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Далин等在76～120℃范围内研究了丙烯与乙苯氢化过氧化物环氧化反应的钼催化动力学,提出了该反应的机理模式,并认为催化剂的有效浓度在反应过程中是不变的。本文在Далин等研究的基础上对该反应进行了实验研究,对所得数据以及文献[3]所给出的数据的分析表明,催化剂的有效浓度在反应过程中并不是不变的,而是呈一级反应规律下降。为此,作者对文献[3]的机理模式提出了修正,并指出上述催化剂失活的机理与ΦapбepoB所提出的阻抑机理不同。
Далин et al. Studied the catalytic kinetics of molybdenum for epoxidation of propylene and ethylbenzene hydroperoxide in the temperature range of 76 ~ 120 ℃. The mechanism model of the reaction was proposed and the effective concentration of catalyst was not changed during the reaction of. In this paper, based on the research of Далин et al., The reaction was experimentally studied. The analysis of the obtained data and the data given in [3] showed that the effective concentration of the catalyst was not constant during the reaction, First-order reaction decreased. To this end, the author proposed a modification of the mechanism model of [3], and pointed out that the mechanism of inactivation of the above catalyst is different from the suppression mechanism proposed by ΦapбepoB.