METHOD OF RECOVERING INDIUM AND TIN

摘要

PROBLEM TO BE SOLVED: To provide a method of recovering indium and tin by which high purity indium and crude tin are easily recovered from a block object containing indium oxide and tin oxide.SOLUTION: The method of recovering high purity indium and crude tin is carried out by reducing the block object containing indium oxide and tin oxide at 730-1,250°C in a reducing atmosphere to produce an indium, tin alloy anode, primarily indium electric refining to obtain an indium electrodeposition object, melting the indium electrodeposition object at 180-300°C to cast the indium anode and secondarily indium electric refining.