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:
Mar. 15, 2016
Filed:
Nov. 20, 2007
Applicants:
Jing Wang, Aurora, IL (US);
Xiaojin Harry LI, Bartlett, IL (US);
Heinrich Enoch Bode, Aurora, IL (US);
Inventors:
Jing Wang, Aurora, IL (US);
Xiaojin Harry Li, Bartlett, IL (US);
Heinrich Enoch Bode, Aurora, IL (US);
Assignee:
Nalco Company, Naperville, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F 1/54 (2006.01); C22B 21/00 (2006.01); C01F 7/06 (2006.01); C01F 7/14 (2006.01); C22B 1/00 (2006.01); C01F 7/04 (2006.01);
U.S. Cl.
CPC ...
C22B 21/0015 (2013.01); C01F 7/0646 (2013.01); C01F 7/144 (2013.01); C22B 1/00 (2013.01); C01F 7/046 (2013.01); C02F 1/54 (2013.01);
Abstract
A hyperbranched polyglycerol is employed as a process stabilization aid of pregnant liquor of a Bayer process of producing alumina from bauxite. The hyperbranched polyglycerol has a molecular weight of from about 1,000 to about 1,000,000.