硝基芳族化合物的生产方法

    公开(公告)号:CN1121067A

    公开(公告)日:1996-04-24

    申请号:CN95109293.6

    申请日:1995-08-11

    Applicant: 拜尔公司

    CPC classification number: C07C201/08 C07C205/06

    Abstract: 硝基芳族化合物可通过使芳族化合物与硝化酸连续反应来生产。反应混合物被分离成可从中回收所需的硝基芳族化合物的有机相和酸相。酸相经闪蒸除去存在于其中的至少5%(重量)的水。闪蒸过程中产生的蒸汽被引入冷却剂的喷射雾中冷凝得到由冷却剂、冷凝的蒸汽和悬浮的有机化合物组成的冷凝物。部分冷凝物经相分离除去其中的水和有机化合物,水和有机化合物可重复使用。本发明方法的特别优越之处在于不会产生阻塞管道和干扰传热的沉积物。

    NITRATION OF AROMATIC COMPOUNDS
    327.
    发明申请
    NITRATION OF AROMATIC COMPOUNDS 审中-公开
    芳香化合物的硝化

    公开(公告)号:WO2016118450A1

    公开(公告)日:2016-07-28

    申请号:PCT/US2016/013795

    申请日:2016-01-18

    Abstract: The present invention provides a process for nitrating aromatic compounds without the need for a solid catalyst and/or any organic solvents and/or any other additives. A typical process includes combining or admixing a nitric acid and an anhydride compound under conditions sufficient to produce a reactive intermediate. The aromatic compound to be nitrated is then added to this reactive intermediate to produce a nitroaromatic compound. The nitroaromatic compound can be substituted with one or more, typically, one to three, and often one or two nitrate (-NO 2 ) groups.

    Abstract translation: 本发明提供一种硝化芳族化合物而不需要固体催化剂和/或任何有机溶剂和/或任何其它添加剂的方法。 典型的方法包括在足以产生反应性中间体的条件下混合或混合硝酸和酸酐化合物。 然后将待硝化的芳族化合物加入到该反应性中间体中以产生硝基芳族化合物。 硝基芳族化合物可以被一个或多个,通常为1-3个,通常为一个或两个硝酸根(-NO 2)基团取代。

    PROCESS FOR THE PREPARATION OF HALO-SUBSTITUTED TRIFLUOROACETOPHENONES
    328.
    发明申请
    PROCESS FOR THE PREPARATION OF HALO-SUBSTITUTED TRIFLUOROACETOPHENONES 审中-公开
    制备HALO取代的三氟乙烯的方法

    公开(公告)号:WO2016058882A1

    公开(公告)日:2016-04-21

    申请号:PCT/EP2015/073119

    申请日:2015-10-07

    Inventor: GRIBKOV, Denis

    Abstract: The invention relates to a process for the preparation of a compound of formula I (I), wherein R 1 is hydrogen, fluoro or chloro; which process comprises a) reacting a compound of formula II (II), wherein R 1 is hydrogen, fluoro or chloro; with a nitration agent to the compound of formula (III), wherein R 1 is hydrogen, fluoro or chloro; and b) reacting the compound of formula III with chlorine gas at temperature from 180°C to 250°C to the compound of formula I.

    Abstract translation: 本发明涉及制备式I(I)化合物的方法,其中R 1是氢,氟或氯; 该方法包括a)使式II(II)的化合物,其中R 1是氢,氟或氯; 与式(III)化合物的硝化剂反应,其中R 1是氢,氟或氯; 和b)使式III化合物与氯气在180℃至250℃的温度下反应至式I化合物。

    METHOD FOR CO-PRODUCTION OF ADIPIC ACID AND NITROCYCLOHEXANE
    329.
    发明申请
    METHOD FOR CO-PRODUCTION OF ADIPIC ACID AND NITROCYCLOHEXANE 审中-公开
    共生产丙二酸和硝基环己烷的方法

    公开(公告)号:WO2014202031A8

    公开(公告)日:2016-03-31

    申请号:PCT/CN2014081818

    申请日:2014-07-08

    Applicant: UNIV XIANGTAN

    Abstract: The present invention relates to a method for high-selectivity co-production of adipic acid and nitrocyclohexane, utilizing an oxynitride NOx as an oxidant and nitrating agent to transform in one step with high selectivity cyclohexane to adipic acid and nitrocyclohexane, and, by means of adjusting such conditions of the transformation as the proportions of reactants, the temperature and pressure of the reaction, and the type and quantity of catalyst or inducer, achieving controllability of the proportions of adipic acid and nitrocyclohexane produced. The NO produced by the reaction can be recycled and again reacted with oxygen to produce NOx for cyclical reuse.

    Abstract translation: 本发明涉及一种利用氮氧化合物氮氧化物作为氧化剂和硝化剂,以高选择性的环己烷至己二酸和硝基环己烷的一步高效转化己二酸和硝基环己烷的高选择性共生产方法, 根据反应物的比例,反应的温度和压力以及催化剂或诱导剂的类型和数量调节转化条件,实现己二酸和硝基环己烷比例的可控制。 通过反应产生的NO可以再循环并再次与氧反应以产生用于循环再利用的NOx。

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