水溶性铑络合物催化1-十二碳烯氢甲酰化反应器构型的初步探索

Hydroformylation of 1-dodecene was studied in a biphasic system using water-soluble rhodium complex [RhCl(CO)(TPPTS)2] as catalyst in the presence of cetyl trimethyl ammonium bromide as surfactant to enhance the reaction rate. Efforts were devoted to improve the performance of hydroformylation by exploring reactor the reaction configuration which enhanced the mixing, dispersion and interphase mass transfer. Experiments were carried out in a 0.5L autoclave at the total pressure of 1.1MPa and temperature from 363K to 373K. Several surface aeration configurations were tested, and higher hydroformylation rate with higher normal/branched aldehyde ratio produced were achieved. The experience suggest that improved reactor configuration by taking reaction engineering, measures is beneficial to better process economy in alkene hydroformylation.     

反应工程因素对十二碳烯氢甲酰化反应速率和正异比的影响

在研究烯烃氢甲酰化反应过程中 ,水溶性催化剂由于具有安全、易回收以及对环境友好等优点而受到广泛的关注[1] .水溶性铑膦络合物催化剂已成功用于丙烯氢甲酰化的工业生产 ,但 1-十二碳烯等长链烯烃的强烈憎水性使得氢甲酰化反应速率极低 .加入阳离子表面活性剂[2 ] ,在反应体系中形成胶束 ,可以提高 1-十二碳烯氢甲酰化反应速率 .水溶性铑膦络合物催化十二碳烯氢甲酰化反应是一个典型的气液液三相反应 ,影响宏观反应动力学和产物正异比的因素很多 .以前的实验已系统地研究了温度、压力、氢气与一氧化碳摩尔比、催化剂浓度、油水比、膦铑比…