Isoparaffin-olefin alkylation
CA 2103334 C · Owner: Phillips Petroleum Company · Inventors: Randolph, Bruce B.; Anderson, Richard L.; Hensley, Harvey D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The inventive process includes reacting a mixture of olefin hydrocarbons and paraffin hydrocarbons within a reaction zone having a, lower portion, an upper portion and a volume, in the presence of a, sulfolane and hydrofluoric acid catalyst. This alkylation process includes introducing the hydrocarbon mixture into the lower portion of the reaction zone which contains the sulfolane and hydrofluoric acid catalyst and passing the resultant alkylate reaction effluent which includes, hydrocarbons and the catalyst from the upper portion of the reaction zone to a settling zone. Within the settling zone a phase separation occurs so, as to produce a hydrocarbon phase and a catalyst phase. The …
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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
- Filed November 17, 1993 and granted December 26, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 17, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 2015.
- 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.