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催化精馏制备乳酸乙酯

Synthesis of ethyl lactate by catalytic distillation

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【作者】 高静周丽亚赵学明黄志红刘春江

【Author】 GAO Jing~ 1 , ZHOU Liya~1,ZHAO Xueming~2,HUANG Zhihong~1, LIU Chunjiang~2 (~1School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130,China; ~2School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072,China)

【机构】 河北工业大学化工学院天津大学化工学院天津大学化工学院 天津300130天津300130天津300072

【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.

【基金】 国家自然科学基金重大项目(20036010);河北省教育厅自然科学研究计划项目(2002150).~~
  • 【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
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