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    • 4. 发明授权
    • Production of noncyclic polyalkylene polyamines
    • 生产非环状聚亚烷基多胺
    • US5243078A
    • 1993-09-07
    • US370473
    • 1989-06-23
    • Rakesh AgrawalJohn H. Frey
    • Rakesh AgrawalJohn H. Frey
    • C07C209/64
    • C07C209/64
    • A process for selectively preparing predominantly noncyclic polyalkylene polyamines wherein one or more linear alkyleneamines are reacted in the presence of a mordenite catalyst under conditions sufficient to effect a disproportionation reaction. Preferably, the catalyst is prepared by treating the mordenite with an amount of a phosphorus-containing moiety sufficient to provide a catalyst which is impregnated with from about 0.01 to 15 wt % elemental phosphorus based upon the total weight of the impregnated mordenite catalyst. The process is especially useful in the production of diethylenetriamine wherein ethylenediamine is reacted in the presence of LZ-M-8 catalyst which has been treated with an amount of ammonium dihydrogen phosphate sufficient to provide a catalyst which is impregnated with from about 0.1 to 8 wt % elemental phosphorus based upon the total weight of the impregnated mordenite catalyst. The products can be isolated by conventional techniques such as distillation.
    • 主要选择性地制备非环状聚亚烷基多胺的方法,其中一个或多个直链亚烷基胺在丝光沸石催化剂存在下在足以实现歧化反应的条件下反应。 优选地,通过用一定量的含磷部分处理丝素沸石来制备催化剂,所述含磷部分足以提供基于浸渍的丝光沸石催化剂的总重量从约0.01至15重量%的元素磷浸渍的催化剂。 该方法在二亚乙基三胺的制备中特别有用,其中乙二胺在LZ-M-8催化剂存在下反应,LZ-M-8催化剂已用一定量的磷酸二氢铵处理足以提供浸渍有约0.1-8wt 基于浸渍的丝光沸石催化剂的总重量的元素磷。 产品可以通过常规技术如蒸馏分离。