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:
Nov. 07, 2023
Filed:
Dec. 13, 2021
Evonik Operations Gmbh, Essen, DE;
Frederik Gluth, Mülheim an der Ruhr, DE;
Marc Schäpertöns, Recklinghausen, DE;
Thomas Quell, Antwerp, BE;
Frank Geilen, Haltern am See, DE;
Stefan Drees, Dülmen, DE;
Fabian Höckelmann, Marl, DE;
Robert Franke, Marl, DE;
Evonik Operations GmbH, Essen, DE;
Abstract
The invention provides an improvement in terms of control and process technology for a method of continuous removal of a component from a liquid mixture using a membrane unit comprising at least one membrane stage. The improvement is that a portion of the overall permeate stream is recycled to the feed vessel and/or beyond the feed vessel but upstream of the conveying device, and the remainder of the overall permeate stream is removed, with the recycled permeate having a higher concentration of the component to be separated off than the removed permeate. The presently disclosed method can especially be used for separation of a homogeneously dissolved catalyst from a liquid reaction mixture.