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:
Jul. 09, 2002
Filed:
Jan. 29, 2001
Applicant:
Inventors:
Chiaki Izumikawa, Tokyo, JP;
Kazumasa Tezuka, Okayama, JP;
Kazuto Ito, Okayama, JP;
Hitoshi Atobe, Kawasaki, JP;
Toraichi Kaneko, Kawasaki, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 5/368 ; B01D 5/370 ; B01D 5/334 ; C01B 7/19 ;
U.S. Cl.
CPC ...
B01D 5/368 ; B01D 5/370 ; B01D 5/334 ; C01B 7/19 ;
Abstract
A method for decomposing nitrogen fluoride or sulfur fluoride, comprising contacting gaseous nitrogen fluoride or sulfur fluoride with a solid reagent comprising elemental carbon, one or more of the alkaline earth metal elements and optionally one or more of the alkali metal elements, to fix the fluorine component in the nitrogen fluoride or sulfur fluoride in said reagent.