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. 03, 2002
Filed:
Jan. 26, 2001
Applicant:
Inventors:
Hideyuki Kambe, Izumiotsu, JP;
Shukichi Ugamura, Suita, JP;
Yuuji Shimasaki, Otsu, JP;
Shinji Takasaki, Settsu, JP;
Assignee:
Nippon Shokubai Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 4/109 ; C07C 4/314 ;
U.S. Cl.
CPC ...
C07C 4/109 ; C07C 4/314 ;
Abstract
Here is provided a process capable of efficiently carrying out a gas-phase dehydration reaction comprising contacting a raw material gas with a solid oxide catalyst containing an alkali metal element to allow reaction to progress by inhibiting decomposition of the raw material and the objective product. This process comprises using a sintered oxide comprising an alkali metal element and silica and/or alumina as a loading material for preheating of the raw material gas and/or as a supporting material for fixation of the position of the catalyst.