| 2,6-二异丙基萘与2,7-二异丙基萘的吸附分离 |
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| 引用本文： | 何广湘,靳海波,杨索和,李文艳,杨春育. 2,6-二异丙基萘与2,7-二异丙基萘的吸附分离[J]. 化学工程, 2010, 38(10) |
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| 作者姓名： | 何广湘 靳海波 杨索和 李文艳 杨春育 |
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| 作者单位： | 北京石油化工学院,化工系,北京,102617;北京石油化工学院,化工系,北京,102617;北京石油化工学院,化工系,北京,102617;北京石油化工学院,化工系,北京,102617;北京石油化工学院,化工系,北京,102617 |
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| 基金项目： | 中国石油化工集团总公司资助课题,北京市属高等学校人才强教深度计划资助项目 |
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| 摘 要： | 萘异丙基化反应的目标产物2,6-二异丙基萘(2,6-DIPN)与主要副产物2,7-二异丙基萘(2,7-DIPN)的性质相近,经过精馏和结晶后不能完全分离。选用阳离子改性后的Y沸石分子筛作吸附剂,甲苯作脱附剂,将2,6-DIPN与2,7-DIPN进行吸附分离。实验表明:NaY和PdY分子筛对2,6-DIPN的吸附性能较强,LiY和KY对2,7-DIPN吸附性能较强;NaY吸附剂的再生性能良好。
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| 关 键 词： | 吸附分离 2 6-DIPN 7-DIPN Y分子筛 |
Adsorption separation of 2,6-diisopropylnaphthalin and 2,7-diisopropylnaphthalin |
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| HE Guang-xiang,JIN Hai-bo,YANG Suo-he,LI Wen-yan,YANG Chun-yu. Adsorption separation of 2,6-diisopropylnaphthalin and 2,7-diisopropylnaphthalin[J]. Chemical Engineering, 2010, 38(10) |
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| Authors: | HE Guang-xiang JIN Hai-bo YANG Suo-he LI Wen-yan YANG Chun-yu |
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| Abstract: | For naphthalene isopropylation reactions,the target product 2,6-diisopropylnaphthalin(DIPN) and the main by-product 2,7-diisopropylnaphthalin(DIPN) cannot be entirely separated by distillation and crystallization due to their similar properties.The adsorption separation of 2,6-DIPN and 2,7-DIPN was adopted by using cationic modified Y zeolite as adsorbent and toluene as desorbent.The results show that the adsorption of 2,6-DIPN with NaY and PdY is stronger than that with LiY and KY,and contrarily,LiY and KY have higher adsorption of 2,7 DIPN was obtained,the adsorbent NaY has a better regeneration performance. |
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| Keywords: | adsorption separation 2,6-DIPN 2,7-DIPN Y zeolite |
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