Production of cyclohexanone
CA 1109855 A · Owner: Allied Corporation · Inventors: Fisher, William B.; Van Peppen, Jan F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for promoting the selective hydrogenation of phenol to cyclohexanone in the presence of an improved palladium-on-carbon catalyst which comprises effecting the hydrogenation reaction in the presence of an in situ promoter preferably from the group consisting of sodium hydroxide sodium, carbonate, and sodium phenate. The characteristic properties of the palladium-on-carbon catalyst used in this process are significantly different from commercially available catalyst, and the present invention involves apparent interaction of the in situ promoter with the present unique catalyst. Respecting safety of operation, it is important that the present process and catalyst permit hydrogenation …
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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 September 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
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.