介绍了在燕化公司化工三厂间甲酚装置改造项目中第一异丙基甲苯汽提塔（201E）的改造设计方案及导向筛板的优点和设计方法。
The paper introduces the revamping design scheme of the primary cymene stripper (201E) in them-cresol plant revamping project and puts forward the detailed design method of Linde sieve tray.
同时本文对烷基化产物进行了分离提纯，得到了纯的2-异丙基-6-甲基萘，并通过GC，GC-MS和NMR分析，确定了结构。
The separation and purification of the alkylation products have been studied. Pure 2-IP-6-MN is obtained and its structure is proved by GC, GC-MS and NMR.
对2,6 -二异丙基苯酚气相胺化反应的液相产品进行了气相色谱-质谱分析，确定了产物组成。
The liquid product from gas-phase amination of 2, 6-diisopropyl phenol was analyzed by gas chromatography-mass spectrometry, and the composition of the product was determined.
对2,6 -二异丙基苯酚气相胺化反应的液相产品进行了气相色谱-质谱分析，确定了产物组成。
The liquid product from gas-phase amination of 2, 6-diisopropyl phenol was analyzed by gas chromatography-mass spectrometry, and the composition of the product was determined.
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