Shaped body of zeolite, a process for its production and its...

B - Operations – Transporting – 01 – J

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B01J 20/18 (2006.01) B01D 53/02 (2006.01) B01D 53/28 (2006.01) B01J 20/28 (2006.01) C02F 1/42 (2006.01) F25B 43/00 (2006.01)

Patent

CA 2326179

The present invention relates to a shaped body obtained from a reaction mixture comprising zeolite, plasticizing agent and binder, it being possible for the shaped body to be produced inexpensively in that the binder comprises a compound of formula (I), in which R in each case independently is unsubstituted or substituted alkyl, aryl, alkenyl, alkinyl, alkoxy or phenoxy, R' in each case independently is unsubstituted or substituted alkyl, aryl, alkenyl or alkinyl and n is a number from 1 to 10, the zeolite comprises zeolite 3A, zeolite 4A, zeolite 5A or zeolite X or any desired mixture of the above mentioned types of zeolite, and the plasticizing agent comprises methylcellulose and is present in the reaction mixture in a content of about 5 to about 40 wt.%, based on the total reaction mixture. The invention furthermore relates to a process for the production of such a shaped body and its use.

La présente invention concerne un corps façonné obtenu à partir d'un mélange de réaction comprenant une zéolithe, un plastifiant et un liant, ce corps pouvant être produit à bon marché et étant caractérisé en ce que le liant comporte un composé correspondant à la formule (I) dans laquelle R représente dans chaque cas et de manière indépendante, alkyle, aryle, alcényle, alcinyle, alcoxy ou phénoxy, substitués ou non, R' représente dans chaque cas et de manière indépendante alkyle, aryle, alcényle ou alcinyle, substitués ou non, et n représente un nombre compris entre 1 et 10. La zéolithe comprend une zéolithe 3A, une zéolithe 4A, une zéolithe 5A ou une zéolithe X ou tout mélange souhaité de ces types de zéolithe, et le plastifiant comprend une méthylcellulose et est présent dans le mélange de réaction selon une teneur d'environ 5 à environ 40 % en poids, calculée sur le poids total du mélange de réaction. Cette invention concerne en outre un procédé de production d'un tel corps façonné, ainsi que l'utilisation de ce corps.

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