Title:
不溶性金属塩を用いる金属シアニド触媒の製造方法
Document Type and Number:
Japanese Patent JP2005520890
Kind Code:
A
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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Inventors:
Waymeyer, Richard M.
Application Number:
JP2003578057A
Publication Date:
July 14, 2005
Filing Date:
March 17, 2003
Export Citation:
Assignee:
Dow Global Technologies Incorporated
International Classes:
B01J27/26; C08G65/10; C07C41/03; C08G65/26; (IPC1-7): C08G65/10
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Masaya Nishiyama
Takashi Ishida
Tetsuji Koga
Masaya Nishiyama