METHOD FOR PREPARING METAL CYANIDE CATALYSTS USING INSOLUBLE METAL SALTS

Title:

METHOD FOR PREPARING METAL CYANIDE CATALYSTS USING INSOLUBLE METAL SALTS

Document Type and Number:

WIPO Patent Application WO2003080239

Kind Code:

A3

Abstract:

Metal cyanide catalyst dispersions in initiator compounds and/or polyethers are prepared by reacting an acidic metal cyanide compound with an insoluble metal salt in a medium that is a solvent for the acidic metal cyanide compound but not the metal salt. The resulting catalyst slurry may be combined with an initiator and stripping to form a catalyst/initiator or catalyst/polyether slurry. Using this method, an active alkylene oxide polymerization catalyst is prepared, and the preparation method is greatly simplified. Further, it is not necessary to use a separate organic complexing agent in the preparation.

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WO/2005/080269	ACTIVATED CARBON WITH IMPROVED MECHANICAL RESISTANCE, AND THE USES THEREOF, ESPECIALLY AS A CATALYST CARRIER
JP2003504499	Description: Polymerization of alkylene oxides on functionalization initiators
WO/2003/025045	PROCESS FOR PREPARING POLYOXYALKYLENE POLYETHER PRODUCTS

Inventors:

WEHMEYER RICHARD M (US)

Application Number:

PCT/US2003/008001

Publication Date:

December 04, 2003

Filing Date:

March 17, 2003

Export Citation:

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Assignee:

DOW GLOBAL TECHNOLOGIES INC (US)
WEHMEYER RICHARD M (US)

International Classes:

B01J27/26; C07C41/03; C08G65/10; C08G65/26; (IPC1-7): B01J27/26; C08G65/26

Domestic Patent References:

WO2001004183A1

2001-01-18

Foreign References:

US6348565B1	2002-02-19
US20020198413A1	2002-12-26
EP1288244A1	2003-03-05
US3538043A	1970-11-03

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