The methods of extracting and refining tellurium presently were mainly soda roasting,autoclaving in general basic solution,sulfating roasting,oxidative leaching in acid solution,solvent extraction,emulsion liquid membrane,microbial method,electrorefining,vacuum distillation and zone melting etc.

The factors that affected surface quality of the Copper cathodic deposition in the Copper Anode containing high Arsenic & Antimony electrorefining are discussed, effective measurements to improve it are put forward.

Through experiment, we preliminarilly decide the conditions of electrorefining.

Application and improvement of fine filtering equipment in electrolytic refining of copper

The Industrial Experiment have been done and the reasons of causing long te st-manufacturing time have been analyzed in the electrolytic refining of high im purity coarse lead.

high purity indium was prepared by the method of a combination of electrolytic refining and zone melting.

In this paper, through simulating the industrial condition,the feasibility of the copper electrorefining by pulse electrolysis method is studied with high current density in a small cell, and the effect of the impurity on the structure and composition of the copper deposition is investigated by XRD,SEM,and Icp Ms.

Experimental study on a new type technology of mechanized electrolytical refinement of silver;