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    Process for the manufacture of a dehalogenation catalyst
    1.
    发明授权
    Process for the manufacture of a dehalogenation catalyst 失效
    脱乙酸催化剂的制备方法

    公开(公告)号：US3864281A

    公开(公告)日：1975-02-04

    申请号：US38775573

    申请日：1973-08-13

    Applicant: HOECHST AG

    Inventor： OHORODNIK ALEXANDER ,  GEHRMANN KLAUS ,  HUNDECK JOACHIM ,  VIERLING HERMANN

    IPC: C07C53/16 ,  B01J23/44 ,  B01J35/10 ,  B01J37/02 ,  C07C51/00 ,  C07C51/377 ,  C07C67/00 ,  B01J11/08

    CPC classification number: C07C51/377 ,  B01J21/08 ,  B01J23/44 ,  B01J35/0053 ,  B01J35/1019 ,  B01J35/1047 ,  B01J35/108 ,  C07C53/16

    Abstract: Production of a catalyst comprised of a fine-particulate carrier and palladium metal for the partial dehalogenation of di- and/or trichloracetic acids in the presence of hydrogen to produce monochloracetic acid, wherein the dry porous carrier is impregnated with a palladium salt solution and the palladium absorbed by the carrier is reduced to palladium metal with the use of a suitable reducing agent. More particularly the palladium metal is concentrated exclusively on the surface of the carrier by impregnating and partially saturating the dry, fineparticulate carrier with the pure palladium salt solvent; by continuing impregnation until complete saturation of the carrier so pretreated with the necessary quantity of palladium salt solution; and by reducing the palladium salt applied to the carrier to palladium in known manner.

    Abstract translation: 生产由细颗粒载体和钯金属组成的催化剂，用于在氢气存在下二 - 和/或三氯乙酸的部分脱卤反应产生一氯乙酸，其中干燥多孔载体用钯盐溶液浸渍， 使用合适的还原剂将载体吸收的钯还原成钯金属。 更具体地，钯金属仅通过用纯钯盐溶剂浸渍并部分饱和干燥的细颗粒载体而集中在载体的表面上; 通过持续浸渍直到载体完全饱和，由此用必要量的钯盐溶液预处理; 并以已知的方式将作用于载体的钯盐还原成钯。

    Apparatus for the continuous carrying out heterogeneous catalytic reaction in liquid phase
    2.
    发明授权
    Apparatus for the continuous carrying out heterogeneous catalytic reaction in liquid phase 失效
    连续在液相中进行异构催化反应的装置

    公开(公告)号：US3901660A

    公开(公告)日：1975-08-26

    申请号：US41139073

    申请日：1973-10-31

    Applicant: HOECHST AG

    Inventor： OHORODNIK ALEXANDER ,  SENNEWALD KURT ,  HUNDECK JOACHIM ,  STUTZKE PAUL

    IPC: B01J8/00 ,  B01J8/18 ,  B01J8/22 ,  C07C51/377 ,  C07C53/16

    CPC classification number: B01J8/228 ,  B01J8/006 ,  B01J8/1836 ,  B01J2208/00176 ,  C07C51/377 ,  C07C53/16

    Abstract: Heterogeneous catalytic reactions are carried out continuously in liquid phase. A substantially uniform suspension of liquid starting material and fine particulate catalyst together with resulting reaction product is continuously conveyed upwardly in a reaction zone by the introduction, in accordance with the principle of an airlift pump, of a gas or vaporous material near the bottom of the reaction zone, and recycled downwardly through a reflux line to the bottom of the reaction zone. The path of liquid material through the reflux line is interrupted by an injector system situated in a closed catalyst-separating zone containing reaction product. Following establishment of the reaction equilibrium, starting material is continuously supplied near the bottom of the reaction zone and crude but catalyst-free reaction product continuously removed near the head of the catalyst-separating zone. Reaction product which is to be removed is caused to travel through the catalyst-separating zone with the injector system therein towards the reaction product outlet at a velocity smaller than the sedimentation velocity of the catalyst under the prevailing operational conditions.

    PROCESS FOR MAKING 1,2-DICHLOROETHANE
    7.
    发明专利
    PROCESS FOR MAKING 1,2-DICHLOROETHANE 未知

    公开(公告)号：CA1221708A

    公开(公告)日：1987-05-12

    申请号：CA414663

    申请日：1982-11-02

    Applicant: HOECHST AG

    Inventor： HUNDECK JOACHIM ,  HENNEN HANS

    IPC: B01J27/00 ,  B01J27/128 ,  C07B61/00 ,  C07C17/00 ,  C07C17/02 ,  C07C19/045 ,  C07C67/00

    Abstract: PROCESS FOR MAKING 1,2-DICHLOROETHANE The disclosure relates to a process for making 1,2-di-chloroethane by reacting ethylene and chlorine in a reaction zone at a temperature of about 75 to 200.degree.C, under a pressure of about 1 to 15 bars and over a mean period of time of about 1 to 15 hours; the reaction zone has a liquid medium containing chlorinated C2-hydrocarbons circulated therein and contains a chlorination-inducing catalyst. More particularly, the 1,2-dichloroethane is produced inside a double loop reactor.

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