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:
Aug. 19, 2025
Filed:
Dec. 02, 2022
Applicant:
Knauf Gips KG, Iphofen, DE;
Inventors:
Qinghua Li, Rolling Meadows, IL (US);
Xiaoyan Chen, Austin, TX (US);
Assignee:
KNAUF GIPS KG, Iphofen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/34 (2006.01); B01D 61/46 (2006.01); B01J 20/08 (2006.01); B01J 20/28 (2006.01); B28B 19/00 (2006.01); C01F 7/021 (2022.01); C04B 11/00 (2006.01); C04B 11/02 (2006.01); C25B 1/01 (2021.01); C25B 1/50 (2021.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
B01J 20/3441 (2013.01); B01D 61/461 (2022.08); B01J 20/08 (2013.01); B01J 20/28004 (2013.01); B01J 20/28016 (2013.01); B01J 20/3433 (2013.01); B28B 19/0092 (2013.01); C01F 7/021 (2013.01); C04B 11/005 (2013.01); C04B 11/02 (2013.01); C25B 1/01 (2021.01); C25B 1/50 (2021.01); B01D 2313/40 (2013.01); C01P 2004/60 (2013.01); C01P 2006/80 (2013.01); C04B 2111/0062 (2013.01);
Abstract
A method of recovering desalinated activated alumina (AA) beads from a composition including salt laden (high salt absorbed) activated alumna (AA) beads and free anions and free cations, comprising the step of electrodialysis of the composition to reduce salt content of the activated alumina (AA) beads to produce a stream comprising the desalinated activated alumina (AA) beads.