A process for recovering tin from the tin anode slime Process

The present invention discloses a process for the recovery of tin from the tin anode slime, the process is selectively start the tin anode slime leaching of tin oxide, and then the reduction and purification of leachate, tin anode mud valuable elements such as the common silver, bismuth, copper, lead and all enriched slag to a reducing slag purification, the purification was reextracted combined field coupling diaphragm tin electrodeposition, to obtain the electric tin cathode plate and the anode chamber of the electrolytic solution as tin desired anode slime leaching stage is returned to the leaching step of oxidizing agent. The process did closed circulation process, the oxidizing agent used can be recycled, can solve the conventional high when the tin anode mud recovered tin common energy consumption, low metal recovery, difficult to recover valuable metals integrated, heavy pollution problems, particularly suitable for high tin anode slime material handling new output, it has a simple process, high metal recovery, clean environment outstanding advantages.