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:
Dec. 30, 2025
Filed:
Nov. 22, 2021
Covestro Deutschland Ag, Leverkusen, DE;
Ulrich Wolf, Kerken, DE;
Covestro Deutschland AG, Leverkusen, DE;
Abstract
The invention relates to a distillation unit () which is designed for a continuous distillation process and to a method for a continuous operation for separating a liquid substance mixture () into two to six liquid product flows (, . . . ) with different compositions and into a gaseous product flow (). For this purpose, an evaporation unit () is provided consisting of multiple evaporation devices (--, . . . ), wherein each evaporation device has a circuit device (--, . . . ) for recirculating a sub-quantity of each of the liquid sump flows (, . . . ) of an evaporation device into the respective evaporation device, and each of the circuit devices additionally has a discharge device (--, . . . ) for providing one of the liquid product flows (, . . . ).