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:
May. 09, 2017
Filed:
Dec. 20, 2005
Dennis Stamires, Dana Point, CA (US);
Paul O'connor, Hoevelaken, NL;
Erik Jeroen Laheij, Amstelveen, NL;
Charles Vadovic, Houston, TX (US);
Dennis Stamires, Dana Point, CA (US);
Paul O'Connor, Hoevelaken, NL;
Erik Jeroen Laheij, Amstelveen, NL;
Charles Vadovic, Houston, TX (US);
Albemarle Netherlands B.V., , NL;
Abstract
A process for preparing a catalyst is disclosed. The process generally comprises the steps of: (a) preparing a slurry comprising clay, zeolite, a sodium-free silica source, quasi-crystalline boehmite, and micro-crystalline boehmite, provided that the slurry does not comprise peptized quasi-crystalline boehmite; (b) adding a monovalent acid to the slurry; (c) adjusting the pH of the slurry to a value above about 3, and (d) shaping the slurry to form particles. This process results in attrition resistant catalysts with a good accessibility.