节点文献
催化精馏制备乳酸乙酯
Synthesis of ethyl lactate by catalytic distillation
【Abstract】 A catalytic distillation process for the synthesis of ethyl lactate was proposed,starting from lactic acid and ethanol over ion-exchange resin catalyst.Experimental research work was carried out to investigate the effects of reflux ratio,ratio of ethanol to lactic acid, lactic acid feeding flux and feed location on ethyl lactate yield.In this experiment, the appropriate conditions were as follows:reflux ratio 1∶1,molar ratio of ethanol to lactic acid 4∶1, lactic acid feeding flux 0.6284 mol·h~ -1 ,feed location point A feed lactic acid and point H feed ethanol,and the yield of ethyl lactate reached 31.64%.The catalytic distillation tower was simulated with ASPEN PLUS.The experiment results agreed well with simulation.The results show that the proposed method is promising for further study.
【Key words】 ethyl lactate; catalytic distillation; esterification; ion-exchange resin;
- 【文献出处】 化工学报 ,Journal of Chemical Industry and Engineering(China) , 编辑部邮箱 ,2006年11期
- 【分类号】TQ225.24
- 【被引频次】22
- 【下载频次】418