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    Method and apparatus for denenoxing waste gases from nitration
    12.
    发明授权
    Method and apparatus for denenoxing waste gases from nitration 有权
    用于硝化硝化废气的方法和装置

    公开(公告)号：US09346012B2

    公开(公告)日：2016-05-24

    申请号：US14300504

    申请日：2014-06-10

    Applicant: Bayer MaterialScience LLC ,  Bayer MaterialScience AG

    Inventor： Bernd Pennemann ,  Ulrich Westphal ,  Dieter Foertsch ,  Spotswood Miller

    IPC: C07C209/00 ,  B01D53/56 ,  B01D53/77 ,  C07C209/32 ,  C07C209/76 ,  C07C201/08 ,  C07C209/36

    CPC classification number: B01D53/56 ,  B01D53/77 ,  C07C201/08 ,  C07C209/32 ,  C07C209/36 ,  C07C209/76 ,  C07C209/34 ,  C07C211/49 ,  C07C211/47 ,  C07C205/06 ,  C07C211/46

    Abstract: The invention relates to a method for reducing the concentration of nitrogen oxides in waste gases released dating the production of organic amino compounds, wherein an organic compound is first reacted with NOx and/or nitric acid to form an organic nitro compound with the formation of an NOx-containing waste gas stream and the organic nitro compound is converted to the organic ammo compound by means of hydrogen-containing reaction gas, the reaction of the organic nitro compound with the hydrogen-containing reduction gas taking place with the formation of a hydrogen-containing waste gas stream, the method being characterised in that the NOx-containing waste gas stream is combined with the hydrogen-containing waste gas stream and/or an externally supplied hydrogen stream and is reacted at a temperature of 800 to 1700° C. for the at least partial reduction of the NOx concentration. The invention additionally relates to an apparatus for carrying out the method.

    Abstract translation: 本发明涉及一种用于降低生产有机氨基化合物释放的废气中的氮氧化物浓度的方法，其中有机化合物首先与NO x和/或硝酸反应以形成有机硝基化合物，形成 含有NOx的废气流和有机硝基化合物通过含氢反应气体转化为有机氨基化合物，有机硝基化合物与含氢还原气体的反应发生，形成氢 - 该方法的特征在于，将含NO x的废气流与含氢废气流和/或外部供应的氢气流合并，并在800至1700℃的温度下反应，以便 NOx浓度的至少部分降低。 本发明还涉及一种用于执行该方法的装置。

    PROCESS FOR WORKING UP WASTE WATER FROM NITROBENZENE PREPARATION
    13.
    发明申请
    PROCESS FOR WORKING UP WASTE WATER FROM NITROBENZENE PREPARATION 有权
    从硝基苯制备工作废水的工艺

    公开(公告)号：US20160075582A1

    公开(公告)日：2016-03-17

    申请号：US14784443

    申请日：2014-04-15

    Applicant: BAYER MATERIALSCIENCE AG

    Inventor： Thomas Knauf ,  Antoni Mairata ,  Erik Sluyts ,  Jan Van Tricht

    IPC: C02F9/00 ,  C07C201/08

    CPC classification number: C02F9/00 ,  C02F1/025 ,  C02F1/20 ,  C02F1/66 ,  C02F2101/16 ,  C02F2101/322 ,  C02F2101/38 ,  C02F2103/18 ,  C02F2103/36 ,  C02F2301/066 ,  C07C201/08 ,  C07C201/16 ,  C07C205/06

    Abstract: The present invention provides a process for working up alkaline waste water which is formed during washing of crude nitrobenzene obtained by nitration of benzene, wherein(i) the alkaline waste water is heated to a temperature of from 150° C. to 500° C. under an increased pressure with respect to atmospheric pressure with exclusion of oxygen;(ii) a base is added to the waste water obtained in (i); and(iii) the waste water obtained in (ii) is purified further by stripping with a stripping gas and the stripping gas strewn loaded with impurities is then cooled to a temperature of from 10° C. to 60° C.

    Abstract translation: 本发明提供一种处理在通过硝化苯获得的粗硝基苯洗涤过程中形成的碱性废水的方法，其中（i）将碱性废水加热至150℃至500℃的温度。 在相对于排除氧气的大气压力的增加的压力下; （ii）向（i）中获得的废水中加入碱; 和（iii）通过汽提气体进一步纯化在（ii）中获得的废水，并将载有杂质的汽提气体冷却至10℃至60℃的温度。

    Method for producing nitrobenzene by adiabatic nitriding
    14.
    发明授权
    Method for producing nitrobenzene by adiabatic nitriding 有权
    通过绝热氮化生产硝基苯的方法

    公开(公告)号：US09284255B2

    公开(公告)日：2016-03-15

    申请号：US14413277

    申请日：2013-07-23

    Applicant: Bayer MaterialScience AG

    Inventor： Thomas Knauf ,  Alexandre Racoes ,  Wolfgang Dohmen ,  Antoni Mairata

    IPC: C07C201/00 ,  C07C201/06 ,  C07C201/08

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

    Abstract: The invention relates to an adiabatic process for producing nitrobenzene by nitrating benzene with sulphuric acid mixtures and nitric acid mixtures using a stoichiometric excess of benzene and reusing non-reacted benzene, the content of the aliphatic organic compounds in the feed benzene being limited, by the targeted evacuation of aliphatic organic compounds to at least one step in the process, to a content of less than 1.5 mass-%, in relation to the total amount of feed benzene.

    Abstract translation: 本发明涉及通过使用化学计量过量的苯用硝酸混合物和硝酸混合物硝化苯并重新使用未反应的苯来生产硝基苯的绝热方法，所述进料苯中的脂肪族有机化合物的含量受到限制， 将脂肪族有机化合物定向排出至该步骤中的至少一个步骤，其含量相对于进料苯的总量小于1.5质量％。

    HYDROPHILIC POLYASPARTIC ESTERS
    15.
    发明申请
    HYDROPHILIC POLYASPARTIC ESTERS 审中-公开
    水溶性聚酯酯

    公开(公告)号：US20160060380A1

    公开(公告)日：2016-03-03

    申请号：US14836144

    申请日：2015-08-26

    Applicant: Bayer MaterialScience AG

    Inventor： Hans-Josef Laas ,  Michael Grahl ,  Olaf Fleck ,  Hans-Ulrich Meyer-Westhues ,  Michèl La Faille

    IPC: C08G18/34 ,  C09D175/02 ,  C08G18/77

    CPC classification number: C09D175/02 ,  C07C229/24 ,  C07C229/28 ,  C07C2601/08 ,  C07C2601/14 ,  C08G18/222 ,  C08G18/283 ,  C08G18/3821 ,  C08G18/73 ,  C08G18/755 ,  C08G18/7837

    Abstract: Disclosed are polyaspartic esters obtainable by reaction of at least one polyamine component A), comprising an amine compound of the formula (I), where X is a saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic or aromatic organic radical which is substituted or unsubstituted and/or has heteroatoms in the chain, Y is a secondary amino group bonded to two carbon atoms, R1 and R2 independently of one another are saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic or aromatic organic radicals having 1 to 18 carbon atoms, and are substituted or unsubstituted and/or have heteroatoms in the chain, and n is a natural number from 1 to 4, with at least one polyisocyanate component B), comprising a polyisocyanate which contains at least one chemically bonded, non-ionic, hydrophilic group, characterized in that the ratio of the number of secondary amino groups Y to the number of isocyanate groups in the polyisocyanate is from 250:1 to 3:1. Further disclosed is a method for producing a coating composition, a 2-component system, the use thereof for producing a coating on a substrate, and the substrates coated accordingly.

    Abstract translation: 公开了通过至少一种多胺组分A）的反应获得的聚天冬氨酸酯，其包含式（I）的胺化合物，其中X是饱和或不饱和的直链或支链的脂族或脂环族或芳族有机基团，其被取代或 未取代的和/或在链中具有杂原子，Y是与两个碳原子键合的仲氨基，R 1和R 2彼此独立地是饱和或不饱和的直链或支链的具有1至18个碳原子的脂族或脂环族或芳族有机基团 原子，并且是取代或未取代的和/或在链中具有杂原子，n是1至4的天然数，与至少一种多异氰酸酯组分B），其包含含有至少一个化学键合的非离子的多异氰酸酯 亲水基团，其特征在于，多异氰酸酯中的仲氨基数Y与异氰酸酯基的数目的比例为250:1至3:1。 进一步公开了一种制备涂料组合物，2-组分体系，其用于在基材上制备涂层的用途的方法，以及相应地涂布的基材。

    MULTI-LAYER BODY MADE OF POLYCARBONATE WITH HIGH WEATHERING RESISTANCE
    16.
    发明申请
    MULTI-LAYER BODY MADE OF POLYCARBONATE WITH HIGH WEATHERING RESISTANCE 有权
    具有高耐候性的聚碳酸酯多层体

    公开(公告)号：US20160046838A1

    公开(公告)日：2016-02-18

    申请号：US14654692

    申请日：2013-12-18

    Applicant: BAYER MATERIALSCIENCE AG

    Inventor： ALEXANDER MEYER ,  Vincenzo TARAVELLA ,  Gianmaria MALVESTITI

    IPC: C09D183/06 ,  C08K5/3465 ,  B05D5/06 ,  C08K5/3445 ,  B05D7/00 ,  B05D7/02 ,  C08K5/08 ,  C08K5/3417

    CPC classification number: C09D183/06 ,  B05D5/061 ,  B05D7/02 ,  B05D7/544 ,  B05D7/546 ,  B32B27/365 ,  C08J7/042 ,  C08J7/047 ,  C08J2300/22 ,  C08J2369/00 ,  C08J2433/04 ,  C08J2475/04 ,  C08J2483/04 ,  C08K5/0041 ,  C08K5/005 ,  C08K5/08 ,  C08K5/103 ,  C08K5/18 ,  C08K5/3417 ,  C08K5/3445 ,  C08K5/3465 ,  G02B1/04 ,  G02B5/223 ,  C08L69/00 ,  C08L83/04

    Abstract: Disclosed is a multi-layer body with high weathering resistance comprising (a) a substrate layer containing at least one thermoplastic polymer (b) one cover layer on at least one side of the substrate layer, characterised in that the substrate layer further contains: (a1) at 0.02 wt. % to 0.2 wt %, at least one colorant on the basis of anthraquinone of structure (1) or (2) with structure (1), R1 and R2 standing, independently of each other, for H, OH, OR5 NH2 and NHR5, R5 being selected from alkyl, cycloalkyl, phenyl and substituted and annulated phenyls, and R3 standing for H, alkyl, alkoxy, and R4 standing for H, OH and p-methylphenyl-NH—; and with structure (2): (a2) at 0.01 wt % to 1.00 wt. %, one or a plurality of demoulders, and the cover layer consisting of a coating on the basis of polysiloxane or on the basis of polyacrylate or on the basis of polyurethane acrylate, containing at least one UV-absorber and having a layer thickness of 2-15 m.

    Abstract translation: 公开了一种具有高耐候性的多层体，其特征在于：（a）在所述基材层的至少一侧含有至少一种热塑性聚合物（b）一层覆盖层的基材层，其特征在于，所述基材层还包含： a1）0.02重量％ 基于具有结构（1）的结构（1）或（2）的蒽醌的至少一种着色剂，R 1和R 2彼此独立地表示H，OH，OR 5 NH 2和NHR 5的至少一种着色剂， R5选自烷基，环烷基，苯基和取代和环状苯基，R3代表H，烷基，烷氧基和R4代表H，OH和对甲基苯基-NH-; 和结构（2）：（a2）在0.01重量％至1.00重量％ ％，一个或多个脱模剂，以及覆盖层，其由基于聚硅氧烷的涂层或基于聚丙烯酸酯或基于聚氨酯丙烯酸酯的聚氨酯丙烯酸酯组成，所述聚氨酯丙烯酸酯含有至少一种UV吸收剂并且层厚度为2 -15米。

    Method for producing nitrobenzene by adiabatic nitriding
    17.
    发明授权
    Method for producing nitrobenzene by adiabatic nitriding 有权
    通过绝热氮化生产硝基苯的方法

    公开(公告)号：US09260377B2

    公开(公告)日：2016-02-16

    申请号：US14415788

    申请日：2013-07-23

    Applicant: Bayer MaterialScience AG

    Inventor： Thomas Knauf ,  Michael Merkel ,  Antoni Mairata

    IPC: C07C201/06 ,  C07C201/08

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

    Abstract: The invention provides a continuous adiabatic process for the preparation of nitrobenzene by nitrating benzene with mixtures of sulfuric and nitric acids using a stoichiometric excess of benzene, wherein the content of organic compounds in the circulating sulfuric acid, at least during the start-up period of the production plant, is always kept below 1.0 mass percent, based on the total mass of circulating sulfuric acid. This is preferably achieved by a procedure in which, either after the end or before the beginning of a production cycle, the circulating sulfuric acid is circulated at elevated temperature so that the organics contained in the sulfuric acid, preferably comprising nitrobenzene and traces of benzene, dinitrobenzene and nitrophenols, are separated off in the evaporation apparatus for concentrating the sulfuric acid.

    Abstract translation: 本发明提供了一种连续的绝热方法，用于通过使用化学计量过量的苯将硫与硝酸的混合物硝化苯来制备硝基苯，其中循环硫酸中有机化合物的含量至少在启动期间 基于循环硫酸的总质量，生产厂总是保持在1.0质量％以下。 这优选通过以下程序来实现，其中，在生产周期结束或开始之前循环硫酸在升高的温度下循环，使得包含在硫酸中的有机物，优选包含硝基苯和痕量的苯， 二硝基苯和硝基苯酚在用于浓缩硫酸的蒸发装置中分离出来。

    PROCESS FOR SEPARATING AN ISOCYANATE PREPARED BY PHOSGENATION OF A PRIMARY AMINE IN THE GAS PHASE FROM THE GASEOUS CRUDE PRODUCT OF THE PHOSGENATION
    20.
    发明申请
    PROCESS FOR SEPARATING AN ISOCYANATE PREPARED BY PHOSGENATION OF A PRIMARY AMINE IN THE GAS PHASE FROM THE GASEOUS CRUDE PRODUCT OF THE PHOSGENATION 有权
    用于分离由PHOSGENATION的气体原料产生的气相中主要胺类化合物制备的异氰酸酯的方法

    公开(公告)号：US20150368190A1

    公开(公告)日：2015-12-24

    申请号：US14765870

    申请日：2014-02-05

    Applicant: BAYER MATERIALSCIENCE AG

    Inventor： Friedhelm STEFFENS ,  Bastian Mahr

    IPC: C07C263/20 ,  B01D3/00

    CPC classification number: C07C263/20 ,  B01D3/009 ,  C07C253/00 ,  C07C263/18 ,  C07C265/14

    Abstract: The present invention relates to a process for separating an isocyanate prepared by reaction of a primary amine with an excess of phosgene in the gas phase from the gaseous crude product obtained in the reaction, wherein (i) the gaseous crude product is partially liquefied by contacting with a quenching liquid, (ii) the gas phase obtained in step (i) is partially condensed, (iii) the condensate obtained in step (ii) is used as the quenching liquid in step (i), (iv) the portions of the gas phase that were not condensed in step (ii) are at least partially liquefied, (v) the liquid phase obtained in step (iv) is likewise used as the quenching liquid in step (i), and (vi) the liquid phase obtained in step (i) is worked up to the pure isocyanate without previously being used as quenching liquid.

    Abstract translation: 本发明涉及通过在气相中由伯胺与过量的光气反应制备的异氰酸酯的方法，该方法是从反应中得到的气态粗产物中分离，其中（i）气态粗产物通过接触部分液化 使用骤冷液体，（ii）步骤（i）中获得的气相部分冷凝，（iii）将步骤（ii）中得到的冷凝物用作步骤（i），（iv）中的骤冷液， 在步骤（ii）中未冷凝的气相至少部分液化，（v）步骤（iv）中获得的液相同样用作步骤（i）中的骤冷液，和（vi）液相 将步骤（i）中得到的物质除去预先用作骤冷液的方式处理至纯异氰酸酯。

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