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采用三苯基膦羰基氢化铑作为催化剂,进行1-丁烯氢甲酰化合成戊醛反应,主要考察温度、铑浓度、配体浓度、丁烯浓度、合成气中H2和CO分压等因素对反应速率的影响.动力学研究表明温度、Rh浓度、丁烯浓度和H2分压的增加均可提高反应速度,CO分压和配体量的增加使反应速度降低.给出了RhH(CO)(PPh3)3催化1-丁烯氢甲酰化的反应动力学方程,并采用非线性最小二乘法对模型进行参数估值,计算值与实验值具有较好的一致性.
Hydrogenation of 1-butene to pentanal was carried out using triphenylphosphinocarbonyl rhodium hydride as catalyst. The main factors such as temperature, rhodium concentration, ligand concentration, butene concentration, partial pressure of H2 and CO in syngas On the reaction rate.Kinetic studies show that the reaction rate can be increased by the increase of temperature, Rh concentration, butene concentration and partial pressure of H2, and the reaction rate decreases with the increase of partial pressure of CO and ligand.The reaction of RhH (CO ) (PPh3) 3 catalyzes the reaction kinetics of 1-butylene hydroformylation. The nonlinear least squares method is used to estimate the parameters of the model. The calculated values are in good agreement with the experimental values.