【摘要】 ＢＦ_３／离子交换树脂固体酸催化剂的研究温陵生，马淑杰，张强，吕慧娟，徐征（吉林大学化学系，长春１３００２３）关键词三氟化硼，聚苯乙烯磺酸树脂，全氟磷酸树脂，超强酸催化剂用于催化剂的离子交换树脂有大孔聚苯乙烯磺酸树脂ＰＳＳＡ和全氟磺酸树脂ＰＦＩＥＰ(?..更多还原

【Abstract】 wo resin type solid superacid catalysts, BF3/PFIEP(perfluorinated ion-exchange polymer resin) and BF3/PSSA (polystyrene sulfonicacid resin) for the alkylation of isobutane with butene at 20℃ were studied. The acidity of the catalysts is measured by the thermal measuring curve after NH3 adsorption. The alkylation activity of catalysts andthe product components (C8 hydrocarbons and 2, 2,4--trimethylpentane) vary with the reaction time. It is found that the acidity and activity of the catalysts are related to the BF3/--SO3H ratio in the catalysts. The acidity and activity of BF3/PSSA are hygher than BF3/PFIEP, but BF3of the former runs off easily. Catalyst BF3/PFIEP shows high stability for the alkylation of isobutane, its lifetime can be prolonged for about144 h because the loss of BF3 is very little during the reaction.更多还原