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. 09, 2025
Filed:
Mar. 05, 2021
Applicant:
Linde Gmbh, Pullach, DE;
Inventor:
Dimitri Golubev, Geretsried, DE;
Assignee:
LINDE GMBH, Pullach, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25J 3/02 (2006.01); F25J 3/04 (2006.01);
U.S. Cl.
CPC ...
F25J 3/0423 (2013.01); F25J 3/0409 (2013.01); F25J 3/04212 (2013.01); F25J 3/04321 (2013.01); F25J 3/04454 (2013.01); F25J 2200/54 (2013.01); F25J 2200/94 (2013.01); F25J 2235/42 (2013.01); F25J 2245/42 (2013.01); F25J 2250/02 (2013.01); F25J 2250/20 (2013.01); F25J 2270/02 (2013.01);
Abstract
Described herein is a process for low-temperature separation of air, in which an air separation plant having a first rectification column and a second rectification column is used, the first rectification column being supplied with cooled compressed air and the second rectification column being supplied with liquid from the first rectification column or liquid formed herefrom. In a first condenser-evaporator, head gas from the first rectification column is condensed and liquid from the second rectification column, or liquid formed herefrom, is evaporated, thereby producing a first evaporation product.