Functionalized monolith catalyst and process for production...

Details Functionalized monolith catalyst and process for production... Functionalized monolith catalyst and process for production...

C - Chemistry, Metallurgy

07

C

C07C 45/89 (2006.01) B01J 21/08 (2006.01)

Patent

CA 2395831

A process to produce ketenes which by reacting a carboxylic acid in a reactor in the presence of a silica functionalized monolith catalyst. The silica functionalized monolith catalyst can be prepared by silanizing the monolith with liquid tetraethoxysilane (TEOS) for at least about 2 hours and then hydrolyzed. In addition, the invention relates to a method to make a monolith catalyst by silanizing a monolith with liquid tetraethoxysilane (TEOS) in an acid solution and draining off the excess TEOS.

L'invention concerne un procédé de production de cétènes qui consiste à faire réagir un acide carboxylique dans un réacteur en présence d'un catalyseur monolithique fonctionnalisé au silice. Ledit catalyseur peut être préparé par le biais d'une réaction aux silanes du monolithe avec un tetraéthoxysilane (TEOS) liquide pendant au moins deux heures, puis il est hydrolysé. En outre, cette invention concerne un procédé de production d'un catalyseur monolithique par le biais d'une réaction aux silanes d'un monolithe avec un tetraéthoxysilane (TEOS) liquide dans une solution acide et par drainage de l'excès de tetraéthoxysilane (TEOS).

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