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. 14, 2026
Filed:
Feb. 12, 2021
Applicant:
Topsoe A/s, Kgs. Lyngby, DK;
Inventors:
Mads Lykke, Brønshøj, DK;
Lars Piilmann Brorholt, Melby, DK;
Per Aggerholm Sørensen, Kgs. Lyngby, DK;
Assignee:
TOPSOE A/S, Kgs. Lyngby, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/20 (2006.01); B01D 37/02 (2006.01); B01D 39/16 (2006.01); B01D 71/36 (2006.01); B01J 20/14 (2006.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01); B01J 23/22 (2006.01); C01B 17/79 (2006.01); C01B 17/88 (2006.01); C01B 17/90 (2006.01);
U.S. Cl.
CPC ...
B01D 39/2027 (2013.01); B01D 37/02 (2013.01); B01D 39/1692 (2013.01); B01D 39/2017 (2013.01); B01D 71/36 (2013.01); B01J 20/14 (2013.01); B01J 20/261 (2013.01); B01J 20/28033 (2013.01); B01J 23/22 (2013.01); C01B 17/79 (2013.01); C01B 17/88 (2013.01); C01B 17/90 (2013.01); B01D 2239/1216 (2013.01);
Abstract
Process for the removal of particulate matter from an aqueous stream containing a concentrated acid, preferably concentrated sulfuric acid, the process including mechanical filtration by passing the aqueous stream through a filter unit, the filter unit including a metallic, ceramic or polymeric filter, or a filter including a filter aid on a septum. The aqueous stream is the exit stream of a sulfuric acid condenser, optionally the exit stream of a sulfuric acid concentrator arranged downstream the sulfuric acid condenser.