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:
Apr. 12, 1988
Filed:
Dec. 02, 1986
Applicant:
Inventors:
Hans-Joachim Konietzni, Gladbeck, DE;
Wilhelm Gotzelmann, Stuttgart, DE;
Ulrich Borgs, Monchen-Gladbach, DE;
Assignees:
AEG-Elotherm GmbH, Remscheid-Hasten, DE;
Rheinmetall GmbH, Dusseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25F / ;
U.S. Cl.
CPC ...
20412975 ;
Abstract
The invention refers to a process for regenerating electrolytes containing sodium nitrate for use in the electrochemical working of metallic workpieces within the pH range from 4 to 12. Iron (III) nitrate is added to the electrolyte in the working cycle in such an amount that the hydrolysates are predominantly precipitated in coarse flocculent form. Flocculents may be added to the electrolyte.