Method for preparing metal cyanide catalysts using...

Details Method for preparing metal cyanide catalysts using... Method for preparing metal cyanide catalysts using...

C - Chemistry, Metallurgy

08

G

C08G 65/00 (2006.01) B01J 27/26 (2006.01) B01J 31/06 (2006.01) B01J 31/22 (2006.01) C08G 65/04 (2006.01) C08G 65/26 (2006.01)

Patent

CA 2504921

Metal cyanide catalysts complexed with a monomer complexing agent which contains at least one polymerizable site of carbon-carbon unsaturation are disclosed. A method of preparing such metal cyanide catalysts is disclosed comprising a) treating a metal cyanide catalyst with a monomer complexing agent that contains at least one site of polymerizable carbon- carbon unsaturation, and b) subjecting said treated catalyst to conditions sufficient to polymerize the monomer complexing agent to form an organic polymer having the metal cyanide catalyst dispersed therein. The catalysts are useful alkylene oxide polymerization catalysts that are easily separated from the polymerization product and recycled.

Selon l'invention, des complexes d'un catalyseur de polymérisation de cyanure métallique et certains agents complexants monomères sont utilisés dans un procédé permettant de préparer des catalyseurs de cyanure métallique actifs hétérogènes. Ces catalyseurs sont des catalyseurs de polymérisation d'oxyde d'alkylène facilement séparés du produit de polymérisation et recyclés.

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