Process for producing caprolactam
    4.
    发明授权
    Process for producing caprolactam 失效
    己内酰胺的制备方法

    公开(公告)号:US06683177B1

    公开(公告)日:2004-01-27

    申请号:US08952208

    申请日:1997-11-06

    IPC分类号: C07D20108

    CPC分类号: C07D201/08 C07D223/12

    摘要: A process for preparing caprolactam by reacting 6-aminocapronitrile with water in the presence of catalysts comprises using a starting mixture of 6-aminocapronitrile and the tetrahydroazepine derivative of the formula and conducting the reaction in liquid phase in the presence of a heterogeneous catalyst. Also describes a process for preparing said tetrahydroazepine derivative I and its use for preparing caprolactam and polycaprolactam.

    摘要翻译: 在催化剂存在下使6-氨基己腈与水反应制备己内酰胺的方法包括使用6-氨基己腈和下式的四氢氮杂衍生物的起始混合物,并在非均相催化剂存在下进行液相反应。 还描述了制备所述四氢氮杂衍生物I的方法及其制备己内酰胺和聚己内酰胺的用途。

    Method for producing polyamides
    5.
    发明授权
    Method for producing polyamides 失效
    生产聚酰胺的方法

    公开(公告)号:US06353085B1

    公开(公告)日:2002-03-05

    申请号:US09622321

    申请日:2000-08-16

    IPC分类号: C08G6914

    CPC分类号: C08G69/20 C08G69/18

    摘要: In a process for producing polyamides by polymerization of lactams in the presence of metal oxides as heterogeneous catalysts, the metal oxides are used in a form which permits mechanical removal from the reaction mixture and are removed from the reaction mixture in the course of or on completion of the polymerization.

    摘要翻译: 在作为非均相催化剂的金属氧化物存在下通过内酰胺聚合制备聚酰胺的方法中,金属氧化物以允许从反应混合物中机械除去并在完成过程中从反应混合物中除去的形式使用金属氧化物 的聚合。

    Method of purifying .epsilon.-caprolactam
    6.
    发明授权
    Method of purifying .epsilon.-caprolactam 失效
    ε-己内酰胺的纯化方法

    公开(公告)号:US5952493A

    公开(公告)日:1999-09-14

    申请号:US202094

    申请日:1998-12-09

    申请人: Eberhard Fuchs

    发明人: Eberhard Fuchs

    CPC分类号: C07D201/16

    摘要: Crude caprolactam is purified by reaction with a complex hydride of boron or of aluminum.

    摘要翻译: PCT No.PCT / EP98 / 03098 371 1998年12月9日第 102(e)日期1998年12月9日PCT提交1997年6月13日PCT公布。 公开号WO97 / 47596 日期1997年12月18日粗制己内酰胺通过与硼或铝的复合氢化物反应而纯化。

    Process for continuous purification of crude caprolactam prepared from
6-aminocapronitrile
    7.
    发明授权
    Process for continuous purification of crude caprolactam prepared from 6-aminocapronitrile 失效
    从6-氨基己腈制备的己内酰胺的连续纯化方法

    公开(公告)号:US5496941A

    公开(公告)日:1996-03-05

    申请号:US375410

    申请日:1995-01-18

    IPC分类号: C07D201/08 C07D201/16

    CPC分类号: C07D201/16 Y02P20/52

    摘要: Crude capronitrile is purified by hydrogenation, subsequent treatment in an acidic medium and subsequent distillation in an alkaline medium, by a process in which(a) 6-aminocapronitrile is converted into crude caprolactam by reaction with water,(b) high boilers and low boilers are separated off from the crude caprolactam from step (a),(c) the crude caprolactam from step (b) is treated with hydrogen at from 50.degree. to 150.degree. C. and from 1.5 to 250 bar in the presence of a hydrogenation catalyst and, if desired, of a solvent to give a mixture A,(d1) mixture A in a solvent is passed, at from 30.degree. to 80.degree. C. and from 1 to 5 bar, over an ion exchanger containing terminal acid groups to give a mixture B1, or(d2) mixture A is distilled in the presence of sulfuric acid, any solvent present being removed before the addition of the sulfuric acid, to give a mixture B2, and(e) mixture B1 or mixture B2 is distilled in the presence of a base to give pure caprolactam.

    摘要翻译: 通过氢化纯化粗碳腈,随后在酸性介质中处理,随后在碱性介质中进行蒸馏,其中(a)通过与水反应将(a)6-氨基己腈转化为粗己内酰胺,(b)高锅炉和低锅炉 与步骤(a)中的粗己内酰胺分离,(c)步骤(b)中的粗己内酰胺在氢化催化剂存在下在50-150℃和1.5-250巴下用氢处理 并且如果需要,得到溶剂以得到混合物A,(d1)溶剂中的混合物A在30℃至80℃和1至5巴条件下通过含有末端酸基团的离子交换剂 得到混合物B1,或(d2)在硫酸存在下蒸馏混合物A,在加入硫酸之前,除去存在的任何溶剂,得到混合物B2,并且(e)蒸馏出混合物B1或混合物B2 在碱的存在下得到纯己内酰胺。

    Preparation of secondary and tertiary 2-methyl-1, 5-pentanediamines
    8.
    发明授权
    Preparation of secondary and tertiary 2-methyl-1, 5-pentanediamines 失效
    二级和叔级2-甲基-1,5-戊二胺的制备

    公开(公告)号:US06198002B1

    公开(公告)日:2001-03-06

    申请号:US09324715

    申请日:1999-06-03

    IPC分类号: C07C20948

    CPC分类号: C07C211/09 C07C209/48

    摘要: A process for preparing a secondary or tertiary 2-methyl-1,5-pen-tanediamine of the formula I where R1 and R2 are H, C1-C20-alkyl, C3-C8-cycloalkyl, aryl, C7-C20-arylalkyl, where the radicals R1 and R2 may bear substituents selected from the group consisting of C1-C20-alkyl, C1-C20-alkoxy, C6-C20-aryloxy and hydroxy, and R1 and R2 are not simultaneously hydrogen, or R1 and R2 are together an unsubstituted or C1-C20-alkyl- and/or C1-C20-alkoxy-substituted C3-C7-alkylene chain which may, if desired, be interrupted by one or two O or NR3 groups, where R3 is H or C1-C20-alkyl comprises reacting 2-methylglutarodinitrile with a primary or secondary amine of the formula R1R2NH and hydrogen at from 50 to 250° C. and pressures of from 0.5 to 35 MPa in the presence of an oxidic supported catalyst comprising one or more noble metals which has been treated with hydrogen at from 50 to 300° C. for at least 0.5 hour before use. The compound 1,5-bis(dimethylamino)-2-methylpentane is also claimed.

    摘要翻译: 制备式I其中R 1和R 2的仲或叔2-甲基-1,5-辛烷二胺的方法是H,C 1 -C 20 - 烷基,C 3 -C 8 - 环烷基,芳基,C 7 -C 20 - 芳烷基,其中 基团R 1和R 2可以具有选自C 1 -C 20 - 烷基,C 1 -C 20 - 烷氧基,C 6 -C 20 - 芳氧基和羟基的取代基,并且R 1和R 2不同时为氢,或者R 1和R 2一起为未取代或未取代的 C 1 -C 20烷基 - 和/或C 1 -C 20 - 烷氧基取代的C 3 -C 7 - 亚烷基链,如果需要,可以被一个或两个O或NR 3基团中断,其中R 3是H或C 1 -C 20烷基, - 甲基戊二腈与式R1R2NH的伯胺或仲胺和50-250℃的氢气和0.5-35MPa的压力在包含一种或多种已经用氢处理过的贵金属的氧化载体催化剂存在下 在使用前至少0.5小时,从50至300℃。 还要求化合物1,5-双(二甲基氨基)-2-甲基戊烷。

    Method for hydrogenating compounds from the group of imines or enamines
    9.
    发明授权
    Method for hydrogenating compounds from the group of imines or enamines 失效
    从亚胺或烯胺类中氢化化合物的方法

    公开(公告)号:US6153748A

    公开(公告)日:2000-11-28

    申请号:US367069

    申请日:1999-08-09

    CPC分类号: C07D295/023

    摘要: A process for hydrogenating a compound in the group of the imines or enamines I to an amine II in the presence of a nitrile III, said nitrile III being essentially not hydrogenated comprises reacting a mixture comprising a compound I and a nitrile III with a gas comprising molecular hydrogen in the presence of a catalyst IV.

    摘要翻译: PCT No.PCT / EP98 / 00414 Sec。 371日期1999年8月9日 102(e)日期1999年8月9日PCT提交1998年1月26日PCT公布。 第WO98 / 34899号公报 日期1998年8月13日在腈III存在下氢化亚胺中的化合物或使胺I化合到胺II上的方法,所述腈III基本上未氢化,包括将包含化合物I和腈 III在催化剂IV存在下具有包含分子氢的气体。

    Preparation of lactams
    10.
    发明授权
    Preparation of lactams 失效
    内酰胺的制备

    公开(公告)号:US5502185A

    公开(公告)日:1996-03-26

    申请号:US358413

    申请日:1994-12-19

    IPC分类号: C07D201/08

    CPC分类号: C07D201/08 Y02P20/52

    摘要: Cyclic lactams are prepared by reacting an aminocarboxylic acid compound of the formula IH.sub.2 N--(CH.sub.2).sub.m --COR.sup.1 Iwhere R.sup.1 is --OH, --O--C.sub.1 -C.sub.12 -alkyl or --NR.sup.2 R.sup.3 and R.sup.2 and R.sup.3, independently of one another, are each hydrogen, C.sub.1 -C.sub.12 -alkyl or C.sub.5 -C.sub.8 -cycloalkyl and m is an integer from 3 to 12, with water by a process in which the reaction is carried out in the liquid phase using a heterogeneous catalyst.

    摘要翻译: 环状内酰胺是通过使式ⅠH2N-(CH2)m-COR1I的氨基羧酸化合物,其中R1是-OH,-O-C1-C12-烷基或-NR2R3,R2和R3彼此独立地进行反应, 各自为氢,C 1 -C 12 - 烷基或C 5 -C 8 - 环烷基,m为3至12的整数,通过使用多相催化剂在液相中进行反应的方法与水反应。