Effect of solvents on propylene epoxidation with the TS-1 catalyst

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作者：

Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China ^{[1
]}

不详 ^{[2
]}

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来源：

Qinghua Daxue Xuebao/Journal of Tsinghua University | 2007年 / 47卷 / 09期

关键词：

Catalysts - Epoxidation - Reaction kinetics - Solubility - Sorption - Titanium;

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摘要：

Solvents have an important effect on the epoxidation of propylene catalyzed by TS-1. Experimental results show that the catalytic epoxidation activity of various solvents can be ranked as: methanol > 2-propanol > 2-butanol > acetonitrile > acetone > tetrahydrofuran. The reaction mechanism was analyzed to study the effects of the solvents on the epoxidation in terms of the electronic effect, the steric effect, the solvent polarity, the effect of solvent on sorption and reactant diffusion, the alcohol oxidation, the etherization of PO, the deactivation of TS-1 and the propylene solubility in the solvents. The electronic effect, steric effect, and solvent polarity were the main effects. This work provides a basis for choosing solvents for these reactions for further industrialization.

引用

页码：1511 / 1515