Process for preparing .alpha., .omega.-alkenols

Details Process for preparing .alpha., .omega.-alkenols Process for preparing .alpha., .omega.-alkenols

C - Chemistry, Metallurgy

07

C

C07C 33/025 (2006.01) C07C 29/60 (2006.01)

Patent

CA 2221530

The invention relates to a process for preparing .alpha.,.omega.-alkenols by catalytic monodehydration of .alpha.,.omega.-alkanediols over a catalyst system comprising the combination of aluminum phosphate and barium phosphate. The gas-phase dehydration which occurs over this catalyst at temperatures of from 300 to 500°C advantageously combines selectivity with a high space-time yield while simultaneously enabling a high throughput over the catalyst.

L'invention porte sur une méthode pour préparer des alpha-, oméga-alcénols par monodéshydratation d'alpha-, oméga-alcanediols sur un système catalytique, combinaison de phosphate d'aluminum et de phosphate de baryum. La déshydratation en phase gazeuse qui se produit au-dessus de ce catalyseur à des températures de 300 à 500 degrés C combine avantageusement la sélectivité avec un rendement élevé en espace-temps, tout en permettant simultanément un fort débit au-dessus du catalyseur.

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