Process for the production of chlorinated and/or fluorinated...

C - Chemistry – Metallurgy – 07 – C

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C07C 17/269 (2006.01) C07C 21/067 (2006.01)

Patent

CA 2739924

The present invention provides one-step processes for the production of chlorinated and/or fluorinated propenes. The processes provide good product yield with low, e.g., less than about 20%, or even less than 10%, concentrations of residues/by-products. Advantageously, the processes may be conducted at low temperatures relative to conventional processes, so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts may provide enhancements to conversion rates and selectivity over those seen in conventional processes, as may adjustments to the molar ratio of the reactants.

La présente invention concerne des procédés en une seule étape pour la production de propènes chlorés et/ou fluorés. Les procédés permettent dobtenir un bon rendement de produits avec de faibles, par exemple environ moins de 20%, voire moins de 10%, concentrations de résidus/sous-produits. Avantageusement, les procédés peuvent être réalisés à faible température comparés aux procédés classiques, de sorte quils permettent des économies dénergie, et/ou à des pressions supérieures de sorte quils permettent de réaliser des meilleures performances. Lutilisation de catalyseurs peut apporter des améliorations aux taux de conversion et de sélectivité sur ceux obtenus dans des procédés conventionnels, tout comme peuvent des ajustements au rapport molaire des réactifs.

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