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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.:

US 9309134 B1

PDFFull Text
Expired
Date of Patent:
Apr. 12, 2016

Filed:

Apr. 27, 2009

Method for purifying aqueous compositions

Applicant:

Alessandra Pastacaldi, Rosignano Solvay-Livorno, IT;

Inventor:

Alessandra Pastacaldi, Rosignano Solvay-Livorno, IT;

Assignee:

SOLVAY (SOCIETE ANONYME), Brussels, BE;

Attorney:

Jarrod N. Raphael

Primary Examiner:

Nam Nguyen

Assistant Examiner:

Claire Perrin

Int. Cl.
CPC ...
B01D 21/00 (2006.01); B03D 3/00 (2006.01); C02F 1/52 (2006.01); C01B 7/00 (2006.01); C01B 33/26 (2006.01); C02F 1/60 (2006.01); C02F 1/68 (2006.01); C02F 1/00 (2006.01); B01D 37/00 (2006.01); C02F 1/66 (2006.01); C02F 9/00 (2006.01);
U.S. Cl.
CPC ...
C02F 1/60 (2013.01); C02F 1/5245 (2013.01); C02F 1/66 (2013.01); C02F 9/00 (2013.01); C02F 2301/08 (2013.01);
Abstract

Method for purifying an aqueous composition by removing silicon therefrom, according to which a compound comprising aluminum is added to the aqueous composition in order to obtain a molar aluminum content greater than the molar silicon content in said composition, the pH of the composition is controlled and maintained at a value higher than or equal to 8 and lower than or equal to 10, and the precipitate formed is separated from the aqueous suspension obtained.

Find Patent Forward Citations

Pastacaldi, Alessandra. (2016). Method for purifying aqueous compositions (U.S. Patent No. 9309134). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9309134

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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