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. 19, 1991
Filed:
Jul. 24, 1989
Applicant:
Inventors:
Masao Nakano, Hikari, JP;
Kazuhiko Sekizawa, Shinnanyo, JP;
Toshio Hironaka, Tokuyama, JP;
Kiyotaka Oyama, Hikari, JP;
Seiichi Asano, Hikari, JP;
Assignee:
Tosoh Corporation, Shinnanoyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
570208 ; 423328 ; 502 60 ; 502 79 ; 570206 ;
Abstract
Disclosed is a shaped zeolite catalyst used for liquid phase organic reactions. The shaped zeolite catalyst is composed of substantially spherical particles having a particle diameter substantially in the range of from 70 to 300 .mu.m, and which has fine pores having a pore volume of 0.4 to 1 cc per gram of the shaped catalyst and a median pore diameter based on the pore volume of 1,000 to 5,500 .ANG..