The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 1988
Filed:
Oct. 29, 1987
Applicant:
Inventors:
Toshikatsu Hamano, Machida, JP;
Yukio Matsumura, Ichihara, JP;
Assignee:
Asahi Glass Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
204130 ;
Abstract
A method for treating a plating solution in an electrolytic cell having a cathode compartment and an anode compartment partitioned by an ion-exchange membrane, which comprises supplying a plating solution containing not more than 10 g/liter of Fe.sup.3+ ions to the cathode compartment and an electrically conductive solution to the anode compartment, and electrolytically reducing the Fe.sup.3+ ions in the plating solution to Fe.sup.2+ ions, wherein an electrode having a hydrogen overvoltage of not higher than 350 mV, preferably made of a carbon material, is used as a cathode.