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:
Mar. 23, 1999
Filed:
Jun. 23, 1997
Applicant:
Inventors:
Assignee:
Ube Industries, Ltd., Yamaguchi, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; C04B / ;
U.S. Cl.
CPC ...
501153 ; 501 80 ; 501120 ; 423600 ; 502439 ; 502330 ; 502344 ; 502346 ; 502355 ; 502334 ; 502337 ; 502341 ; 502342 ; 502524 ;
Abstract
A porous lithium aluminate carrier for catalyst has a spinel structure which has a mean pore diameter in the range of 40 to 1,000 angstroms and a total pore volume in the range of 0.2 to 1.5 mL/g. The porous lithium aluminate carrier can be used for supporting a catalyst compound containing a platinum group metal. The catalyst on the carrier can be favorably employed for promoting catalytic reaction of a nitrite ester and carbon monoxide to prepare a carbonate diester such as dimethyl carbonate.