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. 31, 2002
Filed:
Jul. 25, 2001
Applicant:
Inventors:
Soofin Cheng, Taipei, TW;
Chia-Lung Tsai, Kaohsiung, TW;
Berryinne Chou, Kaohsiung, TW;
Debasish Das, Taipei, TW;
Assignee:
Chinese Petroleim Corp., , TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 5/004 ; C07C 4/529 ; C07C 4/536 ;
U.S. Cl.
CPC ...
C07C 5/004 ; C07C 4/529 ; C07C 4/536 ;
Abstract
A method of oxidizing trimethylphenol (TMP) to trimethylbenzoquinone (TMBQ) by various molecular sieves containing various transition metals. In this method, TMP, a molecular sieve containing a transition metal in its framework, an oxidant and a solvent are mixed together to form a reaction system. The reaction system reacting at a temperature of about room temperature to 150° C. to obtain TMBQ, and the concentration of TMP is about 5-60% wt.