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:
Nov. 12, 1996
Filed:
Oct. 27, 1995
Applicant:
Inventors:
Christopher B Lind, Syracuse, NY (US);
Michael A Ware, Mississauga, CA;
Assignee:
General Chemical Corporation, , DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F / ; B01J / ;
U.S. Cl.
CPC ...
210702 ; 210723 ; 210728 ; 210928 ; 252175 ; 2523132 ; 10628734 ; 1621816 ; 4233281 ; 423338 ;
Abstract
A stable activated silica sol is made by reacting sodium aluminum sulfate and a solution of silica. This solution removes suspended particles from aqueous streams rapidly and effectively. The silica sol is stable for many days and thus can be prepared off-site and transported to the point of use. Further, the activated silica or colloidal silica sol solution of the invention can be continuously added to water and waste water streams, or paper making pulps, stocks and furnishes, without danger of solidifying in the transport systems.