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:
Sep. 07, 1993
Filed:
Dec. 11, 1991
Applicant:
Inventors:
Hisaki Abe, Niigata, JP;
Toshio Kondoh, Niigata, JP;
Hideki Fukuda, Niigata, JP;
Mayumi Takahashi, Niigata, JP;
Tetsuo Aoyama, Niigata, JP;
Masahiro Miyake, Niigata, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C01B / ; C02F / ; C02F / ;
U.S. Cl.
CPC ...
502180 ; 210756 ; 210757 ; 423219 ; 423235 ; 502406 ; 502413 ; 502423 ; 502437 ;
Abstract
The present invention relates to specific activated carbon materials including from 1 to 5% by weight of nitrogen, from 3 to 30% by weight of oxygen and from 40 to 95% by weight of carbon, and having an average pore radius of from 15 to 30 .ANG., with the proviso that mesopores occupy at least 50% by volume based on the total pore volume, and also relates a process for the preparation thereof, and to the use thereof as catalysts.