Process for preparing 2-methylnaphthalene

Details Process for preparing 2-methylnaphthalene Process for preparing 2-methylnaphthalene

C - Chemistry, Metallurgy

07

C

C07C 15/24 (2006.01) C07C 5/27 (2006.01)

Patent

CA 2220153

A Process is provided for preparing 2-methylnaphthalene, in which an employed catalyst exhibits high selectivity of 2-MN and low conversion rate to undesirable byproduct as well as long catalytic activity. The process produces 2-MN from a feedstock containing 1-MN by contacting said feedstock with a catalyst composition, said process comprising isomerization of 1-MN, wherein said catalyst composition comprises a synthetic zeolite characterized by an X-ray diffraction pattern including interplanar d-spacing as set forth in Table A of the specification.

Un procédé est offert pour préparer du 2-méthylnaphtalène, dans lequel le catalyseur utilisé présente une sélectivité élevée à l'égard du 2-MN, un faible taux de conversion en sous-produits indésirables ainsi qu'une activité catalytique de longue durée. Le procédé produit du 2-MN à partir d'une matière première contenant du 1-MN par contact entre ladite matière première et une composition de catalyseur, ledit procédé comprenant l'isomérisation du 1-MN, ladite composition de catalyseur comprenant une zéolite synthétique caractérisée par un spectre de diffraction des rayons X comprenant un espacement interplans d précisé dans le Tableau A de la description.

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