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. 06, 1999
Filed:
Aug. 08, 1996
Charles W Rooks, Houston, TX (US);
Anthony K Uriarte, Pensacola, FL (US);
Michael J Gross, Cantonment, FL (US);
Solutia Inc., St. Louis, MO (US);
Abstract
A continuous process for converting benzene or a derivative thereof to phenol or a derivative thereof comprises continuously activating .alpha.-sites on a zeolite catalyst by contacting the catalyst with a free oxidant activator, thereby producing an activated zeolite hydroxylation catalyst, and separately and continuously contacting benzene or a derivative thereof with the activated zeolite catalyst, thereby producing phenol or a derivative thereof. The benzene or derivative thereof can be separately contacted with the activated zeolite catalyst by (a) contacting in a reaction vessel that is physically separate and distinct from the vessel in which the catalyst is contacted with the free oxidant activator, (b) contacting in a zone of a vessel that is separate from the zone in that same vessel in which the catalyst is contacted with the free oxidant activator, or (c) contacting with the catalyst in a reaction vessel in a first time pulse, with the benzene or derivative thereof being contacted with the activated zeolite catalyst in a second time pulse in the same reaction vessel which does not overlap substantially with the first time pulse.