 20 wt %) over the entire Arsenic Trichloride solubility range at temperatures from 25 to 105°C and a pressure of 1.013 MPa. The composition effects on the parameters of the liquid-vapor equilibria have been assessed, and the conditions for the most effective recovery of Arsenic Trichloride from hydrochloric acid solutions by distillation were established.
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Preparation of High-Purity Arsenic via Hydrogen Reduction of Arsenic Trichloride
Inorganic Materials, 2003Co-Authors: V. N. Potolokov, N. A. Potolokov, E. G. Zhukov, V. A. Efremov, A. S. Pashinkin, V. A. FedorovAbstract:The chemical equilibria involved in the hydrogen reduction of Arsenic Trichloride under reaction conditions of practical interest are assessed by thermodynamic modeling. Experimental data for high-purity Arsenic Trichloride are used to optimize the reduction conditions. The optimal residence time of the gas mixture in the reaction zone is 30–50 s. The optimal reduction temperature is 1023 K. Condensation temperatures in the range 600–650 K make it possible to minimize the percentage of amorphous Arsenic. The yield of elemental Arsenic is ≃99.99%.
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Chemical Equilibria in Hydrolysis of Germanium Tetrachloride and Arsenic Trichloride
Inorganic Materials, 2002Co-Authors: V. A. Efremov, V. N. Potolokov, S. V. Nikolashin, V. A. FedorovAbstract:The chemical equilibria in the hydrolysis of high-purity germanium tetrachloride and Arsenic Trichloride at low water concentrations were studied by IR spectroscopy. The equilibrium constant of AsCl_3 hydrolysis was shown to correlate with the activity coefficient of AsCl_3 . The equilibrium constants and thermodynamic characteristics of GeCl_4 and AsCl_3 hydrolysis in CCl_4 were calculated for the temperature range 283–333 K.
