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. 16, 1991
Filed:
Oct. 13, 1989
Applicant:
Inventors:
Gillian M Moody, Brighouse, GB;
Christine A Rushforth, Bradford, GB;
Assignee:
Allied Colloids Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F / ;
U.S. Cl.
CPC ...
423121 ; 209-5 ; 210727 ; 210730 ; 210733 ; 210734 ;
Abstract
Red mud in Bayer process liquors are flocculated using dextran and synthetic anionic polymer in the same stage, usually added separately to the liquor. The liquor may be the primary settler slurry, the secondary clarification liquor or one or more of the red mud washing stages. The process is of particular advantage where the liquors are high in carbonate content and/or total alkalinity.
Quick Actions:
Moody, Gillian. (1991). Recovery of alumina from bauxite (U.S. Patent No. 5008089). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5008089
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile