以环境友好性催化剂磺化聚(苯乙烯co 甲基丙烯酸丁酯)[磺化P(St co BMA)]代替传统的浓硫酸催化正丙醇与冰乙酸的酯化反应。实验结果表明,磺化P(St co BMA)对乙酸正丙酯的合成反应具有较好的催化作用。乙酸正丙酯的产率与聚合物催化剂的...以环境友好性催化剂磺化聚(苯乙烯co 甲基丙烯酸丁酯)[磺化P(St co BMA)]代替传统的浓硫酸催化正丙醇与冰乙酸的酯化反应。实验结果表明,磺化P(St co BMA)对乙酸正丙酯的合成反应具有较好的催化作用。乙酸正丙酯的产率与聚合物催化剂的用量有关,当催化剂与正丙醇的质量比为1∶6、酯化反应时间为1 h时,乙酸正丙酯的产率可以达到83 6%以上,且共聚物催化剂经5次使用后仍可使乙酸正丙酯产率达到80 68%。多次使用的催化剂经再生后,其催化活性与新制备的共聚物催化剂相比几乎没有差别。展开更多
The macro-kinetics of diphenyl carbonate synthesis was studied over Pd-Cu/La0.5Pb0.5MnO3 catalyst in a trickle-bed reactor.The catalyst particle size was φ2.0 mm×3 mm.A power type macro-kinetic model was employe...The macro-kinetics of diphenyl carbonate synthesis was studied over Pd-Cu/La0.5Pb0.5MnO3 catalyst in a trickle-bed reactor.The catalyst particle size was φ2.0 mm×3 mm.A power type macro-kinetic model was employed in the present study.The model parameters-were regressed-in the kinetics.The statistic test and its residual error distribution have been made,respectively.The results show that the values calculated by power type macro-kinetic models can be good agreement with experimental data.Furthermore,the model can provide the theory basis on simulation and design of the large scale synthesis of diphenyl carbonate in trickle-bed reactor.展开更多
文摘以环境友好性催化剂磺化聚(苯乙烯co 甲基丙烯酸丁酯)[磺化P(St co BMA)]代替传统的浓硫酸催化正丙醇与冰乙酸的酯化反应。实验结果表明,磺化P(St co BMA)对乙酸正丙酯的合成反应具有较好的催化作用。乙酸正丙酯的产率与聚合物催化剂的用量有关,当催化剂与正丙醇的质量比为1∶6、酯化反应时间为1 h时,乙酸正丙酯的产率可以达到83 6%以上,且共聚物催化剂经5次使用后仍可使乙酸正丙酯产率达到80 68%。多次使用的催化剂经再生后,其催化活性与新制备的共聚物催化剂相比几乎没有差别。
文摘The macro-kinetics of diphenyl carbonate synthesis was studied over Pd-Cu/La0.5Pb0.5MnO3 catalyst in a trickle-bed reactor.The catalyst particle size was φ2.0 mm×3 mm.A power type macro-kinetic model was employed in the present study.The model parameters-were regressed-in the kinetics.The statistic test and its residual error distribution have been made,respectively.The results show that the values calculated by power type macro-kinetic models can be good agreement with experimental data.Furthermore,the model can provide the theory basis on simulation and design of the large scale synthesis of diphenyl carbonate in trickle-bed reactor.
