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己内酰胺制备氨基己腈工艺过程中杂质的测定

Determination of Impurities in the Process of Preparing Aminocapronitrile from Caprolactam

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【作者】 李雅楠; 郑洋; 柴勇利; 李明; 于景民; 崔炳春;

【Author】 LI Ya’nan;ZHENG Yang;CHAI Yongli;LI Ming;YU Jingmin;CUI Bingchun;Henan Chemical Industry Research Institute Co.Ltd,Research Center for Chemical Catalysis and New Functional Materials Innovation of Henan Academy of Sciences;

【通讯作者】 崔炳春;

【机构】 河南省化工研究所有限责任公司河南省科学院化学催化与新型功能材料创新研究中心;

【摘要】 采用全二维气相色谱-质谱联用仪(GC×GC-MS)对己内酰胺氨化制备氨基己腈的反应液进行分析,得知己内酰胺制备氨基己腈反应液中含有环己亚胺、5-己烯腈、2-亚甲基-4-戊烯腈、氰基-1-环戊烯等副产物。当调整工艺路线和催化剂配方时,己内酰胺制备氨基己腈的副产物成分会随之变化。多次实验表明,副产物环己亚胺、5-己烯腈是己内酰胺制备氨基己腈反应中的主要副产物,为后续精馏得到纯度为99.9%的氨基己腈提供了依据。

【Abstract】 The reaction solution for the preparation of aminocapronitrile from caprolactam is analyzed by full two-dimensional gas chromatography-mass spectrometry( GC × GC-MS). It is found that the reaction solution for the preparation of aminocapronitrile from caprolactam contained by-products such as cycloheximide,5-hexenenitrile,2-methylene-4-pentenenitrile and cyano-1-cyclopentene. When the process route and catalyst formula adjusting,the composition of the by-product from caprolactam to aminocapronitrile will change. Through many experiments,many experiments show that the by-products cycloheximide and 5-hexenenitrile are the main by-products in the preparation of aminocapronitrile from caprolactam,which provides good data support for the subsequent distillation to obtain aminocapronitrile with purity of 99. 9%.

【基金】 河南省科学院重大科研聚焦专项(190108001);河南省科技攻关计划项目(202102210232)
  • 【文献出处】 河南化工 ,Henan Chemical Industry , 编辑部邮箱 ,2022年11期
  • 【分类号】TQ226.61
  • 【下载频次】11
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