物料配比对高压釜中萘的异丙基化反应的影响

Effects of the Ratio between Different Substances on Isopropylation of Naphthalene in Batch Reactors

阐述了萘的异丙基化反应的意义及研究概况，着重分析了物料配比对高压釜中萘的异丙基化反应的影响，得到在０．１Ｌ高压釜中的最佳物料配比为：０．０３７５ｍｏｌ萘／０．１ｍｏｌ异丙醇／１０ｍＬ十氢化萘／１．５ｇ丝光沸石。实验结果表明，采用高度脱铝丝光沸石为原料，按实验确定的物料配比在高压釜中进行反应，反应温度为２５０℃，反应时间为３．５ｈ，得到萘的转化率为４４．８％，产物的β，βＤＩＰＮ的选择性为９５．４％，２，６ＤＩＰＮ的选择性为７３．０％，２，６ＤＩＰＮ／２，７ＤＩＰＮ的值达到３．２５。

In this paper, the meaning and research situation of isopropylation of napht halene are discussed and the effects of the ratio between different substances o n isopropylation of naphthalene in a 0.1L batch reactor are studied.The b est ratio is obtained as: 0.0375mol naphthalene/0.1mol isopropanol/10ml decal in/1.5g hydrogen mordenite(HM).At this ratio ,the reaction was performed over highly dealuminated HM in a 0.1L batch reactor at 250℃ for 3.5 hours to give 4 4.8% conversion.In the isopropylation product obtained , the β,β DIPN selectivity is 95.4% the 2,6 diisopropylnaphthalene (2,6 DIPN) selecti vity is 73.0% and the 2,6 DIPN /2,7 DIPN ratio is 3.25.