Hydration of α-pinene over zeolites and activated carbons dispersed in polymeric membranes

被引：50

作者：

Vital, J ^{[1
]}

Ramos, AM ^{[1
]}

Silva, IF ^{[1
]}

Valente, H ^{[1
]}

Castanheiro, JE ^{[1
]}

机构：

[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, CQFB, P-2825 Monte De Caparica, Portugal

来源：

CATALYSIS TODAY | 2000年 / 56卷 / 1-3期

关键词：

PDMS membranes; zeolite USY; zeolite beta; activated carbon; alpha-pinene hydration;

D O I：

10.1016/S0920-5861(99)00273-4

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The acid catalysed hydration of alpha-pinene yields a complex mixture of monoterpenes, alcohols and hydrocarbons. By controlling the reaction variables is possible to make it selective to the terpenic alcohols, namely alpha-terpineol. In this paper the results of the hydration reaction of alpha-pinene catalysed by polydimethylsiloxane (PDMS) membranes filled with zeolite USY, zeolite beta or a surface modified activated carbon, are reported. The reaction is carried out at 50 degrees C, using aqueous acetone as solvent. The activity and selectivity towards alpha-terpineol of the composite membranes are compared with those of the free catalysts. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：167 / 172

页数：6

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