Method for producing polyether alcohols

Details Method for producing polyether alcohols Method for producing polyether alcohols

C - Chemistry, Metallurgy

08

G

C08G 65/26 (2006.01) C07D 301/32 (2006.01)

Patent

CA 2387155

The invention relates to a method for producing polyether alcohols by the catalytic reaction of H functional compounds with alkylene oxides, whereby at least one multi-metal cyanide compound is used as the catalyst. The method is characterised in that the total content of alkaline and acidic impurities contained in the starting material and the alkylene oxides, which reduce the activity of the catalyst, is less than 100 ppm.

La présente invention concerne un procédé de production d'alcools de polyéther, par réaction catalytique de composés à fonction H avec des oxydes d'alkylène. Selon ce procédé, au moins un composé à base de cyanure polymétallique est utilisé en tant que catalyseur. Ce procédé se caractérise en ce que la teneur en impuretés basiques et acides contenue dans la substance de départ et dans les oxydes d'alkylène, qui diminue l'activité du catalyseur, est, au total, inférieure à 100 ppm.

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