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:
Jan. 24, 1995
Filed:
Mar. 05, 1993
Applicant:
Inventor:
Roger Lumbroso, Paris, FR;
Assignee:
Sorapec S.A., Fontenay-Sous-Bois, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
204 96 ; 204-15 ;
Abstract
Metal hydroxides are produced in an easy-to-separate powder form from metal in solution, by passing an electric current through the solution to produce the formation of a preceipitated hydroxide against a solid ion-exchange membrane, which membrane separates the anode compartment from the cathode compartment. When the solution is acidic, the membrane is an anion exchange membrane. When the solution is basic, the membrane is a cation exchange membrane.