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Expired Canadian patentCanada

Catalyst composition

CA 1061315 A · Owner: Bp Chemicals International Limited · Inventors: Krosnar, Thomas C.; Gasson, Edward J.; Marrian, Stanley F.

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Abstract From the Canadian patent

The present invention relates to a heat treated catalyst composition which is suitable for catalysing processes involving the oxidation or ammoxidation of olefins to the corresponding unsaturated aldehydes, acids and nitriles respectively. The heat-treated catalyst composition contains antimony and between 0.05 to 1.0 atom % of molybdenum or tungsten present as an oxide or other compound and is further promoted by addition of an oxide or other compound of uranium and/or vanadium present in the composition in an amount from 0.005 to 0.5 atom %.

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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 August 28, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 28, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedAugust 28, 1979
Term endedAugust 28, 1996
Patent numberCA 1061315 A
Classification (IPC)B01J21/06 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedAug 28, 1979Term endedAug 28, 1996

Sources & verification

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