REMOVING METHOD OF TELLURIUM FROM COPPER SULFATE SOLUTION CONTAINING TELLURIUM

摘要

PROBLEM TO BE SOLVED: To provide such a method to remove tellurium from a soln. that the method can be easily performed in a short time. SOLUTION: A copper sulfate soln. containing tellurium is brought into contact with a copper material to produce copper telluride so as to selectively remove the telluride from the soln. In this method, the concn. of sulfuric acid in the soln. is controlled to =250g/L, and the sulfate soln. is stirred while preventing intrusion of air. The whole surface area of the copper material is preferably 0.01 to 0.2m2 to 1L of the soln.