Title: Cyclically usable and contamination-reduction process of copper sulfate used as chemical and electrochemical corrodent
Application Number: 89106769 Application Date: 1989.08.26
Publication Number: 1049872 Publication Date: 1991.03.13
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C23F1/46
Applicant(s) Name: Ren Erping Address:
Inventor(s) Name: Ren Erping
Attorney & Agent:
Abstract:
     The present invention belongs to the field of inorganic chemical industry and is applicable to industrial products and other fittings which are manufactured according to chemical and electro-chemical corrosion principle and are corrosively treated by use of corrosive agent containing copper sulfate. It comprehensively utilizes physico-chemical principle and uses a "closed process" which can be used cyclically, and its operation method corresponding to the above process. It solves the problems of waste resulted from one-time consumption of copper sulfate and environmental pollution. As compared with existent technique the said process can economize corrosin cost by more than 60%, and has the notable economic and social benefits.
Time: 13