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. 10, 2010
Filed:
Dec. 29, 2006
Applicants:
Dmitri L. Kouznetsov, Aurora, IL (US);
Jianjun Liu, Aurora, IL (US);
David H. Slinkman, Lombard, IL (US);
Inventors:
Dmitri L. Kouznetsov, Aurora, IL (US);
Jianjun Liu, Aurora, IL (US);
David H. Slinkman, Lombard, IL (US);
Assignee:
Nalco Company, Naperville, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates ways to increase the output of a high quality product from the aluminum hydroxide recovery processes such as the Bayer process. The invention is a method of increasing the size of precipitated aluminum hydroxide while not reducing the total production amounts. The invention relates to the use of a crystal growth modifier compositions added to the precipitation liquor to increase the particle size distribution of the precipitated alumina trihydrate.