化工进展

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热敏性物料环氧环己烷的精馏

谢艳新,曹运兵,徐燕萍,蒋登高   

  1. 郑州大学化工与能源学院,河南 郑州 450001
  • 出版日期:2011-07-05 发布日期:2011-07-05

Research on distillation of heat-sensitive epoxycyclohexane

XIE Yanxin,CAO Yunbing,XU Yanping,JIANG Denggao   

  1. School of Chemical Engineering and Energy,Zhengzhou University,Zhengzhou 450001,Henan,China
  • Online:2011-07-05 Published:2011-07-05

摘要:

针对无溶剂法双氧水氧化环己烯合成环氧环己烷的油相反应液,采用常压精馏的方法对其进行了分离纯化,并得到了常压精馏操作的较佳工艺条件。在此工艺条件下,环氧环己烷的纯度和单程收率分别达到99.59%85.87%,对常压精馏后的塔釜高沸点残留物进行减压精馏回收后,环氧环己烷总收率可以达90%以上,为其工业化生产提供重要的实验依据。

Abstract:

From the oil phase reaction liquor of H2O2 oxidation of cyclohexeneepoxycyclohexane was separated and purified by atmospheric distillationand the optimum conditions were determined. Under the optimum conditions the purity of epoxycyclohexane obtained was 99.59% and the single pass yield of product was 85.87 %. Epoxycyclohexane in the high boiling point bottom residue was recovered by vacuum distillationand the total yield of epoxycyclohexane could be over 90%.

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