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    Manufacture of adiponitrile
    1.
    发明授权
    Manufacture of adiponitrile 失效
    ADIPONITRILE制造

    公开(公告)号：US3671566A

    公开(公告)日：1972-06-20

    申请号：US3671566D

    申请日：1970-03-30

    Applicant: BASF AG

    Inventor： DECKER MARTIN ,  SCHMIDT JOSEPH ,  HOFFMANN HERWIG ,  PISTOR HANS JOACHIM

    IPC: C07C20060101 ,  C07C121/10

    CPC classification number: C07C255/00

    Abstract: Production of adiponitrile by introducing adipic acid in solid powder form or in liquid form and simultaneously introducing ammonia into a fluidized bed of a usual catalyst at a temperature of from 250* to 420*C and recovering the adiponitrile from the reaction gases by fractional distillation wherein there is added to the reaction gas before entry into the distillation column sufficient water to make the molar ratio of water vapor to ammonia 0.8 to 1.5 in the mixture entering the column. Adiponitrile is an intermediate in the manufacture of synthetic fibers of, for example, nylon 6.6.

    Abstract translation: 通过以固体粉末形式或液体形式引入己二酸生产己二腈，同时在250-420℃的温度下将氨引入常规催化剂的流化床中，并通过分馏从反应气中回收己二腈，其中 在进入蒸馏塔之前，将反应气体加入到足够的水中以使进入塔的混合物中水蒸气与氨的摩尔比为0.8至1.5。 己二腈是制造例如尼龙6.6的合成纤维的中间体。

    Production of aniline
    2.
    发明专利
    Production of aniline 未知

    公开(公告)号：GB913444A

    公开(公告)日：1962-12-19

    申请号：GB146761

    申请日：1961-01-13

    Applicant: BASF AG

    Inventor： SPERBER HEINRICH ,  POEHLER GUENTER ,  PISTOR HANS JOACHIM ,  WEGERICH ANTON

    IPC: C07C209/36

    Abstract: In a process for the production of aniline, or an amine of an alkyl benzene, by the hydrogenation of nitrobenzene, or an alkylated nitrobenzene e.g. nitrotoluene or nitroxylene, using a metal hydrogenation catalyst in a fluidised layer, preferably provided with cooling means, the nitrobenzene is introduced into the layer at least partly in liquid phase at a plurality of points at least some of which are at different heights. The hydrogen and nitrobenzene are introduced into the reaction zone in a molar ratio of at least 3 : 1. The reaction is preferably carried out at a pressure of 4-25 atmospheres at temperatures between 200 and 400 DEG C. The hydrogen may be introduced with the nitrobenzene e.g. by using a two-component nozzle, or at the bottom of the reaction vessel. The points of introduction of the nitrobenzene are preferably distributed over the lower three-quarters of the fluidised catalyst layer. When a reactor of large crosssectional area is used, several inlets may be provided at the same level. In examples, the hydrogenation is carried out at 275 DEG C. and at 300 DEG C. at 10 atm. using a Cu on alumina catalyst and at 280-290 DEG C. at 5 atm. using Cu with traces of Cr, Ba, and Zn on silicic acid as catalyst. An Ni/Mo catalyst may also be used.

    Production of adiponitrile
    3.
    发明专利
    Production of adiponitrile 未知

    公开(公告)号：GB1036145A

    公开(公告)日：1966-07-13

    申请号：GB1878863

    申请日：1963-05-13

    Applicant: BASF AG

    Inventor： DECKER MARTIN ,  SCHMIDT JOSEPH ,  PISTOR HANS JOACHIM ,  SCHOLZ HEINRICH

    Abstract: Adiponitrile is produced by entraining solid free-flowing adipic acid in a current of ammonia and introducing the mixture, at a temperature of below 50 DEG C., into a fluidized bed of a dehydration catalyst at 250-550 DEG C., the bed being fluidized by ammonia, and the total molar ratio of ammonia to adipic acid being at least 2: 1. Variations of the procedure are described. Suitable catalysts are silica gel, boron phosphate and catalysts containing phosphoric acid, and which may be activated by small amounts of alkali metal oxides.

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