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. 17, 2009
Filed:
Dec. 01, 2005
Applicants:
Walter N. Simmons, Durham, NC (US);
Walter J. Simmons, Martinsburg, WV (US);
Inventors:
Walter N. Simmons, Durham, NC (US);
Walter J. Simmons, Martinsburg, WV (US);
Assignee:
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/142 (2006.01); C01B 33/143 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates to a process for converting silica to polysilicate gels or hydrogels by combining an aqueous silica source with a COfeed stream as the gel initiator, whereby the reaction stream is propelled at high velocity and turbulence maintaining the COuptake rate in the reaction stream. The invention also relates to a process for converting silica to polysilicate by pre-carbonating water at pressures of equal to or greater than 100 psig before initiating the polysilicate reaction.