Preparation of zeolite l

C - Chemistry – Metallurgy – 01 – B

Patent

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C01B 39/32 (2006.01)

Patent

CA 2333210

A method is disclosed for preparing crystalline aluminosilicate zeolite L from a reaction mixture containing only sufficient water to produce zeolite L. In one embodiment, the reaction mixture is self-supporting and may be shaped if desired. In the method, the reaction mixture is heated at crystallization conditions and in the absence of an added external liquid phase, so that excess liquid need not be removed from the crystallized product prior to drying the crystals.

L'invention concerne un procédé de préparation de zéolite L d'aluminosilicate cristallin, à partir d'un mélange réactionnel contenant seulement la quantité d'eau suffisante pour la production de zéolite L. Dans un mode de réalisation, le mélange réactionnel est auto-suffisant et peut être façonné si on le désire. Dans le procédé de l'invention, le mélange réactionnel est chauffé dans des conditions de cristallisation et en l'absence d'une phase liquide externe ajoutée, de manière qu'il ne soit pas nécessaire de supprimer le liquide excédentaire du produit cristallisé avant le séchage des cristaux.

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