Process for producing ethylphenols
CA 1053263 A · Owner: Labofina S.A. · Inventors: Camerman, Philippe J.A.; De Radzitzky D'Ostrowick, Pierre M.J.G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for producing ethylohenol comprising reacting in liquid phase, diethylbenzene with a molecular oxygen containing gas, at a temperature between 100 and 180°C until, 5 to 30% of the diethylbenzene feed is converted into diethylbenzene hydroperoxide, withdrawing the reaction mixture evaporating the unconverted diethylbenzene therefrom to obtain a concentrate containing at least 40% of diethylbenzene hydroperoxide, and recycling the unconverted diethylbenzene to the oxidation stage, mixing the diethylbenzene hydroperoxide concentrate with a solvent selected from the group consisting of low molecular weight aliphatic alcohols ketones and mixtures thereof, decomposing said hydroperoxide …
Read the whole patent
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 April 24, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 24, 1996.
- 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.