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Expired Canadian patentCanada

Method of preparing a synthesis gas conversion catalyst and use of catalyst so prepared

CA 1135678 A · Owner: Mobil Oil Corporation · Inventors: Butter, Stephen A.; Chester, Arthur W.; Schwartz, Albert B.

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Abstract From the Canadian patent

A catalyst useful for conversion of synthesis gas to naphtha is prepared by carbon monoxide treatment of a single particle composite of iron oxide hydrogel, matrix and crystalline zeolite having a silica/alumina ratio greater than 12 and a constraint index of 1 to 12. The iron oxide is present in the composite as a powder and may be created in situ by oxidation of iron powder. m e carbon monoxide may be a component of synthesis gas. The product naphtha is characterised by specific details of boiling range and composition.

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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 November 16, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 16, 1999.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 15, 1979
GrantedNovember 16, 1982
Term endedNovember 16, 1999
Patent numberCA 1135678 A
Classification (IPC)B01J31/20 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedNov 15, 1979Patent grantedNov 16, 1982Term endedNov 16, 1999

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