Valery N. Volodin
"Institute of Metallurgy and Ore Benefication" Joint-stock company, Kazakhstan
Biography
Valery N. Volodin is engaged in the development of distillation technologies for separation of chalcogenide melts and metal refining in vacuum. His fields of interest include thermodynamics and vapor-liquid equilibrium. The partial pressure of the vapor components is used as the basis for determining the boundaries of the liquid-vapor phase transition for high-temperature melts. Due to the impossibility of boiling of metallic and chalcogenide melts, due to the high specific density of their constituents as the boiling point, a temperature is assumed at which the sum of the partial pressures is equal to atmospheric and the composition of the vapor phase is equal to the fraction of the partial pressure in the total pressure. The limits of the coexistence of liquid alloys and the vapor phase thus found allow one to obtain information about the possibility of distillation separation of melts into components or lack thereof, technological difficulties, the number of distillation-condensation cycles, and are demanded by process engineers for the development of new processes.
Abstract
Abstract : Phase equilibrium of the melt-vapor in the tellurium-sulfur system