Isomerization of Pinene with Al- and Ga-Modified MCM-41 Mesoporous Materials

Abstract:

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In recent years the pharmaceutical and cosmetics industries have increased the usage of camphene, an intermediate for the manufacture of, for instance, camphor, anti-swelling drugs and K vitamin. Therefore, recent research efforts have been focused on developing new reaction paths towards a higher selectivity to camphene while avoiding other terpene by-products, such as p-cumene and limonene, which are of little industrial value. The aim of the present work was to study the structure and catalytic performance of Al- and Ga- substituted MCM-41 mesoporous materials for the α-pinene isomerization reaction. Both, Al and Ga, enhance the Brönsted and Lewis acidity of the parental MCM-41 material. At low conversion (± 10%) there was little deactivation, mainly due to the absence of secondary reactions; at higher conversion (± 50%) considerable amount of cyclic products are obtained.

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Periodical:

Edited by:

Jin-An Wang, Guozhong Cao and José Manuel Domínguez

Pages:

162-173

DOI:

10.4028/www.scientific.net/AMR.132.162

Citation:

M. Díaz-García et al., "Isomerization of Pinene with Al- and Ga-Modified MCM-41 Mesoporous Materials", Advanced Materials Research, Vol. 132, pp. 162-173, 2010

Online since:

August 2010

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$35.00

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