Process for scrubbing dinitrotoluene
    52.
    发明授权
    Process for scrubbing dinitrotoluene 有权
    洗涤二硝基甲苯的方法

    公开(公告)号:US09249083B2

    公开(公告)日:2016-02-02

    申请号:US13870506

    申请日:2013-04-25

    Applicant: BASF SE

    CPC classification number: C07C205/06 C07C201/06

    Abstract: The invention relates to a process for scrubbing a crude mixture comprising dinitrotoluene, nitric acid, nitrogen oxides and sulfuric acid obtained in the nitration of toluene after the nitrating acid has been separated off, which comprises two scrubbing steps (SS-I) and (SS-II), wherein i) in a first scrubbing step (SS-I), the crude mixture is extracted with a scrubbing acid I comprising nitric acid, nitrogen oxides and sulfuric acid in a scrub comprising at least one extraction stage, where the scrubbing acid discharged from the first extraction stage (SS-I-1) of the first scrubbing step (SS-I) has a total acid content of from 20 to 40% by weight and a prescrubbed crude mixture is obtained, ii) in a second scrubbing step (SS-II), the prescrubbed crude mixture comprising dinitrotoluene is extracted with a scrubbing acid II in a scrub comprising at least one extraction stage, where the scrubbing acid discharged from the first extraction stage (SS-II-1) of the second scrubbing step (SS-II) has a pH of less than or equal to 4 and a mixture comprising dinitrotoluene which is essentially free of nitric acid, sulfuric acid and nitrogen oxides is obtained.

    Abstract translation: 本发明涉及一种在分离出硝化酸后,除去包含二硝基甲苯,硝酸,氮氧化物和硫酸在硝化硝酸中得到的粗混合物的方法,该方法包括两个洗涤步骤(SS-I)和(SS -II),其中i)在第一洗涤步骤(SS-1)中,粗制混合物用包含硝酸,氮氧化物和硫酸的洗涤酸I在包含至少一个萃取阶段的洗涤中萃取,其中洗涤 从第一洗涤步骤(SS-I)的第一提取阶段(SS-I-1)排出的酸的总酸含量为20至40重量%,得到预混合的粗混合物,ii)在第二次 洗涤步骤(SS-II),包含二硝基甲苯的预先混合的粗混合物在洗涤中用擦洗酸II萃取,其包含至少一个提取阶段,其中从第一提取阶段(SS-II-1)排出的洗涤酸 第二洗涤步骤(SS- II)具有小于或等于4的pH,并且获得基本上不含硝酸,硫酸和氮氧化物的二硝基甲苯的混合物。

    Modular radiochemistry synthesis system
    53.
    发明授权
    Modular radiochemistry synthesis system 有权
    模块放射化学合成系统

    公开(公告)号:US09211520B2

    公开(公告)日:2015-12-15

    申请号:US14582885

    申请日:2014-12-24

    Abstract: A modular chemical production system includes multiple modules for performing a chemical reaction, particularly of radiochemical compounds, from a remote location. One embodiment comprises a reaction vessel including a moveable heat source with the position thereof relative to the reaction vessel being controllable from a remote position. Alternatively the heat source may be fixed in location and the reaction vial is moveable into and out of the heat source. The reaction vessel has one or more sealing plugs, the positioning of which in relationship to the reaction vessel is controllable from a remote position. Also the one or more reaction vessel sealing plugs can include one or more conduits there through for delivery of reactants, gases at atmospheric or an elevated pressure, inert gases, drawing a vacuum and removal of reaction end products to and from the reaction vial, the reaction vial with sealing plug in position being operable at elevated pressures. The modular chemical production system is assembled from modules which can each include operating condition sensors and controllers configured for monitoring and controlling the individual modules and the assembled system from a remote position. Other modules include, but are not limited to a Reagent Storage and Delivery Module, a Cartridge Purification Module, a Microwave Reaction Module, an External QC/Analysis/Purification Interface Module, an Aliquotting Module, an F-18 Drying Module, a Concentration Module, a Radiation Counting Module, and a Capillary Reactor Module.

    Abstract translation: 模块化化学生产系统包括从远程位置进行化学反应,特别是放射化学化合物的多个模块。 一个实施例包括一个包括可移动热源的反应容器,其相对于反应容器的位置可从远程位置控制。 或者,热源可以固定在位置,并且反应小瓶可移动进入和离开热源。 反应容器具有一个或多个密封塞,其与反应容器相关的定位可从远程位置控制。 此外,一个或多个反应容器密封塞可以包括一个或多个管道,用于输送反应物,大气压或高压气体,惰性气体,抽真空和从反应小瓶中除去反应终产物, 具有密封塞位置的反应小瓶可在升高的压力下操作。 模块化化学生产系统由模块组装,每个模块可以包括操作状态传感器和配置成用于从远程位置监控和控制各个模块和组装系统的控制器。 其他模块包括但不限于试剂储存和输送模块,滤芯净化模块,微波反应模块,外部QC /分析/纯化界面模块,等分模块,F-18干燥模块,浓缩模块 ,辐射计数模块和毛细管反应堆模块。

    METHOD FOR PRODUCING NITROBENZENE COMPOUND
    56.
    发明申请
    METHOD FOR PRODUCING NITROBENZENE COMPOUND 有权
    生产硝基苯酚化合物的方法

    公开(公告)号:US20140163256A1

    公开(公告)日:2014-06-12

    申请号:US14131106

    申请日:2012-07-04

    CPC classification number: C07C201/06 C07C205/06 C07C205/58

    Abstract: A method for producing a nitrobenzene compound represented by general formula (2), wherein R1 and R5 are the same or different, and each is a halogen atom or another functional group, and R2, R3, and R4 are the same or different, and each is a hydrogen atom or another functional group, comprises oxidizing an aniline compound represented by general formula (1), wherein R1, R2, R3, R4, and R5 are the same as described above, with hydrogen peroxide in the presence of a tungsten compound under an acidic condition, followed by oxidation with hydrogen peroxide under a neutral to alkaline condition.

    Abstract translation: 一种制备由通式(2)表示的硝基苯化合物的方法,其中R1和R5相同或不同,并且各自为卤素原子或其它官能团,R2,R3和R4相同或不同, 各自为氢原子或另一官能团,包括将氧化由通式(1)表示的苯胺化合物,其中R1,R2,R3,R4和R5与上述相同,与过氧化氢在钨存在下 在酸性条件下,然后在中性至碱性条件下用过氧化氢氧化。

    Synthesis of 3-(5-nitrocyclohex-1-enyl) acrylic acid and esters thereof
    59.
    发明申请
    Synthesis of 3-(5-nitrocyclohex-1-enyl) acrylic acid and esters thereof 失效
    3-(5-硝基环己-1-烯基)丙烯酸及其酯的合成

    公开(公告)号:US20080009651A1

    公开(公告)日:2008-01-10

    申请号:US11824246

    申请日:2007-06-29

    Abstract: This application discloses provides a process for the introduction of nitro-group functionality into a compound which contains also a site of unsaturation and/or oxygen functionality by direct (one step) oxidation of an oxime functional group mediated by a molybdenum VI/VII peroxo complex, the process comprising: (a) providing a substrate of Formula I containing an oxime functional group;  wherein R1 and R2 are selected independently from linear, branched or cyclic alkyl and linear, branched or cyclic alkenyl groups, optionally substituted, with the proviso that at least one of R1 or R2 contains a carbon/carbon double bond; and (b) contacting said substrate of Formula I with a molybdenum oxidation complex, thereby oxidizing said oxime functional group to a nitro functional group to yield the structure of Formula III. Where R1 and R2 are as defined above.

    Abstract translation: 本申请公开提供了一种通过由钼VI / VII过氧配合物介导的肟官能团的直接(一步)氧化将硝基官能团引入到还含有不饱和位和/或氧官能团位点的化合物的方法 该方法包括:(a)提供含有肟官能团的式I的底物; 其中R 1和R 2独立地选自直链,支链或环状的烷基和直链,支链或环状烯基,任选被取代,条件是至少一个 R 1或R 2 2含有碳/碳双键; 和(b)使式I的底物与钼氧化络合物接触,从而将所述肟官能团氧化为硝基官能团,得到式III的结构。 其中R 1和R 2如上定义。

    Preparation of nitro compounds by vapor phase nitration of olefins
    60.
    发明授权
    Preparation of nitro compounds by vapor phase nitration of olefins 失效
    通过气相硝化烯烃制备硝基化合物

    公开(公告)号:US4766257A

    公开(公告)日:1988-08-23

    申请号:US849765

    申请日:1984-09-12

    CPC classification number: C07C201/06

    Abstract: A process for selectively forming nitrohydrocarbon compounds by contacting, at elevated temperature and pressure and in a homogeneous gas phase, an olefinic unsaturated compound having at least three carbon atoms with NO.sub.2 alone or in the presence of oxygen and/or water.

    Abstract translation: 通过在升高的温度和压力下,在均相气相中使具有至少三个碳原子的烯属不饱和化合物与NO 2单独或在氧和/或水的存在下接触来选择性地形成硝基烃化合物的方法。

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