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. 06, 2011
Filed:
Aug. 09, 2002
Abderrahmane Chettouf, Amsterdam, NL;
Carolus Matthias Anna Maria Mesters, Amsterdam, NL;
Gerardus Petrus Lambertus Niesen, Amsterdam, NL;
Abderrahmane Chettouf, Amsterdam, NL;
Carolus Matthias Anna Maria Mesters, Amsterdam, NL;
Gerardus Petrus Lambertus Niesen, Amsterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
The invention relates to a process for the purification of titania by treating the titania with an aqueous solution having one or more ammonium compounds at elevated temperatures, separating the titania from the aqueous solution, drying the titania and, optionally, calcining the dried titania. More especially the invention relates to the removal of sulphur (mainly present in the form of sulphate compounds) from the titania. The titania purified according to the above process is especially suitable for use as a catalyst carrier.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile