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:
Sep. 03, 2024
Filed:
Apr. 17, 2020
Applicants:
Stephan Draese, Nettetal, DE;
Olaf Güßgen, Cologne, DE;
Oliver Seiferth, Cologne, DE;
Inventors:
Assignee:
Hydro Aluminum Rolled Products GmbH, Grevenbroich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/10 (2006.01); B01D 5/00 (2006.01); B01D 37/02 (2006.01); C02F 1/00 (2023.01); C02F 1/28 (2023.01); C10M 175/00 (2006.01);
U.S. Cl.
CPC ...
B01D 3/10 (2013.01); B01D 5/006 (2013.01); B01D 37/02 (2013.01); C02F 1/001 (2013.01); C02F 1/28 (2013.01); C10M 175/0033 (2013.01);
Abstract
Disclosed is a method for the recovery of filtering agents and rolling oil from a mixture containing used rolling oil and filtering agents coated with used rolling oil in which the mixture containing rolling oil and filtering agents is subjected to vacuum distillation under agitation in a reactor equipped with an agitator and vapour precipitator. The vacuum during distillation is regulated with an inert gas flow, the rolling oil is condensed and collected, and a rolling oil which can be reused for rolling and a powder filtering agent which can be reused are obtained.