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:
Nov. 11, 2008
Filed:
Dec. 27, 2004
Gopalakrishnan G. Juttu, Sugar Land, TX (US);
Alla Konstantin Khanmamedova, Sugar Land, TX (US);
Scott F. Mitchell, The Woodlands, TX (US);
Gopalakrishnan G. Juttu, Sugar Land, TX (US);
Alla Konstantin Khanmamedova, Sugar Land, TX (US);
Scott F. Mitchell, The Woodlands, TX (US);
Saudi Basic Industries Corporation, Riyadh, SA;
Abstract
This invention relates to a process for making a germanium-zeolite without using fluoride compounds. The zeolite is preferably a MFI-type structure, most preferably a ZSM-5 MFI zeolite. The germanium-zeolite is synthesized essentially in the absence of fluoride compounds from an aqueous gel containing a silica source, a germanium source, an aluminum source and a structure directing agent in the presence of an acid which does not contain fluorine, such as sulfuric acid, acetic acid, nitric acid, phosphoric acid hydrochloric acid or formic acid.