METHOD FOR TREATING AQUEOUS SOLUTIONS COMPRISING ACIDS AND NITRATED COMPOUNDS
    152.
    发明申请
    METHOD FOR TREATING AQUEOUS SOLUTIONS COMPRISING ACIDS AND NITRATED COMPOUNDS 审中-公开
    用于处理包含酸和硝酸化合物的水溶液的方法

    公开(公告)号:WO99008995A1

    公开(公告)日:1999-02-25

    申请号:PCT/FR1998/001793

    申请日:1998-08-11

    Abstract: The invention concerns a method for treating an aqueous solution derived from sluicing of crude mononitrated or dinitrated aromatic compounds obtained by nitration of the corresponding aromatic compounds, consisting in: (a) contacting said aqueous solution with said aromatic compound thereby obtaining an aqueous phase and an organic phase; (b) recycling said organic phase in the nitration process; (c) distilling said aqueous phase; (d) recycling the resulting concentrated acid solution, in the nitration process; (e) recycling or eliminating the recuperated water after distillation.

    Abstract translation: 本发明涉及一种处理衍生自通过硝化相应芳族化合物得到的粗单硝化或二硝化芳族化合物的水溶液的方法,其包括:(a)使所述水溶液与所述芳族化合物接触,从而获得水相和 有机相; (b)在硝化过程中回收所述有机相; (c)蒸馏所述水相; (d)在硝化过程中回收所得浓酸溶液; (e)蒸馏后回收或除去回收的水。

    REDUCING TETRANITROMETHANE IN COMPOSITIONS CONTAINING NITROAROMATIC COMPOUNDS
    154.
    发明申请
    REDUCING TETRANITROMETHANE IN COMPOSITIONS CONTAINING NITROAROMATIC COMPOUNDS 审中-公开
    在含有硝基化合物的组合物中还原四唑酮

    公开(公告)号:WO1997038967A1

    公开(公告)日:1997-10-23

    申请号:PCT/US1997005769

    申请日:1997-04-07

    CPC classification number: C06B25/04 C06B21/0091 C07C201/16 C07C205/06

    Abstract: A process is disclosed for removing a light organic compound from a liquid composition comprising said light organic compound in admixture with a nitroaromatic compound, said light organic compound having a partial vapor pressure in said composition that is greater than the partial vapor pressure of said nitroaromatic compound in said composition, said process comprising contacting said composition with steam or a gas to cause at least a portion of said light organic compound to pass out of said composition and into admixture with said steam or gas.

    Abstract translation: 公开了一种从包含所述轻质有机化合物的液体组合物与硝基芳族化合物混合物中除去轻质有机化合物的方法,所述轻质有机化合物在所述组合物中的部分蒸汽压大于所述硝基芳族化合物的部分蒸汽压 在所述组合物中,所述方法包括使所述组合物与蒸汽或气体接触以使所述轻质有机化合物的至少一部分从所述组合物中排出并与所述蒸汽或气体混合。

    NITRATION OF AROMATIC COMPOUNDS
    156.
    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。

    PROCESSO E EQUIPAMENTO PARA REMOÇÃO DE IMPUREZAS DE COMPOSTOS AROMÁTICOS NITRADOS
    158.
    发明申请
    PROCESSO E EQUIPAMENTO PARA REMOÇÃO DE IMPUREZAS DE COMPOSTOS AROMÁTICOS NITRADOS 审中-公开
    从硝酸化的芳族化合物中除去污染物的方法和设备

    公开(公告)号:WO2014174499A1

    公开(公告)日:2014-10-30

    申请号:PCT/IB2014/061061

    申请日:2014-04-28

    CPC classification number: B01J14/00 C07C201/16 C07C205/06

    Abstract: A presente invenção diz respeito a um processo de extracção de ácidos minerais e ácidos orgânicos hidrofílicos de compostos aromáticos, nomeadamente nitroaromaticos, de preferência o Mononitrobenzeno Bruto (MNB), através de um processo de lavagem e refinamento destes. Esta invenção diz ainda respeito a um dispositivo/equipamento que compreende um conjunto de misturadores estáticos dispostos em série e/ou paralelo, seguidos de um separador líquido-líquido e seguido posteriormente por um coalescedor, e ainda, a reciclagem de parte da água ácida separada no coalescedor.

    Abstract translation: 本发明涉及通过纯化和精制这些化合物从芳族化合物,特别是硝基芳族化合物,优选粗制单硝基苯(MNB)中提取亲水性矿物和有机酸的方法。 本发明还涉及一种装置或设备,其包括串联和/或并联布置的静态混合器的组件,随后是液 - 液分离器,然后由聚结器,以及一部分酸水循环 在聚结器中分离。

    SEPARATION METHOD FOR DINITROTOLUENE AND MIXED ACID IN TOLUENE TO DINITROTOLUENE PROCESS
    159.
    发明申请
    SEPARATION METHOD FOR DINITROTOLUENE AND MIXED ACID IN TOLUENE TO DINITROTOLUENE PROCESS 审中-公开
    硝酸纤维素和混合酸在玻璃纤维中的分离方法

    公开(公告)号:WO2014094270A1

    公开(公告)日:2014-06-26

    申请号:PCT/CN2012/086999

    申请日:2012-12-20

    CPC classification number: C07C201/08 B01D17/0217 C07C201/16 C07C205/06

    Abstract: Proposed is a separation method in a toluene to dinitrotoluene process, wherein said method with a first process step comprising feeding a toluene comprising first stream (1) and a nitric acid comprising second stream (2) into a first reactor (R1), react- ing of the toluene comprising first stream (1) and the nitric acid comprising second stream (2) within the first reactor (R1) to a first reaction mixture (3), said first reaction mixture (3) comprising a first liquid/liquid mixed phase of an acid phase and an organic phase comprising mononitrotoluene, feeding the first reaction mixture (3) into a first separation device (S1), separating the first reaction mixture (3) within the first separa- tion device (S1) into a first forward stream (4) having a flow direction to a second process step and a first backward stream (5) having a flow direction back to the first reactor (R1), said method having a second process step comprising feeding the first forward stream (4) into a second reactor (R2), feeding a nitric acid comprising third stream (6) and a sulfuric acid comprising fourth stream (7) into the second reactor (R2), reacting of the first forward stream (4), the nitric acid comprising third stream (6) and the sulfuric acid comprising fourth stream (7) within the second reactor (R2) to a second reaction mix- ture (8), said second reaction mixture (8) comprising a second liquid/liquid mixed acid phase and an organic phase comprising mononitrotoluene and dinitrotoluene, feeding the second reaction mixture (8) into a second separation device (S2), separating the second reaction mixture (8) within the second separation device (S2) into a second forward stream (9) having a flow direction to a process output and a second backward stream (10) having a flow direction back to the first reactor (R1), wherein fine separating of at least one of the streams (4, 5, 9,10) after the first separa- tion step (S1) and/or the second separation step (S2) in a coalescer is carried out.

    Abstract translation: 提出的是在甲苯对二硝基甲苯方法中的分离方法,其中所述方法用第一方法步骤包括将包含第一物流(1)和包含第二物流(2)的硝酸的甲苯进料到第一反应器(R1)中, 将包含第一物流(1)的甲苯和在第一反应器(R1)内的包含第二物流(2)的硝酸)加入到第一反应混合物(3)中,所述第一反应混合物(3)包含第一液/液混合物 酸相的有机相和包含单硝基甲苯的有机相,将第一反应混合物(3)进料到第一分离装置(S1)中,将第一分离装置(S1)内的第一反应混合物(3)分离成第一分离装置 具有朝向第二处理步骤的流动方向的前向流(4)和具有返回到第一反应器(R1)的流动方向的第一后向流(5),所述方法具有第二处理步骤,包括将第一前进流 )进入第二反应器( 将含有第三料流(6)的硝酸和包含第四料流(7)的硫酸进料到第二反应器(R2)中,使第一正向料流(4),包含第三料流(6)的硝酸反应, 所述第二反应混合物(8)包含第二液/液混合酸相和包含单硝基甲苯的有机相,所述第二反应混合物(8)包含第二反应混合物(8) 和二硝基甲苯,将第二反应混合物(8)进料到第二分离装置(S2)中,将第二分离装置(S2)内的第二反应混合物(8)分离成具有流动方向的第二正向流(9) 过程输出和具有返回到第一反应器(R1)的流动方向的第二反向流(10),其中在第一分离步骤之后至少一个流(4,5和9,10)的精细分离( S1)和/或第二分离步骤(S2)。

    VERFAHREN ZUR HERSTELLUNG VON NITROBENZOL DURCH ADIABATE NITRIERUNG
    160.
    发明申请
    VERFAHREN ZUR HERSTELLUNG VON NITROBENZOL DURCH ADIABATE NITRIERUNG 审中-公开
    受理并绝热硝化PRODUCING硝基苯

    公开(公告)号:WO2014016292A1

    公开(公告)日:2014-01-30

    申请号:PCT/EP2013/065506

    申请日:2013-07-23

    CPC classification number: C07C201/08 C07C201/16 C07C205/06

    Abstract: Gegenstand der Erfindung ist ein kontinuierliches Verfahren zur Herstellung von Nitrobenzol durch Nitrierung von Benzol mit Mischungen aus Schwefel- und Salpetersäure unter Einsatz eines stöchiometrischen Überschusses an Benzol, bei dem der Gehalt an aliphatischen organischen Verbindungen im Einsatzbenzol während der Anfahrzeit der Produktionsanlage stets kleiner als 1,5 Massen-%, bezogen auf die Gesamtmasse des Einsatzbenzols, gehalten wird. Dies wird erreicht, indem entweder während der Anfahrzeit das Einsatzbenzol aus rezykliertem nicht umgesetzten Benzol (Rückbenzol) und der Reaktion neu zugeführtem Benzol (Frischbenzol), abhängig von der Reinheit beider Ströme, in entsprechenden Mengenverhältnissen gemischt wird, oder indem während der Anfahrzeit auf die Rezyklierung nicht umgesetzten Benzols komplett verzichtet wird, das Einsatzbenzol also nur aus der Reaktion neu zugeführtem Benzol besteht.

    Abstract translation: 本发明涉及一种连续工艺用于制备硝基苯的由苯的硝化使用化学计量过量的苯中,在其中在进料苯脂族有机化合物的生产设备的启动期间的含量总是小于1硫酸和硝酸的混合物, 基于进料苯的总质量保持在5质量%。 这是通过启动由回收未反应的苯(返回苯),将反应新供给的苯(新鲜苯)中,原料苯中实现的,这取决于两个流的纯度起动到再循环期间混合在适当的比率或由 未反应的苯被完全消除,所以使用苯的仅由反应新供给苯。

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