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

Abstract:

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.

• Periodical: Advanced Materials Research (Volume 132)
• Pages: 162-173
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.132.162
• Online since: August 2010
• Authors: M. Díaz-García, J. Aguilar-Pliego, G. Herrera-Pérez, L. Guzmán, P. Schachat, Luis E. Noreña-Franco, A. Aguilar-Elguezabal, M. Gutierrez-Arzaluz
• Keywords: Al-MCM-41, Ga-MCM-41, Mesoporous MCM-41, α-Camphene, α-Pinene

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