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Expired Canadian patentCanada

Co-production of aromatics and olefins from paraffinic feedstocks

CA 1293270 C · Owner: Mobil Oil Corporation · Inventors: Nemet-Mavrodin, Margaret

CIPO record

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Abstract From the Canadian patent

There is provided a process for converting a C5-C10 paraffinic feedstock into other hydrocarbons including C6-C8 aromatics, C2-C4 olefins, C9+ aromatics and C1-C3 paraffins. By using a catalyst comprising (1) a binder and (2) ZSM-5 or ZSM-11, said catalyst having low acid catalytic activity as measured by an alpha value of 25 or less the selectivity to the, more desired C6-C8 aromatics and C2-C4 olefins is increased. The low alpha value of the catalyst may be achieved by deactivating the catalyst under conditions comprising steaming high, temperature calcining and/or coking.

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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 December 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 28, 1988
GrantedDecember 17, 1991
Term endedDecember 17, 2008
Patent numberCA 1293270 C
Classification (IPC)C07C9/02 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedDec 28, 1988Patent grantedDec 17, 1991Term endedDec 17, 2008

Sources & verification

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