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:
Oct. 19, 1993
Filed:
Mar. 19, 1992
Applicant:
Inventors:
Gerhard Kudermann, Alfter, DE;
Karl-Heinz Blaufuss, Windhagen, DE;
Assignee:
VAW Aluminium AG, Bonn, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
204 94 ;
Abstract
Disclosed is a method for increasing the molar ratio of aluminum to chlorine in a polyaluminum chloride solution by the electrochemical dissolving of aluminum, including contacting a polyaluminum chloride solution having a molar ratio of aluminum to chlorine of equal to or greater than 0.5 with a galvanic element. The galvanic element includes metallic aluminum and an electrochemically more noble metal. Contact is maintained until the aluminum to chlorine ratio is increased to the desired level.