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    • 31. 发明授权
    • Method for producing polyalcohols
    • 生产多元醇的方法
    • US06187971B1
    • 2001-02-13
    • US09331370
    • 1999-06-21
    • Detlef KratzAchim StammerGerhard SchulzGuido Voit
    • Detlef KratzAchim StammerGerhard SchulzGuido Voit
    • C07C3118
    • C07C45/75C07C29/141Y02P20/582C07C31/04C07C31/12C07C31/125C07C31/20C07C31/22
    • Methylolalkanal of the formula II (R=CH2OH, C1-C22-alkyl, aryl or C6-C22-aralkyl) is prepared spe-wise by a) reacting a C2-C24-aldehyde with formaldehyde in the presence of a tertiary amine, b) separating the reaction mixture i) into a bottom fraction comprising the compound of formula II and an incompletely methylolated compound of the formula III and a distillate stream comprising unconverted or partially converted starting materials, or ii) into an aqueous phase and an organic phase, and recycling the distillate stream or the organic phase to a), and c) subjecting the bottom fraction or the aqueous phase i) to a catalytic or thermal reaction to convert the compound of formula III to the compound of formula II and to a corresponding methylene compound of formula IV (R′=H or R) and ii) separating the reaction product into an overhead stream comprising the compound of formula IV and unconverted formaldehyde which is recycled to a), and a bottom fraction comprising the compound of formula II.
    • 在叔胺存在下,通过使C2-C24-醛与甲醛反应制备式II的(C 1 -C 22 - 烷基,芳基或C 6 -C 22 - 芳烷基)的羟甲基烷醛,b) 将反应混合物分离)至包含式II化合物的底部馏分和式III的不完全羟甲基化的化合物和包含未转化的或部分转化的起始物质的馏出物流,或ii)进入水相和有机相,并将馏出物 流或有机相至a),和c)使底部馏分或水相)进行催化或热反应以将式III化合物转化为式II化合物和相应的式IV的亚甲基化合物(R '= H或R)和ii)将反应产物分离成包含式IV化合物和未转化甲醛的塔顶物流,将其再循环至a),以及包含式II化合物的塔底馏分。
    • 33. 发明授权
    • Preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine
    • 3-氨基甲基-3,5,5-三甲基环己胺的制备
    • US5756845A
    • 1998-05-26
    • US608485
    • 1996-02-28
    • Guido VoitTom WitzelBoris BreitscheidelWolfgang HarderHermann LuykenAxel PaulKarl-Heinz RossPeter Wahl
    • Guido VoitTom WitzelBoris BreitscheidelWolfgang HarderHermann LuykenAxel PaulKarl-Heinz RossPeter Wahl
    • B01J23/46B01J23/75B01J23/755C07B61/00C07C209/48C07C211/36
    • C07C209/48C07C2101/14
    • A process for the preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine from 3-cyano-3,5,5-trimethylcyclohexanone which requires three spatially separated reaction spaces, in order to carry out the following three steps in sequence: a) reacting the 3-cyano-3,5,5-trimethylcyclohexanone with excess ammonia on acidic metal-oxide catalysts in a first reaction space at from 20.degree. to 150.degree. C. and from 50 to 300 bar, b) hydrogenating the resultant reaction products using hydrogen in a second reaction space in the presence of excess ammonia and preferably liquid ammonia on hydrogenation catalysts, optionally using basic components or on neutral or basic supports at from 50.degree. to 100.degree. C. and at from 50 to 300 bar, and c) hydrogenating the resultant reaction products in the presence of hydrogen and also ammonia in a third reaction space on hydrogenation catalysts, optionally using basic components or on neutral or basic supports at from 110.degree. to 160.degree. C. and at from 150 to 300 bar.These three steps in sequence provide a substantially complete reaction of the original 3-cyano-3,3,5-trimethylcyclohexanone reactant with a yield of 96% of the desired diamino product in which the cis-content of the diamine is 70%.
    • 从3-氰基-3,5,5-三甲基环己酮制备3-氨基甲基-3,5,5-三甲基环己胺的方法,其需要三个空间分离的反应空间,以便按顺序进行以下三个步骤:a )在20至150℃和50至300巴的第一反应空间中使3-氰基-3,5,5-三甲基环己酮与过量的氨在酸性金属氧化物催化剂上反应,b)将所得反应物氢化 在氢化催化剂存在下,在过量氨和优选液氨存在下在第二反应空间中使用氢的产物,任选使用碱性组分或在中性或碱性载体上在50至100℃和50至300巴条件下,以及 c)在氢化催化剂的第三反应空间中,在氢气和氨的存在下氢化所得反应产物,任选使用碱性组分或在中性或碱性载体上在110至160℃和150至300b ar。 这三个步骤依次提供原始3-氰基-3,3,5-三甲基环己酮反应物的基本上完全的反应物,其中二胺的顺式含量为70%的所需二氨基产物的产率为96%。