VERFAHREN ZUR HERSTELLUNG VON NITROBENZOL
    412.
    发明申请
    VERFAHREN ZUR HERSTELLUNG VON NITROBENZOL 审中-公开
    用于生产硝基苯

    公开(公告)号:WO2015197521A1

    公开(公告)日:2015-12-30

    申请号:PCT/EP2015/063924

    申请日:2015-06-22

    Abstract: Die vorliegende Erfindung betrifft ein Verfahren zur kontinuierlichen Herstellung von Nitrobenzol durch Nitrierung von Benzol mit einem Gemisch aus Salpetersäure und Schwefelsäure unter adiabaten Bedingungen, bei dem während eines Produktions Stillstandes nicht die ganze Produktionsanlage abgefahren wird, sondern die Produktionsanlage ganz oder zumindest teilweise „im Kreis" gefahren wird. Des Weiteren betrifft die vorliegende Erfindung eine Anlage zur Herstellung von Nitrobenzol und ein Verfahren zum Betrieb einer Anlage zur Herstellung von Nitrobenzol.

    Abstract translation: 本发明涉及一种用于连续生产硝基苯的由苯的硝化用硝酸和绝热条件下硫酸,其特征在于,生产停顿期间不是整个生产线被追踪的混合物,但生产植物完全或至少部分地“在一个圆圈” 此外被驱动。,本发明涉及用于生产硝基苯中,然后用于操作植物用于生产硝基苯的方法的植物。

    METHOD FOR REMOVING HCN FROM CRUDE DINITRO TOLUENE
    413.
    发明申请
    METHOD FOR REMOVING HCN FROM CRUDE DINITRO TOLUENE 审中-公开
    从原料中除去HCN的方法

    公开(公告)号:WO2015032706A1

    公开(公告)日:2015-03-12

    申请号:PCT/EP2014/068464

    申请日:2014-09-01

    Applicant: BASF SE

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

    Abstract: A process for the preparation of dintrotoluene which comprises (a) nitrating toluene with a nitrating acid, wherein said nitrating acid is a mixture of nitric acid and sulfuric acid, in one or more nitration steps, and separating the nitrating acid from the process stream thus formed, wherein a crude mixture comprising dinitrotoluene and a fraction of said nitrating acid dissolved therein is obtained, said crude mixture further comprising at least 50 ppm of HCN, and (b) washing the crude dinitrotoluene containing mixture in one or more washing steps, wherein, before the first washing step is carried out, the crude mixture is distilled and/or stripped to remove HCN there-from, wherein a crude dinitrotoluene containing mixture which is essentially free of HCN is obtained.

    Abstract translation: 一种制备二苯并芴的方法,其包括(a)在一个或多个硝化步骤中将硝酸与硝酸反应,其中所述硝酸是硝酸和硫酸的混合物,并将硝酸与工艺流分离,因此 形成,其中获得包含二硝基甲苯和所述硝酸的一部分溶解在其中的粗混合物,所述粗混合物还包含至少50ppm的HCN,和(b)在一个或多个洗涤步骤中洗涤含有二硝基甲苯的粗混合物,其中 在进行第一洗涤步骤之前,将粗混合物蒸馏和/或汽提以除去其中的HCN,其中获得基本上不含HCN的粗二硝基甲苯的混合物。

    COMPOUNDS OF '3-(5-SUSTITUTED OXY-2,4-DINITRO-PHENYL)-2-OXO-PROPIONIC ACID ESTER', PROCESS AND APPLICATIONS THEREOF
    415.
    发明申请
    COMPOUNDS OF '3-(5-SUSTITUTED OXY-2,4-DINITRO-PHENYL)-2-OXO-PROPIONIC ACID ESTER', PROCESS AND APPLICATIONS THEREOF 审中-公开
    “3-(5-巯基-2-丁基苯基)-2-氧 - 丙酸酯”的化合物,其工艺及应用

    公开(公告)号:WO2014195896A1

    公开(公告)日:2014-12-11

    申请号:PCT/IB2014/061980

    申请日:2014-06-05

    CPC classification number: C07D471/04 C07C201/08 C07C205/56 C07C205/12

    Abstract: The present disclosure relates to compounds of Formula (I) and process of obtaining the same. Said compounds of Formula (I) is employed in the syntheses of pyrroloquinoline quinone (PQQ), 4,5-dioxo-4,5-dihydro-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid 2-allyl ester, 5-ethoxy-5-hydroxy-4-oxo-4,5-dihydro-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid, 5- hydroxy-6-(1,1,4-trioxo-1 lambda* 6*-1,2, 5 -thiadiazolidin-2-yl)-1H-indole-2-carboxylic acid and its pharmaceutically acceptable salts. Said syntheses of compounds via. compounds of Formula (I) as intermediates employ minimum number of steps resulting in a shorter process and has improved efficiency along with many other advantages.

    Abstract translation: 本公开涉及式(I)的化合物及其获得方法。 所述式(I)化合物用于合成吡咯并喹啉醌(PQQ),4,5-二氧代-4,5-二氢-1H-吡咯并[2,3-f]喹啉-2,7,9-三羧酸 酸2-烯丙酯,5-乙氧基-5-羟基-4-氧代-4,5-二氢-1H-吡咯并[2,3-f]喹啉-2,7,9-三羧酸,5-羟基-6 - (1,1,4-三氧杂-1λ* 6 * -1,2,5-噻二唑烷-2-基)-1H-吲哚-2-羧酸及其药学上可接受的盐。 所述合成化合物通过。 作为中间体的式(I)化合物使用最少数量的步骤,导致更短的工艺并且具有改善的效率以及许多其它优点。

    CONTINUOUS TWO STEP FLOW SYNTHESIS OF M-AMINO ACETOPHENONE
    417.
    发明申请
    CONTINUOUS TWO STEP FLOW SYNTHESIS OF M-AMINO ACETOPHENONE 审中-公开
    连续两步流程合成M-AMINO ACETOPHENONE

    公开(公告)号:WO2013054181A1

    公开(公告)日:2013-04-18

    申请号:PCT/IB2012/002052

    申请日:2012-10-15

    CPC classification number: C07C221/00 C07C201/08 C07C205/45 C07C225/22

    Abstract: Disclosed herein is a continuous tubular reactor based conversion of acetophenones to amino substituted acetophenones wherein the nitration is carried out at -10 to 10 °C followed by reduction to m-nitrophenone resulting in uniform output of product, said process comprising the steps of: a) Nitrating acetophenone with nitrating agent (nitration mixture or fuming nitric acid) at -10 to 10 °C; b) Isolating m-nitro acetophenone from a mixture of o and m-nitro acetophenone and c) Reducing the m-nitro to obtain m-amino acetophenone.

    Abstract translation: 本文公开了一种基于乙酰苯的连续管式反应器转化为氨基取代的苯乙酮,其中硝化在-10至10℃下进行,随后还原为间硝基苯酮,导致产物的均匀输出,所述方法包括以下步骤: )在-10至10℃下用硝化剂(硝化混合物或发烟硝酸)硝化苯乙酮; b)从间硝基苯乙酮的混合物中分离间硝基苯乙酮,和c)还原间硝基以获得间氨基苯乙酮。

    METHOD FOR CONTINUOUSLY PRODUCING NITROBENZENE
    420.
    发明申请
    METHOD FOR CONTINUOUSLY PRODUCING NITROBENZENE 审中-公开
    工艺硝基苯连续生产

    公开(公告)号:WO2012013678A3

    公开(公告)日:2012-04-26

    申请号:PCT/EP2011062833

    申请日:2011-07-26

    Abstract: The invention relates to a continuous method for producing nitrobenzene by nitriding benzene by means of nitric acid or mixtures of nitric acid and sulfuric acid to form raw nitrobenzene, washing the raw nitrobenzene by means of at least one acidic, alkaline, and neutral wash, respectively, wherein a prepurified nitrobenzene is obtained, comprising at least light boilers, optionally medium boilers, and high boilers and salts in addition to nitrobenzene, wherein the prepurified nitrobenzene is further purified by separating light boilers in a distillation apparatus by evaporating the light boilers and separating nitrobenzene from the further purified nitrobenzene thus obtained in a distillation apparatus by partially evaporating nitrobenzene, wherein pure nitrobenzene is removed from the distillation apparatus in gaseous form and then condensed, and wherein the non-evaporated part of the further purified nitrobenzene is fed back into the wash at an arbitrary point.

    Abstract translation: 本发明涉及一种连续方法用于通过用硝酸或硝酸与硫酸的混合物的粗硝基苯苯的硝化生产硝基苯的,洗涤的粗硝基苯装置中的至少每一个酸性,碱性和中性衣物,其特征在于,预纯化的硝基苯得到的 是,可选地至少低沸,介质锅炉和高沸点物和它们的盐,其中,所述预纯化硝基苯进一步除去在蒸馏设备中低沸物纯化通过蒸发从这样获得的纯化进一步硝基苯低沸点和硝基苯的分离在含有硝基苯 由硝基苯的部分蒸发,蒸馏装置,其中纯硝基苯以气态形式抽出到蒸馏装置,然后冷凝,和的未蒸发部分中一个硝基苯进一步纯化 洗涤的任何部分被返回。

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