利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

135 条记录 (耗时 0.021 秒)

    1,2-diaminocyclohexane and chemical process
    3.
    发明授权
    1,2-diaminocyclohexane and chemical process 失效
    1,2-二氨基环己烷和化学工艺

    公开(公告)号：US08772546B2

    公开(公告)日：2014-07-08

    申请号：US12612361

    申请日：2009-11-04

    申请人： Ronald L. Amey

    发明人： Ronald L. Amey

    IPC分类号： C07C209/00

    CPC分类号： C07C209/72 ,  C07C2601/14 ,  C07C211/36

    摘要： Disclosed is a process for the preparation of 1,2-cycloaliphatic diamines from 1,2-aromatic diamines. In one embodiment, the process provides a method for making 1,2-diaminocyclohexane by the reaction of 1,2-phenylenediamine contained in a polar, protic solvent with hydrogen in the presence of a supported rhodium catalyst, ammonia, and an inorganic borohydride, and having enhanced overall conversion and selectivity.

    摘要翻译： 公开了从1,2-芳族二胺制备1,2-环脂族二胺的方法。 在一个实施方案中，该方法提供了在负载的铑催化剂，氨和无机硼氢化物的存在下，通过极性质子溶剂中的1,2-苯二胺与氢气反应制备1,2-二氨基环己烷的方法， 并具有增强的整体转化率和选择性。

    Method for Intermittently Producing 4,4'-Diaminodicyclohexylmethane with a Low Amount of the Trans-trans Isomer
    4.
    发明申请
    Method for Intermittently Producing 4,4'-Diaminodicyclohexylmethane with a Low Amount of the Trans-trans Isomer 有权
    间歇生产低反式异构体的4,4'-二氨基二环己基甲烷的方法

    公开(公告)号：US20120323041A1

    公开(公告)日：2012-12-20

    申请号：US13517195

    申请日：2011-06-03

    申请人： Shuang Hu ,  Hao Chen ,  Zilin Ni ,  Wangshun Qi ,  Zhongying Chen ,  Zhiyuan Liu ,  Xudong Wang ,  Zhanyu Zhao ,  Weiqi Hua

    发明人： Shuang Hu ,  Hao Chen ,  Zilin Ni ,  Wangshun Qi ,  Zhongying Chen ,  Zhiyuan Liu ,  Xudong Wang ,  Zhanyu Zhao ,  Weiqi Hua

    IPC分类号： C07C209/00

    CPC分类号： C07C209/72 ,  C07C209/86 ,  C07C2601/14 ,  C07C211/36

    摘要： The present invention discloses a method for intermittently producing 4,4′-diaminodicyclohexyl methane (H12MDA) with a low amount of the trans-trans isomer thereof, which comprises: controlling the reaction process by stopping the reaction when, except for a solvent, the reaction solution comprises MDA of 0-5 wt % and H6MDA of 1-20 wt %; and b) separating the reaction solution obtained from step a) by conventional means to obtain H12MDA product with desired purity, and allowing the un-reacted material and intermediate product to be recycled to the reactor after being accumulated. The method of the present invention decreases the amount of the trans-trans isomer in H12MDA, increases the yield of the reaction, and reduces the production cost. The present invention also provides a post treatment process of the reaction mixture.

    摘要翻译： 本发明公开了间歇地制备低反式异构体的4,4'-二氨基二环己基甲烷（H12MDA）的方法，该方法包括：除溶剂外，通过停止反应来控制反应过程 反应溶液包含0-5重量％的MDA和1-20重量％的H6MDA; 和b）通过常规方法分离由步骤a）获得的反应溶液以获得具有所需纯度的H12MDA产物，并且使未反应的材料和中间产物在积聚后再循环到反应器中。 本发明的方法降低了H12MDA中反式异构体的量，提高了反应的产率，降低了生产成本。 本发明还提供了反应混合物的后处理方法。

    CONTINUOUS METHOD AND REACTOR FOR HYDROGENATING ORGANIC COMPOUNDS
    5.
    发明申请
    CONTINUOUS METHOD AND REACTOR FOR HYDROGENATING ORGANIC COMPOUNDS 审中-公开
    氢化有机化合物的连续方法和反应器

    公开(公告)号：US20110137083A1

    公开(公告)日：2011-06-09

    申请号：US12994575

    申请日：2009-05-20

    申请人： Joachim Pfeffinger

    发明人： Joachim Pfeffinger

    IPC分类号： C07C211/35 ,  B01J19/26

    CPC分类号： B01J4/002 ,  B01J8/025 ,  B01J8/226 ,  B01J8/228 ,  B01J19/246 ,  B01J19/2465 ,  B01J19/30 ,  B01J19/32 ,  B01J2219/00777 ,  C07C29/147 ,  C07C29/19 ,  C07C209/72 ,  C07C2601/14 ,  C07C211/36

    摘要： The present invention relates to a continuous process for hydrogenating organic compounds in a polyphasic system in the presence of a homogeneous or heterogeneous catalyst, which comprises performing the process in two stages, the first stage being performed in a loop reactor with an external heat exchanger and the second stage in a bubble column reactor with limited backmixing.The present invention further relates to a hydrogenation reactor (1) in a tall cylindrical design comprising a concentric guide tube (2) arranged in the lower reaction region and a mixing nozzle (3) directed upward, through which reactants and reaction mixture can be supplied, a pump (4) and a heat exchanger (5), which are present in an external pump circulation system which leads from the reactor to the mixing pump, and with one or more gas- and liquid-permeable internals (10) mounted in the upper region of the reactor, where the ratio of total length to diameter of the hydrogenation reactor (1) is in the range from 5:1 to 100:1 and the ratio of the volume of the upper region of the reactor to the volume of the lower region of the reactor is from 0.05:1 to 10:1.

    摘要翻译： 本发明涉及一种用于在均相或多相催化剂存在下在多相体系中氢化有机化合物的连续方法，其包括在两个阶段中进行该过程，第一阶段在具有外部热交换器的环管反应器中进行， 泡沫塔式反应器的第二阶段有限的回混。 本发明还涉及一种具有高圆柱形设计的氢化反应器（1），其包括布置在下部反应区域中的同心引导管（2）和向上引导的混合喷嘴（3），从而可以提供反应物和反应混合物 ，存在于从反应器引导到混合泵的外部泵循环系统中的泵（4）和热交换器（5），以及安装在一个或多个气体和液体可透过的内部构件（10）中的泵 反应器的上部区域，其中氢化反应器（1）的总长度与直径的比率在5:1至100:1的范围内，并且反应器的上部区域的体积与体积的比率 的反应器的下部区域为0.05:1至10:1。

    Co-production of cyclohexylamine and bis(para-aminocyclohexyl) methane
    7.
    发明申请
    Co-production of cyclohexylamine and bis(para-aminocyclohexyl) methane 失效
    共生产环己胺和双（对 - 氨基环己基）甲烷

    公开(公告)号：US20060135814A1

    公开(公告)日：2006-06-22

    申请号：US11300991

    申请日：2005-12-15

    申请人： Wei-Yang Su ,  Ralph DiGuilio ,  Pete Morford

    发明人： Wei-Yang Su ,  Ralph DiGuilio ,  Pete Morford

    IPC分类号： C07C209/72

    CPC分类号： C07C209/72 ,  C07C2601/14 ,  C07C211/36

    摘要： Embodiments of the present invention disclose a process for the co-production of bis(para-aminocyclohexyl) methane (PACM). Also disclosed are articles of manufacture made using PACM produced by methods of this invention. The methods of the present invention generally include a first mixture having methylene di-aniline (MDA) and a second aromatic amine. The first mixture has less than 15% polymeric MDA by weight and the second aromatic amine is present in an amount to render the first mixture a liquid. The first mixture is hydrogenated to produce a product mixture comprising PACM and at least one second non-aromatic amine.

    摘要翻译： 本发明的实施方案公开了双（对 - 氨基环己基）甲烷（PACM）共同生产的方法。 还公开了使用通过本发明的方法生产的PACM制造的制品。 本发明的方法通常包括具有亚甲基二苯胺（MDA）和第二芳族胺的第一混合物。 第一混合物的重量小于15％的聚合物MDA，第二芳族胺以使第一混合物成为液体的量存在。 将第一混合物氢化以产生包含PACM和至少一种第二非芳族胺的产物混合物。

    Process for hydrogenating an aromatic amine in the presence of a supported ruthenium catalyst
    9.
    发明申请
    Process for hydrogenating an aromatic amine in the presence of a supported ruthenium catalyst 有权
    在负载的钌催化剂存在下氢化芳族胺的方法

    公开(公告)号：US20040034252A1

    公开(公告)日：2004-02-19

    申请号：US10449772

    申请日：2003-06-02

    申请人： Degussa AG

    发明人： Guido Stochniol ,  Bernd Jaeger ,  Thomas Haas ,  Norbert Finke ,  Werner Burkhardt ,  Juergen Grunert

    IPC分类号： C07C29/72

    CPC分类号： C07C209/72 ,  B01J23/462 ,  B01J35/10 ,  B01J35/108 ,  C07C2601/14 ,  C07C211/36

    摘要： The invention relates to a process for hydrogenating an aromatic amine that has at least one amino group bound to an aromatic nucleus with hydrogen in the presence of a supported catalyst that contains at least ruthenium as active metal. The catalyst support has a BET surface area in the range from greater than 30 m2/g to less than 70 m2/g and more than 50% of the pore volume of the catalyst support is formed by macropores having a pore diameter of greater than 50 nm and less than 50% are mesopores having a pore diameter of 2 to 50 nm.

    摘要翻译： 本发明涉及一种在至少含有钌作为活性金属的载体催化剂存在下氢化芳族胺的方法，所述芳族胺具有至少一个与芳族核结合的氨基。 催化剂载体的BET表面积在大于30m 2 / g至小于70m 2 / g的范围内，催化剂载体的孔体积的50％以上由具有 孔径大于50nm且小于50％的是孔径为2〜50nm的中孔。