Arsenic Vapor Condensation in the Vacuum-Thermal Dearsenation Process of Gold Concentrate

Abstract

ABSTRACT Our study investigates the condensation mechanism of vapors containing arsenic, with a particular focus on the conditions required for the creation of melted and dispersed sulfide condensate that have practical implications in technological processes. Our findings indicate that at vapor jet efflux under low pressure, ultrafine particles generates in the condensation space at first. Then they are precipitated on the cooled walls of the condenser. We explored the transition of arsenic sulfide vapor into the liquid phase and noted a simultaneous occurrence of the crystalline and liquid condensates. Our findings will provide valuable guidance for designing and operating industrial processes for gold-bearing concentrate dearsenation in a vacuum, with the potential for improved safety and efficiency.