利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

39 条记录 (耗时 0.021 秒)

    Supported copper catalyst, process for its preparation and process for the preparation of N-alkylated aromatic amines using this copper catalyst
    1.
    发明授权
    Supported copper catalyst, process for its preparation and process for the preparation of N-alkylated aromatic amines using this copper catalyst 失效
    支持铜催化剂，其制备方法及使用该铜催化剂制备N-烷基化芳族氨基酸的方法

    公开(公告)号：US5097071A

    公开(公告)日：1992-03-17

    申请号：US585590

    申请日：1990-09-20

    申请人： Otto Immel ,  Hans-Helmut Schwarz ,  Rudolf Braden

    发明人： Otto Immel ,  Hans-Helmut Schwarz ,  Rudolf Braden

    IPC分类号： B01J23/889 ,  C07B61/00 ,  C07C209/18 ,  C07C209/36 ,  C07C211/48

    CPC分类号： B01J23/8892 ,  C07C209/18 ,  C07C209/36

    摘要： The novel copper catalyst on an Al.sub.2 O.sub.3 -containing carrier which is impregnated with compounds of manganese and of one or more rare earth metals, having a Cu content of 0.1-5% by weight, a total content of compounds of manganese and of the rare earth metal or metals of 0.05 to 8% by weight, calculated as metals, is described, the weight ratio of rare earth metal(s) to manganese being 5:1-1:5, calculated as metal, and all percentages being relative to the total weight of the catalyst. Such catalyst is prepared by first impregnating the carrier with compounds of manganese and of the rare earth metal or metals, then fixing the copper salt on the impregnated carrier and activating the catalyst in a preferred manner by treatment with H.sub.2 at 150.degree. to 350.degree. C. Such a catalyst is suitable, for example, for the N-alkylation of aromatic amines with alkanols, where the aromatic amines can be prepared from the parent nitro compounds in an alkylation reactor with simultaneous addition of H.sub.2.

    摘要翻译： 在含有Al 2 O 3的载体上的新型铜催化剂，其浸渍有锰和一种或多种稀土金属的化合物，其Cu含量为0.1-5重量％，锰和稀土化合物的总含量 以金属计算为0.05〜8重量％的金属或金属，稀土金属与锰的重量比为5:1-1:5，以金属计算，所有百分比均相对于 催化剂的总重量。 这种催化剂是通过首先用锰和稀土金属或金属的化合物浸渍载体，然后将铜盐固定在浸渍的载体上并以优选的方式通过在150-350℃下用H 2处理来活化催化剂来制备的。 这种催化剂适用于芳族胺与链烷醇的N-烷基化，其中芳族胺可以在烷基化反应器中由母体硝基化合物制备，同时加入H 2。

    Method for processing lactam residues which contain boric acid
    6.
    发明授权
    Method for processing lactam residues which contain boric acid 失效
    处理含有硼酸的内酰胺残基的方法

    公开(公告)号：US4028347A

    公开(公告)日：1977-06-07

    申请号：US584219

    申请日：1975-06-05

    申请人： Hans-Helmut Schwarz ,  Otto Immel

    发明人： Hans-Helmut Schwarz ,  Otto Immel

    IPC分类号： C07D201/16

    CPC分类号： C07D201/16

    摘要： Object of the invention is a process for the treatment of a lactam distillation residue which contains boric acid in which a polyhydric alcohol is added to the crude lactam. By these means the formation of deposits and incrustations on the heating surfaces of the distillation apparatus can be prevented.

    摘要翻译： 本发明的目的是一种处理含有硼酸的内酰胺蒸馏残余物的方法，其中将多元醇加入到粗内酰胺中。 通过这些方法，可以防止在蒸馏装置的加热面上形成沉积物和结垢。

    Supported catalyst, process for its preparation and its use for the preparation of hydroxydiphenyl
    8.
    发明授权
    Supported catalyst, process for its preparation and its use for the preparation of hydroxydiphenyl 失效
    负载催化剂，其制备方法及其在制备羟基二苯基中的应用

    公开(公告)号：US4729977A

    公开(公告)日：1988-03-08

    申请号：US872796

    申请日：1986-06-11

    申请人： Otto Immel ,  Oskar Weissel ,  Hans-Helmut Schwarz

    发明人： Otto Immel ,  Oskar Weissel ,  Hans-Helmut Schwarz

    IPC分类号： B01J23/64 ,  B01J23/656 ,  B01J27/02 ,  C07B61/00 ,  C07C27/00 ,  C07C37/06 ,  C07C37/07 ,  C07C39/15 ,  C07C67/00 ,  B01J31/04 ,  B01J23/26 ,  B01J31/02

    CPC分类号： C07C37/07 ,  B01J23/6562 ,  B01J27/02 ,  C07C37/06

    摘要： A supported catalyst containing rhodium and compounds of chromium, manganese, alkali metals and, if appropriate, compounds of sulphur is prepared by first applying compounds of chromium and manganese to the catalyst support, subsequently heating the catalyst support thus charged to elevated temperatures and then impregnating it with a rhodium solution, drying it, treating it with an alkali metal solution and, if appropriate, applying sulphur compounds to the catalyst support thus treated. The supported catalyst thus prepared can be used for the dehydrogenation of compounds and/or compound mixtures consisting of completely and/or partly hydrogenated hydroxydiphenyl.

    摘要翻译： 通过首先将铬和锰的化合物施加到催化剂载体上，随后将催化剂载体加热至升高的温度，然后浸渍，从而制备含有铑的载体催化剂和铬，锰，碱金属的化合物，以及合适的硫化合物 用铑溶液干燥，用碱金属溶液处理，如果合适，将硫化合物施加到如此处理的催化剂载体上。 由此制备的负载催化剂可用于由完全和/或部分氢化的羟基二苯组成的化合物和/或化合物混合物的脱氢。

    Process for the preparation of propane-1,3-diols, disubstituted in the 2-position
    9.
    发明授权
    Process for the preparation of propane-1,3-diols, disubstituted in the 2-position 失效
    用于制备2-位二取代的丙烷-1,3-二醇的方法

    公开(公告)号：US4181810A

    公开(公告)日：1980-01-01

    申请号：US852117

    申请日：1977-11-16

    申请人： Otto Immel ,  Hans-Helmut Schwarz ,  Oskar Weissel

    发明人： Otto Immel ,  Hans-Helmut Schwarz ,  Oskar Weissel

    IPC分类号： B01J31/00 ,  C07B61/00 ,  C07C27/00 ,  C07C29/14 ,  C07C29/141 ,  C07C29/38 ,  C07C31/20 ,  C07C45/75 ,  C07C67/00 ,  C07C35/02

    CPC分类号： C07C45/75 ,  C07C29/14 ,  C07C29/141

    摘要： A process for the preparation of a propane-1,3-diol, disubstituted in the 2-position, which comprises contacting an ethanal disubstituted in the 2-position, which ethanal has the formula ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and denote optionally substituted alkyl, cycloalkyl, aralkyl or aryl radicals or an optionally substituted heterocyclic radical, or together denote an optionally substituted divalent hydrocarbon radical with formaldehyde in the presence of an acid ion exchanger and thereafter contacting the resultant reaction product with hydrogen under hydrogenation conditions.

    摘要翻译： 制备在2-位二取代的丙烷-1,3-二醇的方法，其包括使2-位二取代的乙醛接触，该乙醛具有式（I）其中R1和R2是 相同或不同，并且表示任选取代的烷基，环烷基，芳烷基或芳基或任选取代的杂环基，或在酸离子交换剂存在下一起表示任选取代的二价烃基与甲醛，然后使所得反应产物与氢 在氢化条件下。