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:
May. 09, 1989
Filed:
Dec. 10, 1987
Tadamitsu Kiyoura, Kanagawa, JP;
Masanobu Ajioka, Fukuoka, JP;
Naoshi Fujimoto, Fukuoka, JP;
Toshihide Suzuki, Fukuoka, JP;
Yasuo Kogure, Kanagawa, JP;
Tokio Nagayama, Kanagawa, JP;
Kazuo Kanaya, Kanagawa, JP;
Mitsui Toatsu Chemicals, Incorporated, Tokyo, JP;
Abstract
Chlorine can be efficiently produced at a low temperature and with a high hourly space velocity by oxidizing hydrogen chloride with an oxygen-containing gas in the presence of a catalyst obtained by calcining a compound, which has in turn been obtained by reacting chromium nitrate, chromium chloride, the chromium salt of an organic acid or the like with ammonia, or by calcining a mixture of the compound and a silicon compound, preferably, at a temperature lower than 800.degree. C.