Synthesis of propylbenzene from toluene and ethylene

Details Synthesis of propylbenzene from toluene and ethylene Synthesis of propylbenzene from toluene and ethylene

C - Chemistry, Metallurgy

07

C

C07C 2/72 (2006.01)

Patent

CA 2681408

Methods are provided for producing alkylbenzenes, such as propylbenzene, from aromatics, such as toluene, and alkenes, such as ethylene. Such methods comprise combining the toluene with about 100 ppm to about 350 ppm water and alkali metal catalyst, activating the catalyst at about 18O°C to about 220°C, adding the ethylene and conducting the synthesis reaction at about 130°C to about 15O°C.

L'invention propose des procédés pour produire des alkylbenzènes, tels du propylbenzène, à partir d'aromatiques, tels du toluène, et des alcènes, tels de l'éthylène. De tels procédés comportent la combinaison du toluène avec environ 100 ppm à environ 350 ppm d'eau et de catalyseur de métal alcalin, l'activation du catalyseur entre environ 180°C et environ 220°C, l'ajout de l'éthylène et la conduite de la réaction de synthèse entre environ 130°C et environ 150°C.

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