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    PROCESS FOR THE CONTINUOUS PREPARATION OF NITROBENZENE
    31.
    发明申请
    PROCESS FOR THE CONTINUOUS PREPARATION OF NITROBENZENE 有权
    连续制备硝基苯的方法

    公开(公告)号：US20110196177A1

    公开(公告)日：2011-08-11

    申请号：US13019350

    申请日：2011-02-02

    Applicant: Jürgen MÜNNIG ,  Bernd PENNEMANN ,  Andreas Karl RAUSCH

    Inventor： Jürgen MÜNNIG ,  Bernd PENNEMANN ,  Andreas Karl RAUSCH

    IPC: C07C201/08

    CPC classification number: C07C201/08 ,  C07C205/06

    Abstract: Nitrobenzene is continuously produced by nitration of benzene with mixed acid under adiabatic conditions. In this process, the pressure upstream of the nitration reactor is from 14 bar to 40 bar above the pressure in the gas phase of the phase separation apparatus used to separate crude nitrobenzene and waste acid.

    Abstract translation: 通过在绝热条件下用混合酸硝化苯来连续生产硝基苯。 在该过程中，硝化反应器上游的压力比用于分离粗硝基苯和废酸的相分离装置的气相压力高14巴至40巴。

    Process for preparing high purity TNT
    32.
    发明授权
    Process for preparing high purity TNT 有权
    制备高纯度TNT的方法

    公开(公告)号：US07767868B2

    公开(公告)日：2010-08-03

    申请号：US10553825

    申请日：2004-04-21

    Applicant: Keith S. Kyler ,  Andrew R. Wilson ,  Curtis Teague

    Inventor： Keith S. Kyler ,  Andrew R. Wilson ,  Curtis Teague

    IPC: C07C205/00

    CPC classification number: C07C201/08 ,  C07C205/06

    Abstract: A process for preparing trinitrotoluene (TNT) in which toluene is treated with nitric acid having a concentration of about 90% to about 99%, and preferably about 98% to about 99%, by weight at a temperature of less than about 60° C., and preferably less than 30° C., to produce high purity dinitrotoluene. The resulting dinitrotoluene is then treated with nitric acid having a concentration of about 98% to about 99% by weight and trifluoromethane sulfuric acid to produce high purity TNT.

    Abstract translation: 制备三硝基甲苯（TNT）的方法，其中甲苯用小于约60℃的温度浓度为约90％至约99％，优选约98％至约99％的浓度的硝酸处理 优选小于30℃，以产生高纯度二硝基甲苯。 然后用浓度为约98％至约99％重量的硝酸和三氟甲烷硫酸处理所得的二硝基甲苯以产生高纯度TNT。

    METHOD FOR PREPARING DINITROTOLUENE
    33.
    发明申请
    METHOD FOR PREPARING DINITROTOLUENE 有权
    制备DINTROOLENEN的方法

    公开(公告)号：US20100145109A1

    公开(公告)日：2010-06-10

    申请号：US12668466

    申请日：2008-07-08

    Applicant: Philippe Marion

    Inventor： Philippe Marion

    IPC: C07C205/06 ,  B01J19/00

    CPC classification number: B01D17/0217 ,  B01D17/0208 ,  C07C201/08 ,  Y02P20/582 ,  C07C205/06

    Abstract: The present invention relates to a process for preparing dinitrotoluene. The process of the invention for preparing dinitrotoluene from mononitrotoluene, which comprises carrying out a mononitrotoluene nitration reaction using a nitrating mixture comprising nitric acid, sulphuric acid and water resulting in a two-phase medium and separating the organic and aqueous phases of said two-phase medium, is characterized in that the mononitrotoluene nitration is carried out using a nitrating mixture comprising at most 10% by weight of water resulting in a two-phase medium, in that the organic and aqueous phases of said two-phase medium are separated, and in that the aqueous phase derived from the separating operation is recycled, at the end of the mononitrotoluene nitration reaction and before the separation of the organic and aqueous phases, such that the weight ratio of the aqueous phase to the organic phase is at least equal to 1.2.

    Abstract translation: 本发明涉及一种制备二硝基甲苯的方法。 本发明从一硝基甲苯制备二硝基甲苯的方法，其包括使用包含硝酸，硫酸和水的硝化混合物进行一硝基甲苯硝化反应，得到两相介质并分离所述两相的有机相和水相 介质，其特征在于使用包含至多10重量％的水的硝化混合物进行一硝基甲苯硝化，得到两相介质，因为所述两相介质的有机相和水相分离，和 因为来自分离操作的水相在单硝基甲苯硝化反应结束时和有机相和水相分离之前再循环，使得水相与有机相的重量比至少等于 1.2。

    System and process for production of nitrobenzene
    34.
    发明授权
    System and process for production of nitrobenzene 失效
    制备硝基苯的制备方法

    公开(公告)号：US07696391B2

    公开(公告)日：2010-04-13

    申请号：US12138941

    申请日：2008-06-13

    Applicant: Abbas Hassan ,  Ebrahim Bagherzadeh ,  Rayford G. Anthony ,  Gregory Borsinger ,  Aziz Hassan

    Inventor： Abbas Hassan ,  Ebrahim Bagherzadeh ,  Rayford G. Anthony ,  Gregory Borsinger ,  Aziz Hassan

    IPC: C07C205/00

    CPC classification number: C07C201/08 ,  B01F7/00766 ,  B01F13/1013 ,  B01F13/1016 ,  C07C205/06

    Abstract: A method for producing nitrobenzene is disclosed which comprises forming a dispersion comprising benzene-containing droplets or particles dispersed in a mixture of concentrated nitric acid and concentrated sulfuric acid, wherein said particles have a mean diameter less than one micron, and subjecting the dispersion to reaction conditions comprising a pressure in the range of about 203 kPa (2 atm) to about 6080 kPa (60 atm) and a temperature in the range of about 20° C. to about 230° C., whereby at least a portion of said benzene is nitrated to form nitrobenzene. A system for carrying out the method is also disclosed.

    Abstract translation: 公开了一种制备硝基苯的方法，其包括形成包含分散在浓硝酸和浓硫酸的混合物中的含有苯的液滴或颗粒的分散体，其中所述颗粒的平均直径小于1微米，并使分散体反应 包括在约203kPa（2atm）至约6080kPa（60atm）范围内的压力和约20℃至约230℃范围内的温度的条件，由此至少一部分所述苯 被硝化形成硝基苯。 还公开了一种用于执行该方法的系统。

    Process for the production of dinitrotoluene
    35.
    发明授权
    Process for the production of dinitrotoluene 失效
    生产二硝基甲苯的方法

    公开(公告)号：US07495136B2

    公开(公告)日：2009-02-24

    申请号：US11827502

    申请日：2007-07-12

    Applicant: Fritz Pohl ,  Wolfgang Lorenz ,  Juergen Muennig ,  Bernd Pennemann ,  Gerhard Wiechers

    Inventor： Fritz Pohl ,  Wolfgang Lorenz ,  Juergen Muennig ,  Bernd Pennemann ,  Gerhard Wiechers

    IPC: C07C205/00

    CPC classification number: C07C201/08 ,  C07C205/06

    Abstract: Dinitrotoluene is produced by nitration of toluene with nitrating acid (mixture of nitric acid and sulfuric acid) in which, in a first stage, the toluene is converted to mononitrotoluene (MNT) and then the mononitrotoluene is converted in a second stage to dinitrotoluene (DNT). Control of the weight ratio of the aqueous to organic phases, dispersion of the organic phase in the aqueous phase and use of less than 2.06 moles of nitric acid per mole of toluene are key features of this process.

    Abstract translation: 二硝基甲苯通过用硝酸（硝酸和硫酸的混合物）硝化甲苯来制备，其中在第一阶段将甲苯转化为一硝基甲苯（MNT），然后将一硝基甲苯转化为二硝基甲苯（DNT ）。 控制水相与有机相的重量比，有机相在水相中的分散和每摩尔甲苯使用小于2.06摩尔硝酸是该方法的关键特征。

    Method for Producing Dinitrotoluene
    36.
    发明申请
    Method for Producing Dinitrotoluene 有权
    生产二硝基甲苯的方法

    公开(公告)号：US20080242900A1

    公开(公告)日：2008-10-02

    申请号：US10586683

    申请日：2005-02-02

    Applicant: Johannes Buttner ,  Wolfgang Mackenroth ,  Heinrich Hermann ,  Peter Konieczny ,  Jurgen Gebauer

    Inventor： Johannes Buttner ,  Wolfgang Mackenroth ,  Heinrich Hermann ,  Peter Konieczny ,  Jurgen Gebauer

    IPC: C07C205/06

    CPC classification number: C07C201/08 ,  C07C201/14 ,  C07C205/06

    Abstract: The invention relates to a method for producing dinitrotoluene, comprising the steps of a) reacting toluene with nitric acid in the presence of sulphuric acid to give mononitrotoluene, b) separating the reaction product of step a) into a mononitrotoluene-containing organic phase and a sulphuric acid-containing aqueous phase, c) reacting the mononitrotoluene-containing organic phase with nitric acid in the presence of sulphuric acid to give dinitrotoluene, d) separating the reaction product of step c) into a dinitrotoluene-containing organic phase and a sulphuric-acid containing aqueous phase, whereby the reaction product of step a) contains 3.0 to 8 wt % of toluene, in relation to the organic phase, and 0.1 to 1.2 wt. % of nitric acid, in relation to the aqueous phase and the phase separation of step b) is carried out in such a manner that further reaction of toluene with nitric acid is prevented.

    Abstract translation: 本发明涉及二硝基甲苯的制备方法，包括以下步骤：a）在硫酸存在下使甲苯与硝酸反应得到单硝基甲苯，b）将步骤a）的反应产物分离成含有单硝基甲苯的有机相和 含硫酸的水相，c）在硫酸存在下使含有单硝基甲苯的有机相与硝酸反应，得到二硝基甲苯，d）将步骤c）的反应产物分离成含有二硝基甲苯的有机相和含硫酸的有机相， 含有酸的水相，其中步骤a）的反应产物相对于有机相含有3.0-8wt％的甲苯，和0.1-1.2wt。 相对于水相和步骤b）的相分离，硝酸的百分比以防止甲苯与硝酸的进一步反应的方式进行。

    Method for making an energetic material
    38.
    发明授权
    Method for making an energetic material 失效
    制作精力充沛的材料的方法

    公开(公告)号：US07345208B2

    公开(公告)日：2008-03-18

    申请号：US11231142

    申请日：2005-09-19

    Applicant: Robert V. Fox

    Inventor： Robert V. Fox

    IPC: C07C205/06 ,  C06B25/08

    CPC classification number: C07C201/08 ,  Y02P20/544 ,  C07C205/06

    Abstract: A method for making trinitrotoluene is described, and which includes the steps of providing a source of aqueous nitric acid having a concentration of less than about 95% by weight; mixing a surfactant with the source of aqueous nitric acid so as to dehydrate the aqueous nitric acid to produce a source of nitronium ions; providing a supercritical carbon dioxide environment; providing a source of an organic material to be nitrated to the supercritical carbon dioxide environment; and controllably mixing the source or nitronium ions with the supercritical carbon dioxide environment to nitrate the organic material and produce trinitrotoluene.

    Abstract translation: 描述了制备三硝基甲苯的方法，其包括以下步骤：提供浓度小于约95重量％的硝酸水溶液源; 将表面活性剂与硝酸水溶液混合以使硝酸水溶液脱水以产生硝鎓离子源; 提供超临界二氧化碳环境; 提供要对超临界二氧化碳环境进行硝化的有机材料的来源; 并将可控地将源或硝鎓离子与超临界二氧化碳环境混合，使有机物硝酸化并产生三硝基甲苯。

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