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. 12, 2016
Filed:
Apr. 27, 2009
Applicant:
Alessandra Pastacaldi, Rosignano Solvay-Livorno, IT;
Inventor:
Alessandra Pastacaldi, Rosignano Solvay-Livorno, IT;
Assignee:
SOLVAY (SOCIETE ANONYME), Brussels, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
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.