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:
May. 20, 1980
Filed:
Mar. 23, 1978
Applicant:
Inventors:
Dieter Bergner, Kelkheim, DE;
Max Danner, Gersthofen, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ;
U.S. Cl.
CPC ...
204 94 ; 2042 / ;
Abstract
When aqueous solutions of aluminum chloride or of basic aluminum chloride having the formula Al.sub.2 (OH).sub.m Cl.sub.6-m wherein m is a number from 0 to 5.3 are submitted to electrolysis chlorine is removed and the Al/Cl ratio of the solution increases. The electrolysis is performed without diaphragm. Graphite anodes cannot be used. It is possible to process the resulting solutions to solid basic aluminum chloride having the formula Al.sub.2 (OH).sub.n Cl.sub.6-n wherein n is a number from 1 to 5.34.