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42 条记录 (耗时 0.026 秒)

    Method for processing lactam residues which contain boric acid
    3.
    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 copper catalyst, process for its preparation and process for the preparation of N-alkylated aromatic amines using this copper catalyst
    5.
    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。

    Process for the preparation of 2,2-dimethylolalkanals
    7.
    发明授权
    Process for the preparation of 2,2-dimethylolalkanals 失效
    制备2,2-二羟甲基烷醇的方法

    公开(公告)号：US4247485A

    公开(公告)日：1981-01-27

    申请号：US22009

    申请日：1979-03-19

    申请人： Otto Immel ,  Hans-Helmut Schwarz ,  Hein Quast

    发明人： Otto Immel ,  Hans-Helmut Schwarz ,  Hein Quast

    IPC分类号： C07C47/19 ,  B01J23/00 ,  B01J27/00 ,  B01J31/00 ,  C07B61/00 ,  C07C45/00 ,  C07C45/75 ,  C07C67/00

    CPC分类号： C07C45/75

    摘要： A process for the preparation of 2,2-dimethylolalkanals is disclosed wherein formaldehyde is reacted with an aldehyde of the formulaRCH.sub.2 CHO (I)whereinR denotes a straight-chain or branched alkyl radical with up to 12 carbon atoms where the radical can be substituted by an alkyl or alkoxy group with 1 to 3 carbon atoms in each case wherein the molar ratio of aldehyde of formula I to formaldehyde is 1:8 to 20, the reaction being carried out at a temperature in the range of 5.degree. to 100.degree. C. in the presence of 0.01 to 0.5 mol (per mol of aldehyde of formula (I)) of a catalyst consisting essentially of a hydroxide or carbonate of an alkali metal or alkaline earth metal or an unbranched tertiary aliphatic amine.

    摘要翻译： 公开了制备2,2-二羟甲基链烷醇的方法，其中甲醛与式RCH 2 CHO（I）的醛反应，其中R表示直链或支链烷基，具有至多12个碳原子，其中该基团可被取代 在其中式I的醛与甲醛的摩尔比为1:8至20的情况下，通过具有1至3个碳原子的烷基或烷氧基，反应在5至100℃的温度下进行 在0.01至0.5mol（每摩尔式（I）的醛）存在下，基本上由碱金属或碱土金属的氢氧化物或碳酸盐或未分支的叔脂族胺组成的催化剂存在。

    Catalyst regeneration of boric acid on carbon catalysts
    9.
    发明授权
    Catalyst regeneration of boric acid on carbon catalysts 失效
    硼酸在碳催化剂上的催化剂再生

    公开(公告)号：US4155876A

    公开(公告)日：1979-05-22

    申请号：US831936

    申请日：1977-09-09

    申请人： Harry Danziger ,  Otto Immel ,  Bernd-Ulrich Kaiser ,  Hans-Helmut Schwarz ,  Klaus Starke

    发明人： Harry Danziger ,  Otto Immel ,  Bernd-Ulrich Kaiser ,  Hans-Helmut Schwarz ,  Klaus Starke

    IPC分类号： C07D223/10 ,  B01J21/20 ,  B01J38/30 ,  C07D201/04

    CPC分类号： C07D201/04 ,  B01J21/20 ,  Y02P20/584

    摘要： A process for the regeneration of a granular, supported catalyst of boric acid on carbon, wherein a part of the catalyst is removed from a fluidized bed reactor, in which cyclohexanone oxime is rearranged into caprolactam on this catalyst, when the "differential content in the catalyst of organic nitrogen" is between 0.3 and 2.0% by weight and is replaced by an equal amount of regenerated catalyst so that the differential organic nitrogen content remains in the above-mentioned range, the quantity of catalyst removed is regenerated with air in a fluidized bed at a temperature of from 400.degree. to 700.degree. C. and is returned to the fluidized bed reactor used for rearrangement when a further part of the catalyst is removed therefrom for regeneration.

    摘要翻译： 一种用于再生颗粒状载体上的硼酸催化剂的方法，其中将一部分催化剂从流化床反应器中除去，其中环己酮肟在该催化剂上重排为己内酰胺，当“ 有机氮的催化剂“为0.3-2.0重量％，并由等量的再生催化剂代替，使得差示有机氮含量保持在上述范围内，除去的催化剂的量在流化床中用空气再生 在400〜700℃的温度下进行洗涤，并且当将另一部分催化剂从其中除去再生时，返回到用于重排的流化床反应器。