Epoxidation of Propylene with O2 Catalyzed by EuCl3

Wen Ming Liu; Fen Liu; Zhao Ping Chen; Feng Yi Li

doi:10.4028/www.scientific.net/AMR.550-553.375

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 550-553Epoxidation of Propylene with O2 Catalyzed by...

Epoxidation of Propylene with O₂ Catalyzed by EuCl₃

Abstract:

The formation of propylene oxide from propylene by direct oxidation with O₂ has been studied with catalysts of rare earth chloride under different carboxylic acids and solvents, and the mechanism of this reaction has been discussed preliminarily. Significant PO-formation was only observed when catalyzed by EuCl₃ and in the presence of zinc powder and carboxylic acids. In using carboxylic acids, propanoic acid is the best for the epoxidation of propylene. The yields of the epoxide became higher than those without solvents, but basic substance was not suitable as solvent. In the catalytic system of EuCl₃, zinc powder and carboxylic acids, EuCl₃ plays a role in transferring electron, zinc powder was the e- donor and carboxylic acids was the H⁺ donor. The mechanism was consistent with the result of the experiment.

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Periodical:

Advanced Materials Research (Volumes 550-553)

Pages:

375-378

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.550-553.375

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Online since:

July 2012

Authors:

Wen Ming Liu*, Fen Liu, Zhao Ping Chen, Feng Yi Li

Keywords:

Catalyst, Epoxidation, Oxygen, Propylene, Rare Earth Chloride

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* - Corresponding Author

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