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    • 4. 发明授权
    • Alkoxylation catalyst and method for producing the same, and method for producing alkylene oxide adduct using the catalyst
    • 烷氧基化催化剂及其制造方法,以及使用该催化剂制造烯化氧加成物的方法
    • US06504061B1
    • 2003-01-07
    • US09715331
    • 2000-11-17
    • Takahiro OkamotoShingo UemuraItsuo Hama
    • Takahiro OkamotoShingo UemuraItsuo Hama
    • C07C4103
    • B01J23/26B01J23/34B01J23/78B01J37/03
    • The present invention provides an alkoxylation solid catalyst with which an alkylene oxide adduct having a narrow adduct distribution can be produced while inhibiting formation of high molecular weight polyalkylene glycol having a molecular weight of about tens of thousands as a by-product. The alkoxylation catalyst comprises a metal oxide containing magnesium, aluminum, and at least one metal selected from the metals that belong to group VIA, group VIIA, and group VIII as a third component. The third component metal changes the structure of the active site in the catalyst, for example, by forming a metal oxide having a spinel-type structure with aluminum (e.g. when the third component metal is Mn, MnAl2O4 is formed), so that a side reaction of forming a high molecular weight polyalkylene glycol is inhibited.
    • 本发明提供一种烷氧基化固体催化剂,通过该烷氧基化固体催化剂可以产生具有窄加合物分布的烯化氧加合物,同时抑制分子量约为几万的高分子量聚亚烷基二醇作为副产物形成。 烷氧基化催化剂包含含有镁,铝和选自属于VIA族,VIIA族和VIII族的金属中的至少一种金属作为第三组分的金属氧化物。 第三组分金属改变催化剂中活性位点的结构,例如通过用铝形成具有尖晶石型结构的金属氧化物(例如当第三组分金属是Mn,形成MnAl 2 O 4时),使得侧面 形成高分子量聚亚烷基二醇的反应被抑制。