METHOD FOR EXTRACTING INDIUM FROM WASTE ALLOYS, ELECTROLYTE FOR EXTRACTING INDIUM FROM WASTE ALLOYS, AND DEVICE FOR METHOD'S IMPLEMENTATION

摘要

FIELD: metallurgy.;SUBSTANCE: method for extracting indium from waste alloys involves electrolytic anodic dissolution of the alloy in molten electrolyte containing zinc chloride, and indium deposition on cathode. Anodic dissolution is performed by adding to the electrolyte of 10-15 wt % of sodium chloride and 15-20 wt % of potassium chloride and with separation of initial molten anodic alloy and cathode with diaphragm consisting of two layers of quartz fabric at electrolyte consumption of 0.4-0.5 g per cm² of fabric. The process is performed through diaphragm consisting of two layers of quartz fabric, which separates the initial molten anodic alloy and cathode. Device for extracting indium includes cathode and anodic bath with initial molten alloy; cathode is made in the form of cathodic disc freely inserted in cathodic bath in the form of cylinder with annular projection and bottom made in the form of diaphragm consisting of two layers of porous quartz fabric submerged into anodic bath, fixed with a clamp above annular protrusion on the cylinder end of cathodic bath and covered with plastic fluor.;EFFECT: reducing the costs for electrolyte and increasing indium extraction degree.;3 cl, 1 dwg, 1 tbl, 1 ex