Diverse ZSM-5 zeolites having a dual porosity and different acidic properties have been prepared using natural Perlite as source of SiO₂ and Al₂O₃. Two traditional methodologies were selected to generate hierarchical porosity in the parent ZSM-5: (1) soft templating approach to produce an ordered micro-mesoporous material (H-ZSM-5/MCM-41) and (2) different duration of alkaline treatment for the generation of intra-crystalline mesoporosity (H-ZSM-5-MS-x, x = 30, 60 and 90). Surface acidity and accessibility indexes were determined by adsorption of pyridine and 2,6-lutidine. The catalytic activity was evaluated in the reaction of vinyl acetate and isoamyl alcohol which produces isoamyl acetate and acetaldehyde diisoamyl acetal by transesterification and ketalization reactions, respectively. Isoamyl acetate has been selectively produced as a consequence of an adequate combination of Brønsted acidity and accessibility, thus H-ZSM-5/MCM-41 and H-ZSM-5-MS-60 presented enhanced catalytic activity and selectivity compared to the parent H-ZSM-5.

使用天然珍珠岩作为SiO ₂和Al ₂ O _3的源，制备了具有双重孔隙率和不同酸性的ZSM-5沸石。。选择了两种传统方法在母体ZSM-5中生成分层孔隙度：（1）软模板方法以生产有序的微介孔材料（H-ZSM-5 / MCM-41），以及（2）不同的碱处理时间用于产生晶内介孔（H-ZSM-5-MS-x，x = 30、60和90）。通过吸附吡啶和2,6-二甲基吡啶测定表面酸度和可及性指数。在乙酸乙烯酯和异戊醇的反应中评估催化活性，所述异戊醇通过酯交换反应和缩酮化反应分别产生乙酸异戊酯和乙醛二异戊基乙缩醛。由于布朗斯台德酸度和可及性的充分结合，乙酸异戊酯被选择性生产。