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    • 9. 发明申请
    • Dmc catalysts, polyether alcohols, and method for the production thereof
    • Dmc催化剂,聚醚醇及其制备方法
    • US20050203274A1
    • 2005-09-15
    • US10514714
    • 2003-06-18
    • Edward BohresDirk FrankeMichael StosserRaimund RuppelEva BaumKathrin Harre
    • Edward BohresDirk FrankeMichael StosserRaimund RuppelEva BaumKathrin Harre
    • C08G65/12B01J27/26B01J37/03C08G18/48C08G65/26C08G65/04
    • B01J27/26B01J37/03C08G18/4866C08G65/2663
    • The invention relates to a process for preparing polyether alcohols by addition of alkylene oxides onto H-functional starter substances using multimetal cyanide compounds as catalysts, wherein the multimetal cyanide compound is prepared by a process comprising the steps: a) adding a metal salt solution to a cyanometalate solution at a specific stirring power ε in the range from 0.05 to 10 W/l, preferably from 0.4 to 4 W/l, a temperature in the range from 0° C. to 100° C., preferably from 20° C. to 60° C., and an addition time of from 5 to 120 minutes, b) reducing the specific stirring power ε to a value in the range from 0.03 to 0.8 W/l and at the same time adding a surface-active agent, c) heating the solution while stirring at a specific stirring power ε of from 0.03 to 0.8 W/l, to a temperature of not more than 100° C., preferably in the range from 55° C. to 75° C., d) adding further metal salt solution while stirring at a specific stirring power ε of from 0.03 to 0.8 W/l, e) when the conductivity begins to drop, dispersing the solid, for example by stirring while increasing the specific stirring power ε to >0.7 W/l or by installation of a pumped circuit with an appropriate pump or by means of a high-speed stirrer, f) stirring at the specific stirring power ε of step e) until the conductivity or the pH remains constant, g) separating off the multimetal cyanide compound and washing it with water and, if desired, h) drying the catalyst.
    • 本发明涉及通过使用多金属氰化物作为催化剂将烯化氧加成到H官能起始物质上制备聚醚醇的方法,其中所述多金属氰化合物通过包括以下步骤的方法制备:a)将金属盐溶液加入到 在特定搅拌功率ε为0.05至10W / l,优选0.4至4W / l的范围内的氰酸金属盐溶液,温度范围为0℃至100℃,优选为20℃ 至60℃,加入时间为5至120分钟,b)将比重搅拌功率ε3降低至0.03-0.8W / l的范围内,同时加入表面活性剂 ,c)在0.03-0.8W / l的特定搅拌功率ε的搅拌下将溶液加热至不超过100℃,优选在55℃至75℃的温度, d)在搅拌下以特定搅拌功率ε加入另外的金属盐溶液 从0.03至0.8W / l,e)当电导率开始下降时,例如通过搅拌分散固体,同时将特定搅拌功率ε提高至> 0.7W / l或通过用合适的泵安装泵浦回路或 通过高速搅拌器,f)在步骤e)的特定搅拌功率ε下搅拌,直到导电率或pH保持恒定,g)分离多金属氰化合物并用水洗涤,如果需要,h )干燥催化剂。