中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

68 records (took 0.015 seconds)

    Coproduction of 6-aminocapronitrile and hexamethylenediamine
    41.
    发明授权
    Coproduction of 6-aminocapronitrile and hexamethylenediamine 失效
    共聚6-氨基己腈和六亚甲基二胺

    公开(公告)号：US5874607A

    公开(公告)日：1999-02-23

    申请号：US635653

    申请日：1996-04-22

    Applicant: Werner Schnurr ,  Guido Voit ,  Klemens Flick ,  Rolf-Hartmuth Fischer

    Inventor： Werner Schnurr ,  Guido Voit ,  Klemens Flick ,  Rolf-Hartmuth Fischer

    IPC: B01J23/78 ,  B01J23/94 ,  B01J27/187 ,  B01J27/28 ,  B01J38/10 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24 ,  C07C255/03

    CPC classification number: C07C209/48 ,  C07C253/30 ,  Y02P20/584

    Abstract: A process for the coproduction of 6-aminocapronitrile (ACN) and hexamethylenediamine (HMD) by treatment of adiponitrile (ADN) with hydrogen in the presence of a nickel-containing catalyst at temperatures not below room temperature and elevated hydrogen partial pressure in the presence or absence of a solvent comprises, after the conversion based on ADN and/or the selectivity based on ACN has or have dropped below a defined value(a) interrupting the treatment of ADN with hydrogen by stopping the feed of ADN and of the solvent, if used,(b) treating the catalyst at from 150.degree. to 400.degree. C. with hydrogen using a hydrogen pressure within the range from 0.1 to 30 MPa and a treatment time within the range from 2 to 48 h, and(c) then continuing the hydrogenation of ADN with the treated catalyst of stage (b).

    Abstract translation: 在含镍催化剂存在下，在不低于室温的温度和氢分压升高的情况下，通过用氢气处理己二腈（ADN），共同生产6-氨基己腈（ACN）和六亚甲基二胺（HMD）的方法， 没有溶剂包括在基于ADN的转化和/或基于ACN的选择性之后，或者已经降低到低于定义的值（a）通过停止ADN和溶剂的进料而中止用氢处理ADN，如果 使用，（b）使用氢气压力为0.1〜30MPa，处理时间为2〜48小时，用氢气在150〜400℃下处理催化剂，（c）然后继续 用（b）阶段处理的催化剂氢化ADN。

    Two-stage method for producing butane diol with intermediated separation of succinic anhydride
    43.
    发明申请
    Two-stage method for producing butane diol with intermediated separation of succinic anhydride 失效
    制备丁二酸酐中间分离丁二醇的两阶段方法

    公开(公告)号：US20060167323A1

    公开(公告)日：2006-07-27

    申请号：US10516922

    申请日：2003-06-11

    Applicant: Michael Hesse ,  Stephan Schlitter ,  Holger Borchert ,  Markus Schubert ,  Markus Rosch ,  Nils Bottke ,  Rolf-Hartmuth Fischer ,  Alexander Weck ,  Gunther Windecker ,  Gunnar Heydrich

    Inventor： Michael Hesse ,  Stephan Schlitter ,  Holger Borchert ,  Markus Schubert ,  Markus Rosch ,  Nils Bottke ,  Rolf-Hartmuth Fischer ,  Alexander Weck ,  Gunther Windecker ,  Gunnar Heydrich

    IPC: C07C31/18

    CPC classification number: C07C29/149 ,  C07C31/207

    Abstract: The present invention relates to a process for preparing optionally alkyl-substituted 1,4-butanediol by two-stage catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or of derivatives thereof having the following steps: a) introducing a gas stream of a C4-dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 2 to 60 bar into a first reactor and catalytically hydrogenating it in the gas phase to a product which contains mainly optionally alkyl-substituted γ-butyrolactone; b) removing succinic anhydride from the product obtained in step a), preferably to a residual level of from

    Abstract translation: 本发明涉及通过在具有下列物质的C 4 - 二羧酸和/或其衍生物的气相中通过两阶段催化氢化制备任选的烷基取代的1,4-丁二醇的方法 步骤：a）将200-300℃和2-60巴的C 4-14二羧酸或其衍生物的气流引入第一反应器，并将其催化氢化为 气相至主要含有烷基取代的γ-丁内酯的产物; b）从步骤a）中获得的产物中除去琥珀酸酐，优选残留量为约0.3至0.2重量％; c）将步骤b）中获得的产物流在150℃至240℃的温度和15至100巴的压力下引入第二反应器，并将其在气相中催化氢化为任选的烷基 - 取代的1,4-丁二醇; d）从中间体，副产物和任何未转化的反应物中除去所需的产物; e）任选地将未转化的中间体再循环到一个或两个氢化步骤中，所述氢化步骤各自使用催化剂，所述催化剂包含95重量％，优选5至95重量％，特别是10至80重量％的CuO ，和> = 5重量％，优选5至95重量％，特别是20至90重量％的氧化载体，并且所述第二反应器具有比所述第一反应器更高的压力。

    Method for purifying caprolactam
    44.
    发明申请
    Method for purifying caprolactam 有权
    己内酰胺纯化方法

    公开(公告)号：US20060041122A1

    公开(公告)日：2006-02-23

    申请号：US10534802

    申请日：2003-11-11

    Applicant: Rolf-Hartmuth Fischer ,  Hermann Luyken ,  Andreas Ansmann ,  Peter Babler ,  Christoph Benisch ,  Stefan Maixner ,  Johann-Peter Melder

    Inventor： Rolf-Hartmuth Fischer ,  Hermann Luyken ,  Andreas Ansmann ,  Peter Babler ,  Christoph Benisch ,  Stefan Maixner ,  Johann-Peter Melder

    IPC: C07D201/16

    CPC classification number: C07D201/16 ,  C07D201/08

    Abstract: A process for removing high boilers from crude caprolactam which comprises high boilers, caprolactam and in some cases low boilers, and which has been obtained by a) reacting 6-aminocapronitrile with water to give a reaction mixture b) removing ammonia and unconverted water from the reaction mixture to obtain crude caprolactam, which comprises c) feeding the crude caprolactam to a distillation apparatus to obtain a first substream via the top as a product and a second substream via the bottom, by setting the pressure in the distillation in such a way that the bottom temperature does not go below 170° C., and adjusting the second substream in such a way that the caprolactam content of the second substream is not less than 10% by weight, based on the entire second substream.

    Abstract translation: 一种从粗己内酰胺中除去高锅炉的方法，其包括高锅炉，己内酰胺，在某些情况下是低锅炉，并且通过以下方法获得：a）使6-氨基己腈与水反应得到反应混合物; b）除去氨和未转化的水 反应混合物以获得粗己内酰胺，其包括c）将粗己内酰胺加入到蒸馏装置中，通过顶部获得第一子流作为产物，通过底部通过设置第二子流，通过将蒸馏中的压力设定为使得 底部温度不低于170℃，并且调节第二子流，使得第二子流的己内酰胺含量基于整个第二子流不小于10重量％。

    Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof
    46.
    发明申请
    Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof 有权
    降低含氨基腈，二胺，二腈或其混合物的混合物中不饱和胺含量的方法

    公开(公告)号：US20050222449A1

    公开(公告)日：2005-10-06

    申请号：US10515281

    申请日：2003-05-21

    Applicant: Stefan Maixner ,  Christoph Benisch ,  Hermann Luyken ,  Peter Bassler ,  Rolf-Hartmuth Fischer ,  Johann-Peter Melder ,  Andreas Ansmann

    Inventor： Stefan Maixner ,  Christoph Benisch ,  Hermann Luyken ,  Peter Bassler ,  Rolf-Hartmuth Fischer ,  Johann-Peter Melder ,  Andreas Ansmann

    IPC: C07C209/84 ,  C07C211/09 ,  C07C211/12 ,  C07C253/34 ,  C07C255/09 ,  C07C255/24

    CPC classification number: C07C253/34 ,  C07C255/24

    Abstract: A process for reducing the level of an aliphatic monounsaturated amine (IV) in a mixture (V) containing an aminonitrile (I) or a diamine (II) or a dinitrile (III) or mixtures thereof as well as said amine (IV) by a) reacting said mixture (V) with an anionic nucleophile (VI) which contains a nucleophilic atom selected from the group consisting of oxygen, nitrogen and sulfur, which is capable of taking up an H+ ion to form an acid having a pKa value in the range from 7 to 11, as measured in water at 25° C., and which has a relative nucleophilicity, as measured in methyl perchlorate/methanol at 25° C., in the range from 3.4 to 4.7 when said nucleophilic atom is oxygen, in the range from 4.5 to 5.8 when said nucleophilic atom is nitrogen, and in the range from 5.5 to 6.8 when said nucleophilic atom is sulfur, in an amount in the range from 0.01 to 10 mol per mole of said amine (IV) in said mixture (V) at a temperature in the range from 50 to 200° C. to obtain a mixture (VII), b) distilling said aminonitrile (I) or said diamine (II) or said dinitrile (III) or mixtures thereof from said mixture (VII) at a temperature in the range from 50 to 200° C. and at a pressure in the range from 0.1 to 100 kPa to obtain a bottom product (VIII), which comprises c) distilling an aminonitrile (I) or diamine (II) or dinitrile (III) or mixtures thereof from said bottom product (VIII) at a temperature which is lower than that chosen in step b).

    Abstract translation: 含有氨基腈（I）或二胺（II）或二腈（III）或其混合物以及所述胺（IV）的混合物（V）中的脂肪族单不饱和胺（IV）的水平以及所述胺（IV） a）使所述混合物（V）与含有选自氧，氮和硫的亲核原子的阴离子亲核试剂（VI）反应，其能够吸收H + 形成在25℃下在水中测量的具有7至11的pK值的酸，其在25℃下在高氯酸甲酯/甲醇中测得的具有相对亲核性 当所述亲核原子为氧时，在3.4至4.7的范围内，当所述亲核原子为氮时，在4.5至5.8的范围内，当所述亲核原子为硫时在5.5至6.8的范围内，其量为 在所述混合物（V）中，在50至200℃的温度范围内每摩尔所述胺（IV）为0.01至10摩尔的范围，以获得混合物 （VII）中，b）在50至200℃的温度下，从所述混合物（VII）中蒸馏所述氨基腈（I）或所述二胺（II）或所述二腈（III）或其混合物， 压力为0.1至100kPa，以获得底部产物（VIII），其包括c）在所述底部产物（VIII）中蒸馏氨基腈（I）或二胺（II）或二腈（III）或其混合物， 温度低于步骤b）中选择的温度。

    Preparation of cyclopentenones
    48.
    发明授权
    Preparation of cyclopentenones 失效
    环戊烯酮的制备

    公开(公告)号：US06828464B2

    公开(公告)日：2004-12-07

    申请号：US10718795

    申请日：2003-11-24

    Applicant: Shelue Liang ,  Rolf-Hartmuth Fischer ,  Sylvia Huber-Dirr ,  Andrea Haunert

    Inventor： Shelue Liang ,  Rolf-Hartmuth Fischer ,  Sylvia Huber-Dirr ,  Andrea Haunert

    IPC: C07C4554

    CPC classification number: B01J23/04 ,  C07C45/48 ,  Y02P20/582 ,  C07C49/597

    Abstract: The present invention provides a process for preparing 2-cyclopentenones of the general formula: where R1 to R4 are each hydrogen atoms or are alkyl or alkenyl radicals having from 1 to 12 carbon atoms, cycloalkyl or cycloalkenyl radicals having from 5 to 7 carbon atoms, aralkylene or aryl radicals, by converting hexenedioic acids and/or their esters of the general formulae where R1 to R4 are each as defined above and R5 and R6 are each hydrogen atoms or are alkyl radicals having from 1 to 12 carbon atoms, cycloalkyl radicals having 5 or 6 carbon atoms, aralkyl or aryl radicals, at temperatures of from 150 to 450° C., over solid, oxidic catalysts, wherein the catalysts on an oxidic support material comprise from 0.01 to 5% by weight of at least one alkali metal oxide.

    Abstract translation: 本发明提供一种制备以下通式的2-环戊烯酮的方法：其中R 1至R 4各自为氢原子或具有1至12个碳原子的烷基或烯基，环烷基或环烯基具有 5-7个碳原子的亚芳基或芳基，通过将通式R 1至R 4的通式所示的己烯二酸和/或它们的酯各自如上所定义，R 5和R 6各自为 氢原子或具有1至12个碳原子的烷基，具有5或6个碳原子的环烷基，芳烷基或芳基，在150-450℃的温度下，在固体，氧化催化剂上，其中催化剂在 氧化载体材料包含0.01至5重量％的至少一种碱金属氧化物。

    Preparation of cyclic lactams
    49.
    发明授权
    Preparation of cyclic lactams 有权
    制备环状内酰胺

    公开(公告)号：US06683178B2

    公开(公告)日：2004-01-27

    申请号：US10257877

    申请日：2002-10-17

    Applicant: Frank Ohlbach ,  Andreas Ansmann ,  Peter Bassler ,  Rolf-Hartmuth Fischer ,  Hermann Luyken ,  Stefan Maixner ,  Johann-Peter Melder

    Inventor： Frank Ohlbach ,  Andreas Ansmann ,  Peter Bassler ,  Rolf-Hartmuth Fischer ,  Hermann Luyken ,  Stefan Maixner ,  Johann-Peter Melder

    IPC: C07D20108

    CPC classification number: C07D201/08 ,  C07D201/16

    Abstract: The invention relates to a method for producing cyclic lactams of formula (II) by reacting a compound (I) of formula (I) with water in the presence of an organic, liquid dilution agent in the liquid phase. In formula (II), n and m respectively can have the values 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 and the sum of n+m is at least 3, preferably at least 4 and R1 and R2 represent C1-C6 alkyl, C5-C7 cycloalkyl or C6-C12 aryl groups. In formula (I), R1, R2, m and n are defined as above and R represents nitrile, carboxylic acid amide and carboxylic acid groups. The inventive method is characterized in that a) compound (I) is reacted with water in the liquid phase in the presence of an organic, liquid dilution agent (III) to form a mixture (IV) containing a lactam (II) and said mixture (IV) is subjected to an aqueous treatment to obtain a two-phase system.

    Abstract translation: 本发明涉及在液相中有机液体稀释剂存在下使式（I）化合物（I）与水反应制备式（II）的环状内酰胺的方法。 在式（II）中，n和m分别具有0,1,2,3,4,5,6,7,8和9的值，并且n + m的和至少为3，优选至少为4，并且 R 1和R 2代表C 1 -C 6烷基，C 5 -C 7环烷基或C 6 -C 12芳基。 在式（I）中，R 1，R 2，m和n如上定义，R代表腈，羧酸酰胺和羧酸基团。 本发明的方法的特征在于：a）化合物（I）在液相中在有机液体稀释剂（III）的存在下与水反应，形成含有内酰胺（II）的混合物（IV），所述混合物 （IV）进行水处理以获得两相体系。

Patent Agency Ranking