Process for the isomerization of olefins
CA 1238925 A · Owner: Labofina, S.A. · Inventors: De Clippeleir, Georges E.M.J.; Cahen, Raymond M.; Debras, Guy L.G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the isomerization of n-butenes comprising contacting, at elevated temperatures a feed, containing n-butenes with a catalyst comprising a crystalline silica polymorph of the silicalite type in the presence of stream to recover a steam containing isobutene. The reaction can be carried out in either liquid or vapor phase.
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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 July 5, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 5, 2005.
- 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.