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    • 1. 发明授权
    • Preparation of aziridines
    • 氮丙啶的制备
    • US5693825A
    • 1997-12-02
    • US705768
    • 1996-08-30
    • Uwe DingerdissenGunter LauthPeter TrubenbachUlrich Steuerle
    • Uwe DingerdissenGunter LauthPeter TrubenbachUlrich Steuerle
    • B01J27/16B01J37/00C07B61/00C07D203/02C07D203/08C07D203/10C07D203/12C07D203/14
    • C07D203/02C07D203/08Y10S977/70Y10S977/84Y10S977/915
    • A process for the preparation of an aziridine, especially ethyleneimine but also its derivatives in which one or both of its carbon atoms may be substituted once or twice by C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl or aryl, and the nitrogen atom is substituted by hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, aryl benzyl, C.sub.1 -C.sub.8 -hydroxyalkyl or C.sub.1 -C.sub.8 - aminoalkyl wherein ethanolamine or its derivatives bearing the same carbon and nitrogen substituents is reacted in the gas phase for dehydration at from 200.degree. to 600.degree. C. and from 0.001 to 5 bar, especially 0.1 to 1 bar, over a heterogeneous catalyst shaped as presintered moldings and maintained as a steady-state or as a circulating fluidized bed catalyst. The preferred fluidizable presintered moldings are those prepared from a ceramic powder as a catalyst or catalyst carrier having a uniform pore size in the macroporous range.
    • 一种制备氮丙啶,特别是乙烯亚胺的方法,也是其中一个或两个碳原子被C1-C8-烷基,C3-C8-环烷基或芳基取代一次或两次的衍生物,和氮原子是 被氢,C1-C8-烷基,C3-C8-环烷基,芳基苄基,C1-C8-羟基烷基或C1-C8-氨基烷基取代,其中具有相同碳和氮取代基的乙醇胺或其衍生物在气相中反应脱水 在200至600℃和0.001至5巴,特别是0.1至1巴之间,在作为预烧结模制品成型并保持为稳态或作为循环流化床催化剂的多相催化剂上。 优选的可流化的预烧结模制品是由陶瓷粉末作为催化剂或在大孔范围内具有均匀孔径的催化剂载体制备的。