Process for improving activity of tellurium containing metal oxide catalysts
CA 1189844 A · Owner: Nitto Chemical Industry Co. Ltd. · Inventors: Nakamura, Toshio; Kiyomiya, Yutaka; Sasaki, Yutaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for improving the activity of tellurium containing metal oxide catalysts useful as catalysts for oxidation, ammoxidation or oxidative dehydrogenation of organic compounds by heating the catalysts together with a tellurium containing solid to a temperature up to about 900°C in a gaseous atmosphere. The process can be effectively applied not only to deteriorated or spent catalysts the activity of which has been deteriorated due to use for a long period of time, but also to fresh catalysts. The tellurium containing solid used as an activity improving agent may be a member selected from the group consisting of (i) tellurium; oxides, hydroxides and organic compounds of tellurium; or …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 2, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2002.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.