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    A METHOD AND A SYSTEM FOR SEPARATING AND TREATING IMPURITIES FROM A HYDROGEN CHLORIDE LIQUID MIXTURE
    2.
    发明申请
    A METHOD AND A SYSTEM FOR SEPARATING AND TREATING IMPURITIES FROM A HYDROGEN CHLORIDE LIQUID MIXTURE 审中-公开

    公开(公告)号：US20190194018A1

    公开(公告)日：2019-06-27

    申请号：US16312358

    申请日：2017-06-30

    申请人： Covestro Deutschland AG

    发明人： Andre RITTERMEIER ,  Rainer HELLMICH ,  Alfred SOPPE ,  Luyan WU ,  Micky QIAN ,  Peter LEHNER ,  Jürgen BITTNER ,  Friedhelm STEFFENS ,  Henrike FINKE ,  Eric JAKOBS

    IPC分类号： C01B7/07 ,  C07C263/10 ,  C07C263/20

    CPC分类号： C01B7/0712 ,  C07C263/10 ,  C07C263/20

    摘要： The present invention relates to a method and a system for separating and treating impurities from a hydrogen chloride liquid mixture, and particularly relates to a method and a system for separating and treating impurities from a hydrogen chloride liquid mixture produced from the process for preparing isocyanate with phosgenation. Said method comprising the steps of: sending said hydrogen chloride liquid mixture into a gas-liquid separation column for separation to yield a liquid phase flow comprising impurities at the bottom of said gas-liquid separation column, and the impurities comprising ammonium chloride; making the liquid phase flow comprising impurities flow into a neutralization tank through a liquid phase flow pipeline from the bottom of the gas-liquid separation column, neutralizing the liquid phase flow comprising impurities with an alkaline liquid in the neutralization tank to yield a neutralized solution, and sending the neutralized solution into a waste liquid treatment device from said neutralization tank for treatment. The method and system provided by the invent ion solve the problem of the blocking of the liquid flow pipeline, the valve and the gas-liquid separation column due to impurity deposit ion, and reduce the shutdown frequency for maintenance.

    PROCESS FOR SEPARATING AN ISOCYANATE PREPARED BY PHOSGENATION OF A PRIMARY AMINE IN THE GAS PHASE FROM THE GASEOUS CRUDE PRODUCT OF THE PHOSGENATION
    6.
    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

    申请人： BAYER MATERIALSCIENCE AG

    发明人： Friedhelm STEFFENS ,  Bastian Mahr

    IPC分类号： C07C263/20 ,  B01D3/00

    CPC分类号： C07C263/20 ,  B01D3/009 ,  C07C253/00 ,  C07C263/18 ,  C07C265/14

    摘要： 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.

    摘要翻译： 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。

    METHODS AND COMPOSITIONS FOR MAKING AN AMINO ACID TRIISOCYANATE
    7.
    发明申请
    METHODS AND COMPOSITIONS FOR MAKING AN AMINO ACID TRIISOCYANATE 有权
    制备氨基酸三硝基甲酸酯的方法和组合物

    公开(公告)号：US20150197488A1

    公开(公告)日：2015-07-16

    申请号：US14153419

    申请日：2014-01-13

    申请人： Warsaw Orthopedic, Inc.

    发明人： Roger E. Harrington ,  Kerem N. Kalpakci ,  David S. Scher

    IPC分类号： C07C263/10 ,  C07C265/14 ,  C01B31/28 ,  C07C263/20

    CPC分类号： C07C265/14 ,  C01B32/80 ,  C07C263/10 ,  C07C263/20 ,  C08G18/3206 ,  C08G18/771

    摘要： A method of making an amino acid triisocyanate is provided, the method comprising reacting an amino acid trihydrochloride with phosgene to form the amino acid triisocyanate. In some embodiments, the amino acid trihydrochloride comprises lysine ester trihydrochloride salt and the amino acid triisocyanate comprises lysine ester triisocyanate. In some embodiments, there is a lysine ester triisocyanate having a purity of at least about 98%, the lysine ester triisocyanate having a structure resulting from reacting lysine ester trihydrochloride salt with phosgene to form the lysine ester triisocyanate. These lysine ester triisocyanates can be used to make biodegradable polyurethanes.

    摘要翻译： 提供了制备氨基酸三异氰酸酯的方法，该方法包括使氨基酸三盐酸盐与光气反应形成氨基酸三异氰酸酯。 在一些实施方案中，氨基酸三盐酸盐包含赖氨酸三盐酸盐，氨基酸三异氰酸酯包含赖氨酸三异氰酸酯。 在一些实施方案中，存在纯度为至少约98％的赖氨酸三异氰酸酯，赖氨酸三异氰酸酯具有由赖氨酸三盐酸盐与光气反应形成赖氨酸三异氰酸酯的结构。 这些赖氨酸酯三异氰酸酯可用于制造可生物降解的聚氨酯。

    Process for the production of methylene diphenyl diisocyanate isomer mixtures with high 2,4′-methylene diphenyl diisocyanate purity
    8.
    发明授权
    Process for the production of methylene diphenyl diisocyanate isomer mixtures with high 2,4′-methylene diphenyl diisocyanate purity 有权
    用于生产具有高2,4'-亚甲基二苯基二异氰酸酯纯度的亚甲基二苯基二异氰酸酯异构体混合物的方法

    公开(公告)号：US09080005B2

    公开(公告)日：2015-07-14

    申请号：US14347764

    申请日：2012-11-19

    申请人： Andrei S. Merenov ,  Gerard I. Jansma ,  Paul A. Gillis

    发明人： Andrei S. Merenov ,  Gerard I. Jansma ,  Paul A. Gillis

    IPC分类号： C08G18/76 ,  C07C263/10 ,  C07C263/20

    CPC分类号： C08G18/7671 ,  C07C263/10 ,  C07C263/20 ,  C07C265/14

    摘要： The present invention includes a process and apparatus for the production of methylene diphenyl diisocyanate (MDI) isomer mixtures with a low 2,2′-MDI isomer content and a high 2,4′-MDI isomer content. The resulting mixtures have an increased reactivity and are acceptable in food grade application due to the reduction in primary aromatic amines formed during the curing process. The process and apparatus also include controlling the amount of 4,4′-MDI, which is the most reactive isomer in the mixture allowing use in a wide variety of applications.

    摘要翻译： 本发明包括用于生产具有低2,2'-MDI异构体含量和高2,4'-MDI异构体含量的亚甲基二苯基二异氰酸酯（MDI）异构体混合物的方法和设备。 所得到的混合物具有增加的反应性，并且在食品级应用中是可接受的，这是由于在固化过程中形成的伯芳族胺的还原。 该方法和装置还包括控制4,4'-MDI的量，其为混合物中最具反应活性的异构体，可用于各种应用。

    Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series
    10.
    发明授权
    Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series 有权
    同时生产二苯基甲烷系列的二异氰酸酯异构体的不同混合物的方法

    公开(公告)号：US08779182B2

    公开(公告)日：2014-07-15

    申请号：US13122162

    申请日：2009-10-01

    申请人： Johannes Lodewijk Koole ,  Adolf Daan Zijl ,  Robert Henry Carr

    发明人： Johannes Lodewijk Koole ,  Adolf Daan Zijl ,  Robert Henry Carr

    IPC分类号： C07C263/00 ,  C07C263/20

    CPC分类号： C07C263/20 ,  C07C265/14

    摘要： Process for the simultaneous and continuous production of two different mixtures of predominantly 4,4′-MDI and 2,4′-MDI in a single-step suspension melt crystallisation process whereby a mixed diisocyanate feed stream [MIx] is used to produce simultaneously two mixed diisocyanate streams [MIy] and [MIz] wherein x=80 to 92, y=97 to 99 and z=60 to 80 preferably x=82 to 88, y=97.2 to 98.5 and z=63 to 70 where x, y and z are percentages by weight of the 4,4′-MDI isomer contained in the diisocyanate isomer mixture.

    摘要翻译： 在单步悬浮液熔融结晶过程中同时和连续生产主要为4,4'-MDI和2,4'-MDI的两种不同混合物的方法，由此使用混合二异氰酸酯进料流[MIx]同时制备两个 混合二异氰酸酯流[MIy]和[MIz]其中x = 80〜92，y = 97〜99，z = 60〜80，优选x = 82〜88，y = 97.2〜98.5，z = 63〜70，其中x，y 和z是二异氰酸酯异构体混合物中所含的4,4'-MDI异构体的重量百分比。