Study on the Process of Epoxidation of Liquid Propylene by Reaction-Controlled Phase Transfer Catalyst
Abstract: When using aqueous hydrogen peroxide as oxidant, the process of the reaction of the liquid pro-pylene epoxidation by reaction-controlled phase transfer catalyst was studied in the organic sol-vent including reaction-controlled phase transfer catalyst and H2O2; the effects of reaction tem-perature, the ratio of raw materials, reaction time and H2O2 concentration on the epoxidation were investigated. Under the reaction condition, the stability of H2O2 and the phase transforma-tion of the catalyst were also researched. On the basis, the reaction kinetics was explored preli-minarily. The results showed that the reaction rate increased with increasing temperature; the optimal reaction temperature was 60˚C considering the factor of H2O2 decomposition; the reaction time can be controlled at about 100 min; the mole rate of raw material ( (mole)) was 3:1; the catalytic activity was closely related to its phase transition; when the dosage of catalyst was 0.3%, the concentration of H2O2 in 1.8 - 2.2 mmol/g was appropriate. The reaction rate equation was established according to the reaction equilibrium. The order and the rate constant of reaction of epoxy propane were calculated using the MATLAB program.
文章引用: 黄方方 , 齐永红 , 沈寒晰 , 高 爽 , 史李刚 , 景艳妮 (2015) 反应控制相转移催化液相丙烯环氧化工艺研究。 合成化学研究， 3， 35-42. doi: 10.12677/SSC.2015.32006
Zhou, N., Xi, Z.W., Cao, G.Y. and Gao, S. (2003) Epoxidation of propylene by using [π-C5H5NC16H33]3[PW4O16] as catalyst and with hydrogen peroxide generated by 2-ethylanthrahydroquinone and molecular oxygen. Applied Catalysis A, 250, 239.
Li, J., Gao, S., Li, M., Zhang, R.H. and Xi, Z.W. (2004) Influence of composition of heteropolyphosphatotungstate catalyst on epoxidation of propylene. Journal of Molecular Catalysis A, 218, 247.
 Gao, J.B., Chen, Y.Y., Han, B., Feng, Z.C., Li, C., Zhou, N., Gao, S. and Xi, Z.W. (2004) A spectroscopic study on the reaction-controlled phase transfer catalyst in the epoxidation of cyclohexene. Journal of Molecular Catalysis A, 210, 197.
 张恒耘, 吕迎, 李军, 高爽, 奚祖威 (2010) 反应控制相转移催化原位过氧化氢环氧化丙烯反应. 催化学报, 10, 1253-1256.
 Taramasso, M., Perego, G. and Notari, B. (l983) Preparation of porous crystaiiine synthetic materiais comprised of siiicon and titanium oxides. USP: 44l050l.
 Xi, Z.W., Zhou, N., Sun, Y. and Li, K.L. (2001) Reaction-controlled phase-transfer catalysis for propylene epoxidation to propylene oxide. Science, 292, 1139.
Sun, Y., Xi, Z.W. and Cao, G.Y. (2001) Epoxidation of olefins catalyzed by [π-C5H5NC16H33]3[PW4O16] with molecular oxygen and a recyclable reductant 2-ethylanthrahydroquinone. Journal of Molecular Catalysis A, 166, 219.
 曾建强, 董家新, 沈星灿, 闭献树 (2013) Matlab在微分法求反应级数和速率常数中的应用. 广州化工, 5, 24-25.