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. 25, 2017
Filed:
Feb. 26, 2014
Applicant:
Ecolab Usa Inc., St. Paul, MN (US);
Inventor:
Carl Nicholas Urbani, Lesmurdie, AU;
Assignee:
ECOLAB USA INC, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F 7/06 (2006.01); C22B 3/22 (2006.01); C22B 21/00 (2006.01);
U.S. Cl.
CPC ...
C01F 7/06 (2013.01); C22B 3/22 (2013.01); C22B 21/0015 (2013.01);
Abstract
The invention provides methods and compositions for improving dewatering of Bayer Process alumina trihydrate slurry. The method comprises adding an R-Succinic Compound (such as octadecenyl succinic acid, hexadecenyl succinic acid, and/or dodecenyl succinic acid) to the slurry. The R-Succinic Compound removes water that would otherwise be trapped within the filtered slurry cake and therefore reduces the energy needed to calcine the resulting solids.