| 摘要 |
An improved method for synthesizing a double metal cyanide (DMC) catalyst combines and sonicates aqueous and non-aqueous solutions of a first metal salt, such as Zn(OAc)<SUB>2</SUB>, of a second metal salt, such as CoCl<SUB>2</SUB>, and of an alkali metal cyanide, such as NaCN, to synthesize the DMC catalyst, Zn<SUB>3</SUB>[Co(CN)<SUB>6</SUB>]<SUB>2</SUB>. An improved method of producing a polyether polyol uses the DMC catalyst to produce the polyol.
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