Distribution of antimonium chalcogenides under conditions of vacuum thermal processing of mattes

It was established based on the analysis of results published works and obtained by authors that there is no information behavior distribution antimony chalcogenides - Sb2S3, Sb2Se3, Sb2Te3, as well double systems Sb2S3-Sb2Se3, Sb2S3-Sb2Te3 Sb2Se3-Sb2Te3 under vacuum processing conditions for polymetallic mattes performed at 1100-1250 °C a 15 0.7 kPa. found saturated vapor pressure values monochalcogenides free sulfide will be 58.95 kPa 1100 °C, i.e. lower limit technological interval, which indicates its complete transfer to phase when are evacuated; selenide exceeds atmospheric value (101.3 kPa), Sb2Se3 would completely extracted into in vacuum; boiling point liquid telluride corresponds 971 it matte evacuation. The thermodynamic evaporation characteristics were found. concluded location boundaries coexistence fields impossible separate binary compounds process one cycle – condensation, systems. Different effects reduction over melts Lowering from Sb2S3-Sb2Se3 system did not change position (L + V) temperature; field width (L+V) decreases with decreasing system; first temperature, then increases Sb2Se3- Sb2Te3. At same time, curves chalcogenide solutions distillation (at °C) important assessment rare metals selenium tellurium processed products.