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.

Date of Patent:
Oct. 30, 2001

Filed:

Oct. 28, 1999
Applicant:
Inventors:

Manabu Ohira, Tokyo, JP;

Junichi Torisu, Kawasaki, JP;

Yasuyuki Hoshino, Kawasaki, JP;

Yuji Sakai, Kawasaki, JP;

Andrei S. Kuznetsov, Saint-Petersburg, RU;

Assignee:

Showa Denko K. K., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 7/00 ; B01D 4/700 ; B01D 5/000 ; C01D 3/02 ; C09K 3/00 ;
U.S. Cl.
CPC ...
C01B 7/00 ; B01D 4/700 ; B01D 5/000 ; C01D 3/02 ; C09K 3/00 ;
Abstract

A treating method comprising contacting a fluorine-containing interhalogen compound first with a treating agent for the fluorine component and then with a treating agent for the halogen component, treating agents therefor, and a method for treating exhaust gas containing a fluorine-containing interhalogen compound, comprising filling a treating agent for the fluorine component into the internal cylinder of a treating apparatus having a double cylinder structure consisting of an internal cylinder and an external cylinder, filling a treating agent for the halogen component into the external cylinder, feeding exhaust gas containing a fluorine-containing interhalogen compound into the internal cylinder to travel the internal cylinder and the external cylinder in this order, and then discharging the treated gas from the external cylinder.


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