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14 条记录 (耗时 0.02 秒)

    Production of adipic acid from acidic wash waters
    1.
    发明授权
    Production of adipic acid from acidic wash waters 失效
    从酸性洗涤水中生产己二酸

    公开(公告)号：US4227021A

    公开(公告)日：1980-10-07

    申请号：US901235

    申请日：1978-04-28

    申请人： Otto-Alfred Grosskinsky ,  Norbert Petri ,  Johannes Hein ,  Hans Leitner

    发明人： Otto-Alfred Grosskinsky ,  Norbert Petri ,  Johannes Hein ,  Hans Leitner

    IPC分类号： C07C55/14 ,  C07C51/00 ,  C07C51/42 ,  C07C51/487 ,  C07C67/00 ,  C07C51/24

    CPC分类号： C07C51/487

    摘要： An improved process for producing adipic acid from the acidic wash waters which arise in the process for oxidizing cyclohexane with air, by treatment with nitric acid at from 10.degree. to 50.degree. C., with removal of the heat of reaction by external cooling, wherein the reaction mixture is led, at a flow velocity of at least 2.0 m/sec, as a thin layer spirally in counter-current to the coolant, under conditions which do not perturb the flow of the reaction mixture.

    摘要翻译： 通过在10℃至50℃下用硝酸处理，通过外部冷却除去反应热而在由空气氧化环己烷的过程中产生的酸性洗涤水中生产己二酸的改进方法，其中 在不干扰反应混合物的流动的条件下，反应混合物以至少2.0m / sec的流速被引导为与冷却剂逆流螺旋形的薄层。

    Preparation of hydroxylammonium salts
    2.
    发明授权
    Preparation of hydroxylammonium salts 失效
    羟基铵盐的制备

    公开(公告)号：US4404176A

    公开(公告)日：1983-09-13

    申请号：US344615

    申请日：1982-02-01

    申请人： Otto-Alfred Grosskinsky ,  Elmar Frommer ,  Gunther Rapp, deceased ,  Erwin Thomas

    发明人： Otto-Alfred Grosskinsky ,  Elmar Frommer ,  Gunther Rapp, deceased ,  Erwin Thomas

    IPC分类号： C01B21/14

    CPC分类号： C01B21/1418

    摘要： A process for the preparation of hydroxylammonium salts by catalytic reduction of nitric oxide with hydrogen in a dilute aqueous solution of a mineral acid, in the presence of a suspended supported platinum catalyst, at elevated temperatures, wherein the reaction is carried out in a conventional manner, in one or more reaction zones, under superatmospheric pressure, and the exit gases produced are let down to a lower pressure, and are reacted, in a downstream reaction zone, with the reaction mixture, containing hydroxylammonium salt, the ammonium salt, the supported platinum catalyst and residual mineral acid, from the upstream reaction zone or zones, or with a fresh aqueous solution of the mineral acid, which contains the supported platinum catalyst in suspension.

    摘要翻译： 在悬浮的负载型铂催化剂的存在下，在升高的温度下，通过在无机酸的稀的水溶液中用氢气将一氧化氮催化还原，制备羟基铵盐的方法，其中反应以常规方式进行 在一个或多个反应区域中，在超大气压下，将所产生的出口气体降低至较低压力，并在下游反应区域与反应混合物反应，该反应混合物含有羟基铵盐，铵盐，负载的 铂催化剂和残余无机酸，来自上游反应区或区域，或与无机酸的新鲜水溶液混合，其中含有负载的铂催化剂悬浮液。

    Continuous preparation of .epsilon.-caprolactam by Beckmann rearrangement
    6.
    发明授权
    Continuous preparation of .epsilon.-caprolactam by Beckmann rearrangement 失效
    通过贝克曼重排连续制备ε-己内酰胺

    公开(公告)号：US4257950A

    公开(公告)日：1981-03-24

    申请号：US79329

    申请日：1979-09-27

    申请人： Peter Horn ,  Otto-Alfred Grosskinsky ,  Richard Thoma ,  Hugo Fuchs

    发明人： Peter Horn ,  Otto-Alfred Grosskinsky ,  Richard Thoma ,  Hugo Fuchs

    IPC分类号： C07D201/04

    CPC分类号： C07D201/04

    摘要： A process for the continuous preparation of .epsilon.-caprolactam by Beckmann rearrangement of cyclohexanone-oxime, dissolved in a solvent which is inert toward oleum and is immiscible with oleum and water, at an elevated temperature, with removal of the heat of rearrangement by evaporation of the solvent, wherein oleum containing caprolactam is circulated successively through a conveying zone, a mixing zone, a boiling zone and a separating zone, upstream of the conveying zone oleum is added at the rate at which it is consumed, in the mixing zone cyclohexanone-oxime dissolved in solvent is added under turbulent conditions, in the boiling zone the heat of rearrangement is removed in a conventional manner by evaporating the solvent and recycling the condensate, and in the separating zone the reaction mixture is separated into a solvent phase, from which solvent is withdrawn at the rate at which the phase is formed, and a caprolactam-containing oleum phase, which is removed at the rate at which it is formed.

    摘要翻译： 通过贝克曼重排环己酮 - 肟连续制备ε-己内酰胺的方法，该方法在升高的温度下溶解在对发烟硫酸是惰性的且与发烟硫酸和水不混溶的溶剂中，通过蒸发除去重排热 将其中含有发烟硫酸的己内酰胺在输送区上游的输送区，混合区，沸点区和分离区连续循环的溶剂以其消耗的速率在混合区中加入环己酮 - 在湍流条件下加入溶解在溶剂中的肟，在沸腾区中，以常规方式通过蒸发溶剂并再循环冷凝物来除去重排热，并且在分离区中将反应混合物分离成溶剂相，从其中 溶剂以形成相的速率被抽出，含己内酰胺的发烟硫酸相以 它是形成的。