China Nonferrous Metallurgy

Copper anode slime is a by-product of anode copper electrolytic refining, which contains a large amount of silver, selenium, copper and gold. Slime is usually melted to recover silver and gold. The melting thermodynamics of this selenium rich material has received little attention. This article uses the electromotive force method to measure the ultrafast ion conductor RbAg4I5 in solid state primary batteries as solid electrolytes. The numerical value of the standard thermodynamic function for Ag₂Se was obtained. The silver selenide was synthesized using pure elements from vacuum quartz glass ampoules as raw materials, and its homogeneity was detected using scanning electron microscopy and energy dispersive spectroscopy. Based on experimental data, Analytical equation for Ag₂Se polymorphic forms was obtained.