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    • 32. 发明授权
    • Method for producing long chain polyether polyols without reprocessing
    • 不再加工生产长链聚醚多元醇的方法
    • US06482993B1
    • 2002-11-19
    • US09673583
    • 2000-10-18
    • Jörg HofmannPramod Gupta
    • Jörg HofmannPramod Gupta
    • C07C4311
    • B01J31/0227B01J2231/48C08G65/2642C08G65/266
    • This invention relates to a process for the production of long-chain polyether polyols without working up, in which oligomeric, alkoxylated starter compounds having molecular weights of 200 to 1000 are first obtained by catalysis with perfluoroalkylsulfonates of the metals of group III A of the periodic system of elements (in accordance with the IUPAC convention of 1970) from low molecular weight starters by reaction with alkylene oxides at reaction temperatures of 80 to 200° C. and catalyst concentrations of 5 to 200 ppm, which oligomeric, alkoxylated starter compounds are then converted without working up and removal of the catalyst by means of highly active DMC catalysts at a catalyst concentration of 30 ppm or below, relative to the quantity of polyether polyol to be produced, by reaction with alkylene oxides into higher molecular weight, long-chain polyether polyols.
    • 本发明涉及一种不加工的长链聚醚多元醇的制备方法,其中分子量为200〜1000的低聚烷氧基化起始化合物首先通过周期性的IIIA族金属的全氟烷基磺酸盐的催化而得到 在低分子量起始化合物的反应温度为80〜200℃,催化剂浓度为5〜200ppm的条件下,通过与环氧烷烃反应,从低分子量起始剂中分离出元素系统(按照IUPAC惯例) 通过高活性DMC催化剂处理和除去催化剂,催化剂浓度为30ppm或更低,相对于待生产的聚醚多元醇的量,通过与烯化氧反应成较高分子量的长链 聚醚多元醇。
    • 33. 发明授权
    • Method for preparing polyether polyols
    • 制备聚醚多元醇的方法
    • US06350920B1
    • 2002-02-26
    • US09485507
    • 2000-03-20
    • Hans-Josef BuyschManfred DietrichPramod GuptaPieter Ooms
    • Hans-Josef BuyschManfred DietrichPramod GuptaPieter Ooms
    • C07C4311
    • B01J31/0202B01J31/068C08G65/2648C08G65/2651C08G65/30
    • Polyether polyols can be prepared by reacting polyols with epoxides in the presence of basic catalysts, by treating the polyether polyols containing the basic catalysts with OH-functional solid compounds of metals of groups III to VIII of the periodic system of the elements (Mendeleyev), the compounds being insoluble in the polyether polyols and having BET surface areas of from 10 to 1000 m2/g, isolating the solid inorganic compounds laden with the basic catalysts from the polyether polyol and using them in the reaction of polyols with epoxides, or bringing the isolated inorganic compounds laden with the basic catalysts into contact with the polyols that are to be used in the reaction with epoxides, separating those polyols from the inorganic compounds and delivering them to the reaction with epoxides.
    • 聚醚多元醇可以通过在碱性催化剂的存在下使多元醇与环氧化物反应来制备,通过用含有元素(Mendeleyev)的周期体系的III-VIII族金属的OH-官能固体化合物处理含有碱性催化剂的聚醚多元醇, 所述化合物不溶于所述聚醚多元醇并具有10至1000m 2 / g的BET表面积,从所述聚醚多元醇中分离含有碱性催化剂的固体无机化合物,并将其用于多元醇与环氧化物的反应,或将 分离的无机化合物与碱性催化剂接触,与用于与环氧化物的反应中使用的多元醇接触,将这些多元醇与无机化合物分离并将其输送到与环氧化物反应。