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:
Feb. 08, 2005

Filed:

Feb. 12, 1999
Applicants:

Takuo Hibi, Ichihara, JP;

Hiroaki Abekawa, Sodegaura, JP;

Kohei Seki, Chiba, JP;

Tatsuya Suzuki, Niihama, JP;

Tetsuya Suzuta, Ichihara, JP;

Kiyoshi Iwanaga, Ichihara, JP;

Takahiro Oizumi, Sendai, JP;

Inventors:

Takuo Hibi, Ichihara, JP;

Hiroaki Abekawa, Sodegaura, JP;

Kohei Seki, Chiba, JP;

Tatsuya Suzuki, Niihama, JP;

Tetsuya Suzuta, Ichihara, JP;

Kiyoshi Iwanaga, Ichihara, JP;

Takahiro Oizumi, Sendai, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B007/04 ; B01J023/46 ; B01J037/00 ; B01J021/06 ;
U.S. Cl.
CPC ...
Abstract

A process for producing chlorine by oxidizing hydrogen chloride with oxygen. The process uses various supported ruthenium catalysts or a catalyst system containing (A) an active component of a catalyst and (B) a compound having thermal conductivity of a solid phase measured by at least one point within a range from 200 to 500° C. of not less than 4 W/m. ° C.


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