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:
Dec. 08, 2020
Filed:
Jul. 25, 2018
Applicant:
Ifp Energies Nouvelles, Rueil-Malmaison, FR;
Inventors:
Assignee:
IFP Energies Nouvelles, Rueil-Malmaison, FR;
Primary Examiner:
Int. Cl.
CPC ...
C01F 7/34 (2006.01); C01F 7/44 (2006.01); C01F 7/14 (2006.01); B01J 13/00 (2006.01);
U.S. Cl.
CPC ...
C01F 7/34 (2013.01); B01J 13/0056 (2013.01); C01F 7/141 (2013.01); C01F 7/441 (2013.01); C01P 2002/60 (2013.01); C01P 2006/22 (2013.01); C01P 2006/80 (2013.01);
Abstract
A novel alumina gel is described having an elevated dispersibility index, and in particular a dispersibility index greater than 70%, a crystallite size between 1 and 35 nm, and a sulphur content between 0.001% and 2% by weight, and a sodium content between 0.001% and 2% by weight, the weight percentages being expressed in relation to the total mass of alumina gel. The present invention also discloses the method for preparing said gel comprising at least one step of precipitating at least one aluminium salt, at least one step of heating the suspension obtained and a final heat treatment step for forming the alumina gel.