中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

36 records (took 0.018 seconds)

    Pyrogenic titanium dioxide
    21.
    发明授权
    Pyrogenic titanium dioxide 失效
    热原二氧化钛

    公开(公告)号：US06663844B1

    公开(公告)日：2003-12-16

    申请号：US09486488

    申请日：2000-02-29

    Applicant: Eberhard Fuchs ,  Klemens Flick

    Inventor： Eberhard Fuchs ,  Klemens Flick

    IPC: C01G2307

    CPC classification number: B01J21/063 ,  B01J37/06 ,  C07D201/08

    Abstract: Shaped materials useful as catalyst for preparing cyclic lactams by reacting aminocarbonitriles with water in the liquid phase in a fixed bed reactor and which have no soluble constituents under the reaction conditions, comprising pyrogenic titanium dioxide as essential constituent, these compositions being obtainable by shaping the pyrogenic titanium dioxide into shaped articles and, before or after the shaping, treating the pyrogenic titanium dioxide with from 0.1 to 30% by weight, based on the pyrogenic titanium dioxide, of an acid in which pyrogenic titanium dioxide is sparingly soluble.

    Abstract translation: 成型材料可用作制备环状内酰胺的催化剂，其通过在固定床反应器中使氨基碳腈与液相中的水反应，并且在反应条件下不含可溶性成分，其包含热解二氧化钛作为必要组分，这些组合物可通过将热解法 二氧化钛成型制品，并且在成形之前或之后，以热解二氧化钛为基准，以热解二氧化钛为基准，以热解二氧化钛微溶于其中的酸为基础，以0.1至30重量％的量处理热解二氧化钛。

    Polycondensation resins and polyaddition resins produced by heterogeneous catalysis
    22.
    发明授权
    Polycondensation resins and polyaddition resins produced by heterogeneous catalysis 失效
    通过非均相催化制备的缩聚树脂和加聚树脂

    公开(公告)号：US06657036B1

    公开(公告)日：2003-12-02

    申请号：US09913602

    申请日：2001-10-04

    Applicant: Werner-Alfons Jung ,  Heinz-Peter Rink ,  Eberhard Fuchs ,  Wolfgang Straehle

    Inventor： Werner-Alfons Jung ,  Heinz-Peter Rink ,  Eberhard Fuchs ,  Wolfgang Straehle

    IPC: C08G1822

    CPC classification number: C08G18/4288 ,  C08G63/82

    Abstract: The invention relates to polycondensation resins which are prepared by polycondensation of compounds having a low molecular weight and separation of small molecules in the presence of at least one hetergeneous catalyst. The invention also relates to polyaddition resins which are prepared by polyaddition in the presence of at least one heterogeneous catalyst. The invention further relates to the use of said polycondensation resins and polyaddition resins for the preparation of moulded parts, adhesives and coating materials.

    Abstract translation: 本发明涉及通过在至少一种异源催化剂的存在下使低分子量化合物和小分子的分离缩聚制备的缩聚树脂。 本发明还涉及在至少一种非均相催化剂存在下通过加聚制备的加聚树脂。 本发明还涉及所述缩聚树脂和加聚树脂在制备模制件，粘合剂和涂料中的用途。

    Caprolactam production process
    23.
    发明授权
    Caprolactam production process 有权
    己内酰胺生产工艺

    公开(公告)号：US06218535B1

    公开(公告)日：2001-04-17

    申请号：US09486642

    申请日：2000-02-29

    Applicant: Eberhard Fuchs ,  Klemens Flick

    Inventor： Eberhard Fuchs ,  Klemens Flick

    IPC: C07D20108

    CPC classification number: C07D201/08 ,  B01J37/06 ,  C07D223/10 ,  Y02P20/52

    Abstract: Cyclic lactams are prepared by reacting aminocarbonitriles with water in the liquid phase in a fixed bed reactor in the presence of a catalyst which comprises a catalytically active oxide, which has no soluble constituents under the reaction conditions and which consists of shaped articles obtainable by shaping the oxide into shaped articles and, before or after said shaping, treating the oxide with from 0.1 to 30% by weight, based on the oxide, of an acid in which the oxide is sparingly soluble.

    Abstract translation: 环状内酰胺通过在固定床反应器中在液相存在下在液相中与水反应来制备，所述催化剂包含催化活性氧化物，所述催化活性氧化物在反应条件下不具有可溶性组分，并且可由成形制品 氧化物变成成型制品，并且在所述成形之前或之后，以0.1-30重量％的氧化物处理氧化物，其中氧化物微溶于其中的酸。

    Preparation of caprolactam
    24.
    发明授权
    Preparation of caprolactam 失效
    己内酰胺的制备

    公开(公告)号：US5874575A

    公开(公告)日：1999-02-23

    申请号：US725438

    申请日：1996-10-03

    Applicant: Eberhard Fuchs ,  Guenther Achhammer

    Inventor： Eberhard Fuchs ,  Guenther Achhammer

    IPC: C07D201/08 ,  C07D223/10 ,  B01D3/00

    CPC classification number: C07D201/08 ,  Y02P20/52 ,  Y10S203/17 ,  Y10S203/90

    Abstract: An improved process for the preparation of caprolactam by heating 6-aminocapronitrile in the presence of a heterogenous catalyst and water under superatmospheric pressure without rapid deactivation of the catalysts used. The process further includes the addition of a low or high boiling alcohol in the heating phase, after which the products are obtained by distillation. The process further includes a method of working up the top and bottom products of the reactors to achieve higher yields.

    Abstract translation: 通过在异丙烯催化剂和水的存在下，在超大气压下加热6-氨基己腈而不快速失活所用催化剂制备己内酰胺的改进方法。 该方法还包括在加热阶段加入低沸点或高沸点醇，之后通过蒸馏获得产物。 该方法还包括处理反应器的顶部和底部产物以实现更高产率的方法。

    Process for producing N-methyl-2(3,4 dimethoxyphenyl)-ethylamine
    25.
    发明授权
    Process for producing N-methyl-2(3,4 dimethoxyphenyl)-ethylamine 失效
    制备N-甲基-2（3,4-二甲氧基苯基） - 乙胺的方法

    公开(公告)号：US5840981A

    公开(公告)日：1998-11-24

    申请号：US945530

    申请日：1997-10-28

    Applicant: Eberhard Fuchs ,  Horst Zimmermann ,  Tom Witzel ,  Boris Breitscheidel ,  Rainer Becker ,  Horst Nauhauser

    Inventor： Eberhard Fuchs ,  Horst Zimmermann ,  Tom Witzel ,  Boris Breitscheidel ,  Rainer Becker ,  Horst Nauhauser

    IPC: B01J23/40 ,  C07C213/02 ,  C07C213/06 ,  C07C209/22

    CPC classification number: C07C213/06 ,  C07C213/02 ,  B01J23/40

    Abstract: A process for preparing N-methyl-2-(3,4-dimethoxyphenyl)-ethylamine comprises hydrogenating 3,4-dimethoxyphenylacetonitrile with a methylamine of the general formula I ##STR1## where R.sup.1 is hydrogen, benzyl or tert-butyl, and hydrogen in the presence of a supported catalyst which comprises from 0.05 to 50% by weight of copper chromite, copper, silver, gold, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum or mixtures thereof, in the presence or absence of water at from 20.degree. to 200.degree. C. under from 1 to 300 bar.

    Abstract translation: PCT No.PCT / EP96 / 01861 Sec。 371日期1998年1月23日 102（e）日期1998年1月23日PCT提交1996年5月4日PCT公布。 公开号WO96 / 36589 日期：1996年11月21日制备N-甲基-2-（3,4-二甲氧基苯基） - 乙胺的方法包括用具有通式I的甲胺（I）氢化3,4-二甲氧基苯基乙腈，其中R1是氢， 苄基或叔丁基，和氢在负载催化剂存在下，其包含0.05至50重量％的亚铬酸铜，铜，银，金，铁，钴，镍，钌，铑，钯，锇，铱， 铂或其混合物，在存在或不存在20至200℃的水的条件下，在1至300巴下。

    Simultaneous preparation of caprolactam and hexamethylenediamine
    26.
    发明授权
    Simultaneous preparation of caprolactam and hexamethylenediamine 失效
    同时制备己内酰胺和己二胺

    公开(公告)号：US5717090A

    公开(公告)日：1998-02-10

    申请号：US565214

    申请日：1995-11-30

    Applicant: Peter Bassler ,  Hermann Luyken ,  Gunther Achhammer ,  Tom Witzel ,  Eberhard Fuchs ,  Rolf Fischer ,  Werner Schnurr

    Inventor： Peter Bassler ,  Hermann Luyken ,  Gunther Achhammer ,  Tom Witzel ,  Eberhard Fuchs ,  Rolf Fischer ,  Werner Schnurr

    IPC: C07D201/08

    CPC classification number: C07D201/08

    Abstract: Caprolactam and hexamethylenediamine are prepared simultaneously starting from adiponitrile by a process in which (a) adiponitrile is partially hydrogenated to give a mixture containing essentially 6-aminocapronitrile, hexamethylenediamine, ammonia, adiponitrile and hexamethyleneimine, (b) the mixture obtained in (a) is subjected to a distillation to give ammonia as the top product and a bottom product I, (c) the bottom product I containing essentially 6-aminocapronitrile, hexamethylenediamine, adiponitrile, hexamethyleneimine, inert compound A and ammonia, the ammonia content being lower than that of the mixture used in stage (b), is subjected to a second distillation to give a mixture comprising the inert compound A and ammonia as the top product and a bottom product II, (d) the bottom product II is subjected, in a third column, to a distillation to give the inert compound A as the top product and a bottom product III, (e) the bottom product III is subjected, in a fourth column, to a distillation to give a top product KP1, containing essentially hexamethyleneimine and a bottom product IV, (f) the top product KP1 is subjected, in a fifth column, to a distillation to give a top product KP2, which contains essentially hexamethyleneimine, and (g) the bottom product IV containing essentially 6-aminocapronitrile and adiponitrile is subjected, in a sixth column, to a distillation to give 6-aminocapronitrile, and the 6-aminocapronitrile thus obtained is then cyclized to give caprolactam.

    Abstract translation: 己二醇和六亚甲基二胺由己二腈通过以下方法同时制备，其中（a）己二腈部分氢化得到基本上含有6-氨基己腈，六亚甲基二胺，氨，己二腈和六亚甲基亚胺的混合物，（b）将（a）中得到的混合物 进行蒸馏以产生氨作为顶部产物，底部产物I，（c）含有基本上为6-氨基己腈，六亚甲基二胺，己二腈，六亚甲基亚胺，惰性化合物A和氨的底部产物I，氨含量低于 将阶段（b）中使用的混合物进行第二次蒸馏，得到包含惰性化合物A和氨作为顶部产物的混合物和底部产物II，（d）底部产物II经受第三塔 进行蒸馏，得到惰性化合物A作为顶部产物和底部产物III，（e）底部产物III在第四列中经受 蒸馏得到基本上为六亚甲基亚胺和底部产物IV的顶部产物KP1，（f）顶部产物KP1在第五个塔中进行蒸馏，得到基本上含有六亚甲基亚胺的顶部产物KP2，和（g ）将含有基本上6-氨基己腈和己二腈的底部产物IV在第六塔中进行蒸馏以得到6-氨基己腈，然后将所得的6-氨基己腈环化，得到己内酰胺。

Patent Agency Ranking