Title:
SOLID DOUBLE METAL CYANIDE CATALYST AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JP3479175
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a solid double metal cyanide catalyst capable of improving the activity of an epoxide polymer by reacting an aq. metal salt soln. with an aq. metal cyanide salt soln. and mixing the resultant catalyst slurry with a specific polyether.
SOLUTION: An aq. soln. contg. an excess metal salt is reacted with an aq. soln. of a metal cyanide salt in the presence of an org. complexing agent to give a catalyst slurry. The slurry is mixed with 5-80 wt.% polyether having a number average mol.wt. of 500 or higher and an average hydroxyl functionality of 2-8, and the resultant polyether-contg. solid catalyst is separated from the slurry. Then, the solid catalyst is washed with an aq. soln. contg. an org. complexing agent to give a solid double metal cyanide catalyst contg. a divalent cyanide compd., an org. complexing agent, and a polyether.
Inventors:
Billy-Kirk
Application Number:
JP25012195A
Publication Date:
December 15, 2003
Filing Date:
September 05, 1995
Export Citation:
Assignee:
Bayer Antwerp Nb
International Classes:
B01J27/26; B01J31/02; B01J31/06; C08K3/28; B01J31/16; B01J31/22; C08F4/26; C08G59/68; C08G59/70; C08G65/10; C08G65/26; C08G65/28; C08G65/30; C08K5/05; C08L71/00; C08L71/02; (IPC1-7): C08G59/70; C08G65/10; C08G65/28
Domestic Patent References:
| JP4145123A | ||||
| JP58185433A | ||||
| JP3149222A | ||||
| JP3281529A | ||||
| JP641292A | ||||
| JP7196778A |
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)
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