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:
Jun. 29, 1993
Filed:
Nov. 12, 1991
Applicant:
Inventors:
Shunji Inoue, Shinnanyo, JP;
Senshi Kasahara, Shinnanyo, JP;
Akinori Eshita, Shinnanyo, JP;
Masao Nakano, Hikari, JP;
Assignee:
Tosoh Corporation, Shinnanyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
4232132 ; 4232135 ; 423239 ; 502 64 ; 502 66 ; 502 71 ;
Abstract
A method for cleaning an exhaust gas, entailing bringing the exhaust gas into contact with a crystalline aluminosilicate having a primary particle size of not less than 0.5 micron, containing one or more kinds of metal ions selected from the group of metals of Group Ib and Group VIII of the periodic table in an amount ranging from about 0.2 to 0.8 equivalent relative to one gram atom of aluminum, and having a mole ratio of SiO.sub.2 /Al.sub.2 O.sub.3 of not less than about 20.