Sol gel functionalized silicate catalyst and scavenger

Details Sol gel functionalized silicate catalyst and scavenger Sol gel functionalized silicate catalyst and scavenger

B - Operations, Transporting

01

J

B01J 29/00 (2006.01) B01D 15/08 (2006.01) B01J 37/00 (2006.01) C01B 33/20 (2006.01)

Patent

CA 2598617

This invention relates to materials suitable as metal scavengers and catalysts. The materials are prepared by functionalizing silicate materials such as silica or SBA-15 with a thiol or amine, or other functionalizing agent, in a sol gel process. In a preferred embodiment, the metal is palladium and the functionalizing agent is a thiol. The material may be used as a catalyst for the Suzuki-Miyaura and Mizoroki-Heck coupling reactions. The catalyst materials have extremely low metal leaching, are very stable, and are completely recyclable.

L~invention concerne des matériaux convenant comme épurateurs et catalystes. ou tout autre agent de fonctionnalisation dans un procédé sol-gel. Dans le mode de réalisation préféré, le métal est le palladium et l~agent de fonctionnalisation, le thiol. Le matériau peut être utilisé comme catalyste pour les réactions de couplage Suzuki-Miyaura et Mizoroki-Heck. Les matériaux catalystes présentent très peu de dissolution de métal, sont très stables, et sont complètement recyclables.

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