利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

28 条记录 (耗时 0.028 秒)

    REACTOR FOR CARRYING OUT HIGH PRESSURE REACTIONS, METHOD FOR STARTING AND METHOD FOR CARRYING OUT A REACTION
    4.
    发明申请
    REACTOR FOR CARRYING OUT HIGH PRESSURE REACTIONS, METHOD FOR STARTING AND METHOD FOR CARRYING OUT A REACTION 审中-公开
    实施高压反应的反应器，起动方法和进行反应的方法

    公开(公告)号：US20110009627A1

    公开(公告)日：2011-01-13

    申请号：US12864540

    申请日：2009-01-21

    申请人： Helmut Schmidtke ,  Wilhelm Ruppel ,  Helmut Berrsche ,  Johann-Peter Melder ,  Udo Rheude ,  Petr Kubanek ,  Gerhard Ruf ,  Wolfgang Gunkel ,  Wolfgang Mägerlein ,  Karl-Heinz Ross

    发明人： Helmut Schmidtke ,  Wilhelm Ruppel ,  Helmut Berrsche ,  Johann-Peter Melder ,  Udo Rheude ,  Petr Kubanek ,  Gerhard Ruf ,  Wolfgang Gunkel ,  Wolfgang Mägerlein ,  Karl-Heinz Ross

    IPC分类号： B01J19/00 ,  C07D265/30 ,  C07C209/04

    CPC分类号： B01J8/067 ,  B01J8/008 ,  B01J2208/00539 ,  B01J2208/00796

    摘要： The invention relates to a reactor for performing high-pressure reactions, comprising at least one tube (31) whose ends are each conducted through a tube plate (33) and which is bonded to the tube plate (33). The tube plates (33) and the at least one tube (31) are surrounded by an outer jacket, such that an outer space (39) is formed between the tube (31) and the outer jacket. The tube plates (33) each have at least one surface composed of a nickel-base alloy and the at least one tube (31) is in each case welded on to the surface composed of the nickel-base alloy. The surface composed of the nickel-base alloy points in each case in the direction of the particular reactor end. The outer jacket has a thickness which is sufficient to absorb tensile forces which occur between tube (31) and outer jacket owing to a temperature difference in the event of different expansion. The invention further relates to a process for starting up the reactor and for performing an exothermic reaction in the reactor.

    摘要翻译： 本发明涉及一种用于进行高压反应的反应器，包括至少一个管（31），其端部各自通过管板（33）导通，并连接到管板（33）。 管板（33）和至少一个管（31）被外护套围绕，使得在管（31）和外护套之间形成外部空间（39）。 管板（33）各自具有由镍基合金构成的至少一个表面，并且至少一个管（31）各自焊接在由镍基合金构成的表面上。 由镍基合金组成的表面在每种情况下都指向特定反应器端的方向。 外护套的厚度足以吸收由于在不同膨胀的情况下的温度差而在管（31）和外护套之间发生的张力。 本发明还涉及一种启动反应器并在反应器中进行放热反应的方法。

    Preparation of N-methyl-2-pyrrolidone (NMP)
    5.
    发明授权
    Preparation of N-methyl-2-pyrrolidone (NMP) 失效
    制备N-甲基-2-吡咯烷酮（NMP）

    公开(公告)号：US06348601B2

    公开(公告)日：2002-02-19

    申请号：US09774628

    申请日：2001-02-01

    申请人： Frank Ohlbach ,  Johann-Peter Melder ,  Karl-Heinz Ross ,  Martin Rudloff ,  Jörg Liebe

    发明人： Frank Ohlbach ,  Johann-Peter Melder ,  Karl-Heinz Ross ,  Martin Rudloff ,  Jörg Liebe

    IPC分类号： C07D207267

    CPC分类号： C07D207/267

    摘要： N-Methyl-2-pyrrolidone (NMP) is prepared by preparing a mixture comprising monomethylamine, dimethylamine and trimethylamine and ammonia in a first process step by reacting ammonia with methanol at elevated temperature in the presence of a catalyst, separating 10 off the ammonia, reacting the mixture comprising the methylamines with gamma-butyrolactone (&ggr;-BL), in a molar ratio of monomethylamine to &ggr;-BL of at least 1 in a second process step at elevated temperature and superatmospheric pressure, separating NMP and unreacted methylamines from the reaction product and returning unreacted methylamines to the first process step for reaction with methanol and ammonia.

    摘要翻译： 通过在第一工艺步骤中通过在升高的温度下在催化剂存在下使氨与甲醇反应制备包含单甲胺，二甲胺和三甲胺和氨的混合物来制备N-甲基-2-吡咯烷酮（NMP），从氨分离10， 在高温和超大气压下，在第二工艺步骤中使包含甲胺的混合物与γ-丁内酯（γ-BL）以一甲基胺与γ-BL的摩尔比至少为1的反应物反应，从反应中分离NMP和未反应的甲胺 产物并将未反应的甲胺返回到用于与甲醇和氨反应的第一工艺步骤。

    Method for avoiding corrosion
    6.
    发明授权
    Method for avoiding corrosion 有权
    避免腐蚀的方法

    公开(公告)号：US07309403B2

    公开(公告)日：2007-12-18

    申请号：US10572783

    申请日：2004-09-24

    申请人： Werner Reutemann ,  Theodor Weber ,  Karl-Heinz Ross ,  Manfred Julius

    发明人： Werner Reutemann ,  Theodor Weber ,  Karl-Heinz Ross ,  Manfred Julius

    IPC分类号： B01D3/38 ,  B01D3/40 ,  C07C209/86 ,  C07C209/90

    CPC分类号： C07C211/04 ,  C07C209/86 ,  Y10S203/20 ,  Y10S203/24

    摘要： The invention relates to a method of avoiding corrosion in the separation of methylamine from a product stream (10) which is obtained in the preparation of methylamines by gas-phase reaction of methanol and ammonia and includes monomethylamine, dimethylamine, trimethylamine, ammonia and methanol as components, where ammonia is separated off by pure distillation in a first column (1), the remaining components of the product stream obtained as bottoms (12) are fed to a second column (2). Trimethylamine (14) is separated off in the second column (2) by extractive distillation with introduction of water. The further of the product stream obtained as bottoms (15) from the second column (2) are fed to a third column (3), in which monomethylamine and dimethylamine are separated off at the top. The monomethylamine and dimethylamine are separated by distillation in a fourth column (4). To avoid corrosion alkali metal hydroxide is added to the second or third column (3).

    摘要翻译： 本发明涉及一种避免在甲醇与甲醇与氨的气相反应制备甲胺中得到的产物流（10）中分离甲胺的腐蚀方法，包括一甲胺，二甲胺，三甲胺，氨和甲醇 组分，其中在第一塔（1）中通过纯蒸馏分离氨，将作为塔底物（12）获得的产物流的剩余组分进料至第二塔（2）。 通过萃取蒸馏引入三水胺（14）在第二塔（2）中分离。 从第二塔（2）获得的作为塔底物（15）获得的产物流的其它组分进料到第三塔（3），其中一甲胺和二甲胺在顶部分离。 在第四列（4）中通过蒸馏分离一甲胺和二甲胺。 为了避免腐蚀，将碱金属氢氧化物加入到第二或第三塔（3）中。

    Method for avoiding corrosion
    7.
    发明申请
    Method for avoiding corrosion 有权
    避免腐蚀的方法

    公开(公告)号：US20060243584A1

    公开(公告)日：2006-11-02

    申请号：US10572783

    申请日：2004-09-24

    申请人： Werner Reutemann ,  Theodor Weber ,  Karl-Heinz Ross ,  Manfred Julius

    发明人： Werner Reutemann ,  Theodor Weber ,  Karl-Heinz Ross ,  Manfred Julius

    IPC分类号： B01D3/34

    CPC分类号： C07C211/04 ,  C07C209/86 ,  Y10S203/20 ,  Y10S203/24

    摘要： The invention relates to a method of avoiding corrosion in the separation of methylamine from a product stream (10) which is obtained in the preparation of methylamines by gas-phase reaction of methanol and ammonia and comprises monomethylamine, dimethylamine, trimethylamine, ammonia and methanol as components, where ammonia is separated off by pure distillation in a first column (1), the remaining components of the product stream obtained as bottoms (12) are fed to a second column (2). Trimethylamine (14) is separated off in the second column (2) by extractive distillation with introduction of water. The further components of the product stream obtained as bottoms (15) from the second column (2) are fed to a third column (3), in which monomethylamine and dimethylamine are separated off at the top. The monomethylamine and dimethylamine are separated by distillation in a fourth column (4). To avoid corrosion alkali metal hydroxide is added to the second or third column (3).

    摘要翻译： 本发明涉及一种避免在从甲醇和氨气相反应制备甲胺中得到的产物流（10）中甲胺分离腐蚀的方法，包括一甲胺，二甲胺，三甲胺，氨和甲醇 组分，其中在第一塔（1）中通过纯蒸馏分离氨，将作为塔底物（12）获得的产物流的剩余组分进料至第二塔（2）。 通过萃取蒸馏引入三水胺（14）在第二塔（2）中分离。 从第二塔（2）获得的作为塔底物（15）获得的产物流的其它组分进料到第三塔（3），其中一甲胺和二甲胺在顶部分离。 在第四列（4）中通过蒸馏分离一甲胺和二甲胺。 为了避免腐蚀，将碱金属氢氧化物加入到第二或第三塔（3）中。

    Method for Controlling the Reactor Admission Temperature During the Production of Methylamine
    9.
    发明申请
    Method for Controlling the Reactor Admission Temperature During the Production of Methylamine 有权
    控制甲胺生产过程中反应器进口温度的方法

    公开(公告)号：US20070270614A1

    公开(公告)日：2007-11-22

    申请号：US10573185

    申请日：2004-09-24

    申请人： Werner Reutemann ,  Rolf Wambsganss ,  Frank Poplow ,  Theodor Weber ,  Karl-Heinz Ross ,  Manfred Julius

    发明人： Werner Reutemann ,  Rolf Wambsganss ,  Frank Poplow ,  Theodor Weber ,  Karl-Heinz Ross ,  Manfred Julius

    IPC分类号： C07C209/14

    CPC分类号： C07C209/16 ,  C07C211/04

    摘要： The invention relates to a process for preparing methylamines by gas-phase reaction of methanol and ammonia as starting materials at a pressure in the range from 15 to 30 bar in the presence of heterogeneous catalyst. The starting materials are vaporized in one or more heat exchangers (1, 2, 3), superheated to produce a feed gas stream and subsequently fed into a reactor (4), with the mixing of the starting materials being able to be carried out in the feed stream to one of the heat exchangers (1, 2, 3) or at any desired position in a heat exchanger (1, 2, 3). A product gas stream comprising monomethylamine, dimethylamine and trimethylamine and also reaction by-products is taken off from the reactor (4). To control the reactor inlet temperature of the starting materials to a temperature in the range from 360° C. to 370° C., all or some of the feed gas stream or the product gas stream is passed through an adjustable valve (5) in order to vary the pressure and thus the condensation temperature.

    摘要翻译： 本发明涉及通过甲醇和氨作为起始原料在非均相催化剂存在下在15至30巴的压力下气相反应制备甲胺的方法。 起始材料在一个或多个热交换器（1,2,3）中蒸发，过热以产生进料气流，并随后进料到反应器（4）中，原料的混合能够进行 到一个热交换器（1,2,3）或在热交换器（1,2,3）中的任何期望位置的进料流。 从反应器（4）中取出包含一甲胺，二甲胺和三甲胺以及反应副产物的产物气流。 为了将原料的反应器入口温度控制在360℃至370℃的温度范围内，所有或一些进料气流或产物气流通过可调节阀（5），其中 以改变压力，从而改变冷凝温度。

    Method for the Continuous Production of an Amine
    10.
    发明申请
    Method for the Continuous Production of an Amine 失效
    连续生产胺的方法

    公开(公告)号：US20070232833A1

    公开(公告)日：2007-10-04

    申请号：US11596292

    申请日：2005-05-04

    申请人： Frank Haese ,  Arnd Bottcher ,  Bernd Stein ,  Wolfgang Reif ,  Johann-Peter Melder ,  Karl-Heinz Ross ,  Heinz Rutter ,  Shelue Liang ,  Stefan Rittinger

    发明人： Frank Haese ,  Arnd Bottcher ,  Bernd Stein ,  Wolfgang Reif ,  Johann-Peter Melder ,  Karl-Heinz Ross ,  Heinz Rutter ,  Shelue Liang ,  Stefan Rittinger

    IPC分类号： C07C209/60

    CPC分类号： C07C209/26 ,  C07C209/16 ,  C07C213/02 ,  C07D295/027 ,  C07D295/03 ,  C07D295/088 ,  C08G59/50 ,  Y02P20/582 ,  C07C211/06 ,  C07C211/08 ,  C07C211/35 ,  C07C217/08

    摘要： Process for the continuous preparation of an amine by reaction of a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary and secondary amines at a temperature in the range from 60 to 300° C in the presence of a copper-containing catalyst, wherein the catalytically active composition of the catalyst prior to reduction with hydrogen comprises from 20 to 85% by weight of aluminum oxide (Al2O3), zirconium dioxide (ZrO2), titanium dioxide (TiO2) and/or silicon dioxide (SiO2), from 1 to 70% by weight of oxygen-containing compounds of copper, calculated as CuO, from 0 to 50% by weight of oxygen-containing compounds of magnesium, calculated as MgO, oxygen-containing compounds of chromium, calculated as Cr2O3, oxygen-containing compounds of zinc, calculated as ZnO, oxygen-containing compounds of barium, calculated as BaO, and/or oxygen-containing compounds of calcium, calculated as CaO, and less than 30% by weight of oxygen-containing compounds of nickel, calculated as NiO, based on the oxygen-containing compounds of copper, calculated as CuO, and the reaction is carried out isothermally in the gas phase in a tube reactor.

    摘要翻译： 通过伯醇或仲醇，醛和/或酮与氢和选自氨，伯胺和仲胺的氮化合物在60至300℃的温度下反应来连续制备胺的方法 在含铜催化剂存在下，其中催化剂在用氢还原之前的催化活性组合物包含20至85重量％的氧化铝（Al 2 O 3） 3），二氧化锆（ZrO 2），二氧化钛（TiO 2）和/或二氧化硅（SiO 2） ，1至70重量％的以CuO计的含氧化合物的铜，0至50重量％的以氧化镁计的含氧化合物，以氧化铬计算的含铬化合物， 以ZnO计算的含氧化合物锌，以BaO计的钡的含氧化合物和/ 或以CaO计的含氧化合物的钙，小于30重量％的按NiO计的含氧化合物的镍，以CuO计算的含氧化合物计算，并进行反应 在管式反应器中在气相中等温。