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:
Oct. 22, 2013
Filed:
Mar. 17, 2010
Daniele Bianchi, Arese-Milano, IT;
Rossella Bortolo, Novara, IT;
Chiara Busto, Trecate-Novara, IT;
Carla Lazzari, Cornaredo-Milano, IT;
Daniele Bianchi, Arese-Milano, IT;
Rossella Bortolo, Novara, IT;
Chiara Busto, Trecate-Novara, IT;
Carla Lazzari, Cornaredo-Milano, IT;
Polimeri Europa S.p.A., Brindisi, IT;
Abstract
A process to activate a titanium silicalite catalyst for the oxidation of benzene to phenol is provided. The catalyst is activated in the reactor for the oxidation by feeding to a reactor containing the titanium silicalite catalyst, during a time of from 2 to 6 hours, at a temperature ranging from 20 to 120° C., an aqueous solution of ammonium acid fluoride in a concentration ranging from 0.1% to 1% by weight; and hydrogen peroxide in a concentration ranging from 3% to 10% by weight; feeding water to the reactor at the end of the reaction; and drying or calcining the catalyst contained in the reactor to obtain the activated catalyst. The catalyst is represented by the formula:TiO.(1−)SiO