Conversion of 1-hexanol to di-n-hexyl ether on acidic catalysts
Conversion of 1-hexanol to di-n-hexyl ether on acidic catalysts
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DOI：
10.1016/j.apcata.2009.11.024
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发表时间：
2010-02
影响因子：
5.5
通讯作者：
E. Medina;R. Bringué;J. Tejero;M. Iborra;C. Fité
中科院分区：
文献类型：
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作者：
E. Medina;R. Bringué;J. Tejero;M. Iborra;C. Fité
在间歇式反应器中，在三种酸性催化剂（热稳定树脂Amberlyst 70、全氟链烷磺酸NafionNR 50和沸石H-NHE-25）上，在150-190°C下测定1-己醇液相脱水为二正己基醚（DNHE）的转化率、选择性和产率。在190°C下，在Amberlyst 70上实现了最高的转化率和产率，但最具选择性的催化剂是Nafion NR 50。在190°C下在沸石上获得了良好的结果。三种催化剂的表观活化能在108- 140 kJ/mol之间。与H-NH-25不同，在Amberlyst 70和NR 50上合成DNHE的反应比类似的1-戊醇脱水成二正戊基醚（DNPE）的反应活性高一点，但选择性低。
Conversion, selectivity and yield of 1-hexanol liquid phase dehydration to di-n-hexyl ether (DNHE) were determined at 150–190°C on three acidic catalysts, the thermally stable resin Amberlyst 70, the perfluoroalkanesulfonic Nafion NR50 and the zeolite H-BEA-25, in a batch reactor. The highest conversion and yield were achieved on Amberlyst 70 at 190°C, but the most selective catalyst was Nafion NR50. Good results were obtained at 190°C on the zeolite. Apparent activation energies for the three catalysts were in the range 108–140kJ/mol. Unlike H-BEA-25, the reaction of DNHE synthesis on Amberlyst 70 and NR50 was a bit more active but less selective than the analogous 1-pentanol dehydration to di-n-pentyl ether (DNPE).