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Expired Canadian patentCanada

Alcohols production by hydrogenation of carboxylic acids

CA 1264727 C · Owner: Bp Chemicals Limited · Inventors: Williams, Peter Sefton; Kitson, Melanie

CIPO record

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Abstract From the Canadian patent

Case 5930(2), ABSTRACT OF THE DISCLOSURE ALCOHOLS PRODUCTION BY HYDROGENATION OF CARBOXYLIC ACIDS Ethanol is produced from acetic acid or propanol is produced from propionic acid by contacting either acetic acid or propionic acid in the vapour phase with hydrogen at elevated temperature and a pressure in the range from 1 to 150 bar in the presence of a catalyst comprising as essential components (i) a noble metal of Group VIII of the Periodic Table of the Elements and (ii) rhenium, optionally on a support for example a high surface area graphitised carbon.

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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 January 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 11, 1986
GrantedJanuary 23, 1990
Term endedJanuary 23, 2007
Patent numberCA 1264727 C
Classification (IPC)C07C29/13 +2 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedApril 11, 1986Patent grantedJan 23, 1990Term endedJan 23, 2007

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.