Epoxidation process for manufacture of olefin oxide and alcohol
CA 2101006 A1 · Owner: Texaco Chemical Inc. · Inventors: Keating, Kenneth Patrick; Marquis, Edward Thomas; Mueller, Mark Allan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An epoxidation reaction wherein: an olefin and an organic hydroperoxide preferably, propylene and, tertiary butyl hydroperoxide are reacted in a primary reaction zone in a liquid phase with an organic solvent, preferably tertiary butyl alcohol in the presence of a soluble molybdenum catalyst at a ratio of propylene to tertiary butyl hydroperoxide of from about 0.9:1 to about 3:1 at a reaction temperature, from about 100°C to about 140°C and a residence time sufficient to convert about 85 to 95% of the tertiary butyl hydroperoxide and form a primary epoxidation zone reaction product; fractionating in, a primary fractionation zone, the primary zone reaction product into a primary distillate …
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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 July 21, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 21, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 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.