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. 08, 2015
Filed:
Oct. 02, 2013
Applicant:
China Petrochemical Development Corporation, Taipei (Taiwan), Taipei, TW;
Inventors:
Assignee:
China Petrochemical Development Corporation, Taipei, TW;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 37/08 (2006.01); C07C 37/60 (2006.01); B01J 23/75 (2006.01); B01J 29/40 (2006.01); B01J 29/46 (2006.01); B01J 35/00 (2006.01); B01J 37/00 (2006.01); B01J 37/10 (2006.01);
U.S. Cl.
CPC ...
C07C 37/08 (2013.01); B01J 23/75 (2013.01); B01J 29/40 (2013.01); B01J 29/46 (2013.01); B01J 35/002 (2013.01); B01J 37/0018 (2013.01); B01J 37/10 (2013.01); C07C 37/60 (2013.01);
Abstract
A method for hydroxylation of phenol is disclosed. The method includes the step of performing a reaction of phenol and hydrogen peroxide to form diphenol in the presence of solid catalyst with zeolite framework, wherein the solid catalyst includes silicon oxide, titanium oxide and cobalt oxide. The solid catalyst used in the preparation of diphenol of the present invention has high conversion rate of diphenol, selectivity of diphenol and higher utilization rate of hydrogen peroxide without using high concentration of hydrogen peroxide.