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:
Oct. 01, 2019
Filed:
Dec. 04, 2015
Ecolab Usa Inc., St. Paul, MN (US);
Jing Wang, Aurora, IL (US);
Kevin O'Brien, Saint Charles, IL (US);
Mingli Wei, Naperville, IL (US);
Weiguo Cheng, Naperville, IL (US);
Jinfeng Wang, Aurora, IL (US);
Kevin McDonald, Oak Park, IL (US);
Xinyu C. Huang, Naperville, IL (US);
Ecolab USA Inc., St. Paul, MN (US);
Abstract
Methods and compositions for improving performance of flocculants in an industrial production process. Methods include pH triggered cross-linking reaction between a flocculating agent, such as dextran, and a composition comprising a boronic acid-containing polymer. The pH trigger can be provided by a fluid having a pH of 8 or more. The production process can be a Bayer Process and the fluid is caustic liquor or slurry in the fluid circuit of the Bayer, wherein the reaction time is reduced over conventional methods and the cross-linked dextran composition effectuates improved flocculation of the trihydrate particles.