Process for the purification of aromatic polyamines
    1.
    发明授权
    Process for the purification of aromatic polyamines 失效
    芳族多胺纯化方法

    公开(公告)号:US06547933B2

    公开(公告)日:2003-04-15

    申请号:US10116251

    申请日:2002-04-04

    IPC分类号: B01D100

    摘要: A process for the purification of a mixture of aromatic polyamines obtained by hydrogenation of the corresponding aromatic polynitro compounds, said mixture including the various isomers of the said amines as well as reaction by-products, including the steps of carrying out a distillation of the mixture in a distillation column, wherein a first stream, corresponding to a fraction or to all of the stream recovered at the bottom of the distillation column, is separated and is used in a chemical reaction and a second stream is separated corresponding (i) to a stream drawn off from the side in the gas phase, in the lower third of the said column, this stream representing at most 20% or more than 80% of the total volume (first and second stream); or (ii) to a fraction of the first stream, this fraction representing 2 to 50% of the volume of the first stream; in order to treat it subsequently.

    摘要翻译: 一种纯化通过相应的芳族多硝基化合物氢化获得的芳族多胺的混合物的方法,所述混合物包括所述胺的各种异构体以及反应副产物,包括进行混合物蒸馏的步骤 在蒸馏塔中,其中对应于在蒸馏塔底部回收的馏分或全部流的第一物流被分离并且用于化学反应中,并且将第二物流分离成相应于(i)至 在气相的一侧,在所述塔的下三分之一处流出的物流,该物流占总体积的至多20%或大于80%(第一和第二流); 或(ii)至第一料流的一部分,该馏分代表第一料流体积的2至50%; 以便随后对待。

    PROCESS FOR PRODUCING COMPOUNDS COMPRISING NITRILE FUNCTIONS
    3.
    发明申请
    PROCESS FOR PRODUCING COMPOUNDS COMPRISING NITRILE FUNCTIONS 有权
    生产包含NITRILE功能的化合物的方法

    公开(公告)号:US20140171663A1

    公开(公告)日:2014-06-19

    申请号:US14131453

    申请日:2012-07-05

    IPC分类号: C07D307/68 C07D307/24

    摘要: The present invention relates to the production of compounds comprising nitrile functions and of cyclic imide compounds. It relates more particularly to the production of compounds comprising nitrile functions from compounds comprising carboxylic functions, advantageously of natural and renewable origin, and from 2-methylglutaronitrile (MGN) or a mixture N of dinitriles comprising 2-methylglutaronitrile (MGN), 2-ethylsuccinonitrile (ESN) and adiponitrile (AdN).

    摘要翻译: 本发明涉及生产包含腈官能团和环状酰亚胺化合物的化合物。 本发明更具体地涉及包含腈功能的化合物的化合物的生产,所述化合物包含有机天然和可再生的羧基官能团,以及2-甲基戊二腈(MGN)或包含2-甲基戊二腈(MGN),2-乙基琥珀腈 (ESN)和己二腈(AdN)。

    METHOD FOR MANUFACTURING COMPOUNDS INCLUDING NITRILE FUNCTIONS
    6.
    发明申请
    METHOD FOR MANUFACTURING COMPOUNDS INCLUDING NITRILE FUNCTIONS 有权
    包括NITRILE功能的化合物的制备方法

    公开(公告)号:US20110288324A1

    公开(公告)日:2011-11-24

    申请号:US13132964

    申请日:2009-11-26

    IPC分类号: C07C253/06

    CPC分类号: C07C253/20 C07C255/04

    摘要: A process for the preparation of compounds containing nitrile functions and, more specifically, compounds containing two nitrile functions, such as succinonitrile and adiponitrile, is described. A process for preparing dintrile compounds obtained by reacting ammonia with an aqueous solution of a dicarboxyl compound in the presence of a silicon orthophosphate catalyst is also described.

    摘要翻译: 描述了制备含腈功能的化合物的方法,更具体地说,涉及含有两个腈官能团的化合物,例如丁二腈和己二腈。 还描述了在正磷酸正硅酸盐催化剂存在下,通过使氨与二羧酸化合物的水溶液反应而得到的复合化合物的制备方法。

    Process for the preparation of fluoroanilines from fluorinated nitrated
benzene compounds
    9.
    发明授权
    Process for the preparation of fluoroanilines from fluorinated nitrated benzene compounds 失效
    由氟化硝化苯化合物制备氟苯胺的方法

    公开(公告)号:US5856577A

    公开(公告)日:1999-01-05

    申请号:US849144

    申请日:1997-05-28

    CPC分类号: C07C209/36

    摘要: The instant invention relates to a process for the preparation of fluoroanilines of formula (I) wherein a fluorinated nitrated benzene compound of formula (II) is subjected to a catalytic hydrogenation in a liquid medium containing a catalyst, under hydrogen pressure, carrying out a catalytic reduction reaction and, optionally, a hydrogenolysis reaction, wherein the compound of formula (II) is introduced gradually into the said medium so that the content of compound of formula (II) in the liquid remains less than or equal to 1000 ppm by mass, in order selectively to form the compound of formula (I).

    摘要翻译: PCT No.PCT / FR95 / 01575 Sec。 371日期1997年5月28日 102(e)日期1997年5月28日PCT提交1995年11月29日PCT公布。 公开号WO96 / 16926 日本1996年6月6日本发明涉及制备式(I)的氟代苯胺的方法,其中将式(II)的氟化硝化苯化合物在氢气压力下在含有催化剂的液体介质中进行催化氢化 ,进行催化还原反应和任选的氢解反应,其中将式(II)化合物逐渐引入所述介质中,使得液体中式(II)化合物的含量保持小于或等于 为了选择性地形成式(I)的化合物,为1000质量ppm。

    Treatment/removal of byproduct aqueous effluents comprising
hydroxynitro-aromatic compounds
    10.
    发明授权
    Treatment/removal of byproduct aqueous effluents comprising hydroxynitro-aromatic compounds 失效
    包含羟基硝基芳族化合物的副产物含水废水的处理/除去

    公开(公告)号:US5820764A

    公开(公告)日:1998-10-13

    申请号:US959731

    申请日:1997-10-28

    摘要: Objectionable byproduct aqueous effluents containing contaminating amounts of hydroxynitroaromatic compounds, in particular those aqueous effluents produced during the synthesis of nitroaromatic compounds, e.g., dinitrotoluenes, via reaction of an aromatic compound with nitric acid in the presence of sulfuric acid, are efficiently, facilely and economically treated/removed by (a) intimately contacting a mixture of at least one nitroaromatic compound and at least one hydroxynitroaromatic compound with an aqueous wash medium containing a neutralizing agent, (b) separating the resulting admixture into an organic phase and an aqueous phase, (c) recycling a fraction of the separated aqueous phase to the aqueous wash medium to thus constitute a portion thereof, and (d) periodically draining a fraction of the wash medium, whether to destruction thereof or to waste.

    摘要翻译: 含有污染量的羟基硝基芳族化合物的有害副产物含水废水,特别是在硫酸存在下通过芳族化合物与硝酸的反应合成硝基芳族化合物(例如二硝基甲苯)期间产生的含水废水,是有效,便利和经济的 通过(a)使至少一种硝基芳族化合物和至少一种羟基硝基芳族化合物的混合物与含有中和剂的水性洗涤介质紧密接触来处理/除去,(b)将所得混合物分离成有机相和水相( c)将分离的水相的一部分循环到水性洗涤介质中,从而构成其一部分,和(d)定期排出洗涤介质的一部分,不管其是否破坏或浪费。