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277 条记录 (耗时 0.036 秒)

    Preparation of 1,2,4-triazolium salts and 1,2,4-triazolines
    82.
    发明授权
    Preparation of 1,2,4-triazolium salts and 1,2,4-triazolines 失效
    1,2,4-三唑鎓盐和1,2,4-三唑啉的制备

    公开(公告)号：US5840894A

    公开(公告)日：1998-11-24

    申请号：US668140

    申请日：1996-06-21

    申请人： Regina Schneider ,  Johann-Peter Melder ,  Joaquim Henrique Teles ,  Carsten Groning ,  Klaus Ebel

    发明人： Regina Schneider ,  Johann-Peter Melder ,  Joaquim Henrique Teles ,  Carsten Groning ,  Klaus Ebel

    IPC分类号： C07D249/08 ,  C07D249/12 ,  C07D249/16

    CPC分类号： C07D249/08 ,  C07D249/12

    摘要： A process for the preparation of 1,2,4-triazolium salts Ia ##STR1## where R.sup.1, and R.sup.2 and R.sup.3 are C-organic radicals, it being possible for R.sup.2 and R.sup.3 to be connected to give a 5- to 8-membered ring, R.sup.4 is hydrogen or an organic radical and A is an equivalent of an anion, by reacting an amidrazone II ##STR2## with a carboxylic acid III R.sup.4 --COOH II or a functional derivative (IIIa) of this acid, an anion A being formed from III or IIIa which, optionally, can be replaced by another anion. The triazolium salts have great industrial importance as catalysts for the preparation of acyloine from aldehydes.

    摘要翻译： 一种制备1,2,4-三唑鎓盐的方法，其中R 1和R 2和R 3是C - 有机基团，可以将R 2和R 3连接，得到5-至8- R4是氢或有机基团，A是阴离子的当量，通过使氨基腙II Ib与羧酸III R4-COOH II或该酸的官能衍生物（IIIa）反应，阴离子 A由III或IIIa形成，任选地可以被另一个阴离子代替。 三唑鎓盐作为用于从醛制备偶剂的催化剂具有很大的工业重要性。

    Preparation of aliphatic alpha omega-aminonitriles
    83.
    发明授权
    Preparation of aliphatic alpha omega-aminonitriles 失效
    脂肪族α-ω-氨基腈的制备

    公开(公告)号：US5801268A

    公开(公告)日：1998-09-01

    申请号：US846240

    申请日：1997-04-28

    申请人： Klemens Flick ,  Johann-Peter Melder ,  Werner Schnurr ,  Klaus Ebel ,  Tom Witzel ,  Wolfgang Harder ,  Alwin Rehfinger ,  Rolf Fischer

    发明人： Klemens Flick ,  Johann-Peter Melder ,  Werner Schnurr ,  Klaus Ebel ,  Tom Witzel ,  Wolfgang Harder ,  Alwin Rehfinger ,  Rolf Fischer

    IPC分类号： B01J23/76 ,  B01J23/78 ,  B01J23/889 ,  B01J37/02 ,  C07C253/30 ,  C07C255/24 ,  C07C255/03

    CPC分类号： B01J23/76 ,  B01J23/78 ,  B01J23/8892 ,  B01J23/8898 ,  B01J37/0201 ,  C07C253/30

    摘要： Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process which comprises using a catalyst which (a) contains a compound based on a metal selected from the group consisting of nickel, cobalt, iron, ruthenium and rhodium and (b) contains from 0.01 to 25% by weight, based on (a), of a promoter based on a metal selected from the group consisting of palladium, platinum, iridium, osmium, copper, silver, gold, chromium, molybdenum, tungsten, manganese, rhenium, zinc, cadmium, lead, aluminum, tin, phosphorus, arsenic, antimony, bismuth and rare earth metals and (c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or on an alkaline earth metal, with the proviso that the component (a) is not based on iron or iron and one of the metals selected from the group consisting of cobalt, ruthenium and rhodium when (b) is a promoter based on a metal selected from the group consisting of titanium, manganese, chromium and molybdenum, and with the further proviso that, when a compound based on only ruthenium or rhodium or ruthenium and rhodium or nickel and rhodium is selected as component (a), the promoter (b) may be dispensed with.

    摘要翻译： 脂肪族α，ω-氨基腈通过脂肪族α，ω-二腈在升高的温度和超大气压下，在溶剂和催化剂存在下通过包括使用（a）含有基于化合物的催化剂 在选自镍，钴，铁，钌和铑的金属上，和（b）含有基于（a）0.01至25重量％的基于选自以下的金属的促进剂： 钯，铂，铱，锇，铜，银，金，铬，钼，钨，锰，铼，锌，镉，铅，铝，锡，磷，砷，锑，铋和稀土金属和（c） 基于（a），基于碱金属或碱土金属的化合物为0至5重量％，条件是组分（a）不以铁或铁为基准，并且所选择的金属之一 来自由钴，钌和铑组成的组 母体（b）是基于选自钛，锰，铬和钼的金属的促进剂，进一步的条件是当仅基于钌或铑或钌和铑或镍和铑的化合物为 作为组分（a）选择，可以不用启动子（b）。

    Process for preparing an N,N-dialky-ethanolamine having high color stability
    86.
    发明授权
    Process for preparing an N,N-dialky-ethanolamine having high color stability 有权
    制备具有高颜色稳定性的N，N-二乙醇胺的方法

    公开(公告)号：US08791302B2

    公开(公告)日：2014-07-29

    申请号：US13328230

    申请日：2011-12-16

    申请人： Frank-Friedrich Pape ,  Johann-Peter Melder ,  Alfred Krause ,  Roland Bou Chedid ,  Martin Rudloff

    发明人： Frank-Friedrich Pape ,  Johann-Peter Melder ,  Alfred Krause ,  Roland Bou Chedid ,  Martin Rudloff

    IPC分类号： C07C213/00

    CPC分类号： C07C213/04 ,  C07C215/08

    摘要： A process for preparing an N,N-dialkylethanolamine of the formula I having high color stability where R1 and R2 are each independently a C1- to C8-alkyl group, by reacting ethylene oxide (EO) with a corresponding dialkylamine (R1R2NH) in the presence of water, wherein the reaction is effected continuously in a reactor, the reaction temperature is in the range from 90 to 180° C. and the residence time (RT) in the reactor is in the range from 1 to 7 min, the reactor output is treated thermally at a temperature in the range from 80 to 160° C. over a period in the range from 20 to 1000 min, and then the N,N-dialkylethanolamine is removed by distillation.

    摘要翻译： 制备具有高颜色稳定性的式I的N，N-二烷基乙醇胺的方法，其中R 1和R 2各自独立地为C 1〜C 8烷基，通过使环氧乙烷（EO）与相应的二烷基胺（R 1 R 2 NH） 存在水，其中反应在反应器中连续进行，反应温度为90-180℃，反应器中的停留时间（RT）为1-7分钟，反应器 在80〜160℃的温度范围内，在20〜1000分钟的时间内对产物进行热处理，然后通过蒸馏除去N，N-二烷基乙醇胺。

    PROCESS FOR HYDROGENATING NITRILES
    90.
    发明申请
    PROCESS FOR HYDROGENATING NITRILES 审中-公开
    加氢处理方法

    公开(公告)号：US20120245389A1

    公开(公告)日：2012-09-27

    申请号：US13427308

    申请日：2012-03-22

    申请人： Christof Wilhelm Wigbers ,  Christoph Müller ,  Wolfgang Mägerlein ,  Martin Ernst ,  Thomas Heidemann ,  Johann-Peter Melder ,  Lucia Königsmann ,  Milind Joshi ,  Oliver Bey ,  Bernd Stein

    发明人： Christof Wilhelm Wigbers ,  Christoph Müller ,  Wolfgang Mägerlein ,  Martin Ernst ,  Thomas Heidemann ,  Johann-Peter Melder ,  Lucia Königsmann ,  Milind Joshi ,  Oliver Bey ,  Bernd Stein

    IPC分类号： C07C209/48

    CPC分类号： C07C209/48 ,  C07C2601/14 ,  C07C211/36 ,  C07C211/09

    摘要： The present invention relates to a process for hydrogenating organic nitriles by means of hydrogen in the presence of a catalyst in a reactor, where the shaped body catalyst is arranged in a fixed bed, wherein the shaped body in the shape of spheres or rods has in each case a diameter 3 mm or less, in the shape of tablets a height of 4 mm or less, and in the case of all other geometries in each case has an equivalent diameter L=1/a′ of 0.70 mm or less, where a′ is the external surface area per unit volume (mms2/mmp3), where: a ′ = A p V p , where Ap is the external surface area of the catalyst particle (mms2) and Vp is the volume of the catalyst particle (mmp3). The present invention further relates to a process for preparing downstream products of isophoronediamine (IPDA) or N,N-dimethylaminopropylamine (DMAPA) from amines prepared according to the invention.

    摘要翻译： 本发明涉及一种在反应器中催化剂存在下通过氢气氢化有机腈的方法，其中成形体催化剂布置在固定床中，其中球体或棒状的成形体具有 每个壳体的直径为3mm以下，片状形状为4mm以下，在各种情况下，所有其他几何形状的等效直径L = 1 / a'为0.70mm以下，其中 a'是每单位体积的外表面积（mms2 / mmp3），其中：a'= A p V p，其中Ap是催化剂颗粒的外表面积（mms2），Vp是催化剂颗粒的体积 mmp3）。 本发明还涉及由根据本发明制备的胺制备异佛尔酮二胺（IPDA）或N，N-二甲基氨基丙胺（DMAPA）的下游产物的方法。