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    Process for preparing aminopolycarboxylates proceeding from amino acids
    3.
    发明授权
    Process for preparing aminopolycarboxylates proceeding from amino acids 失效
    由氨基酸制备氨基多羧酸盐的方法

    公开(公告)号：US08785685B2

    公开(公告)日：2014-07-22

    申请号：US13430105

    申请日：2012-03-26

    申请人： Robert Baumann ,  Markus Christian Biel ,  Axel Franzke ,  Thomas Heidenfelder ,  Paul Klingelhoefer ,  Alfred Oftring

    发明人： Robert Baumann ,  Markus Christian Biel ,  Axel Franzke ,  Thomas Heidenfelder ,  Paul Klingelhoefer ,  Alfred Oftring

    IPC分类号： C07C227/18 ,  C07C227/02

    CPC分类号： C07C227/18 ,  C07C227/02 ,  C07C227/12 ,  C07C229/16 ,  C07C229/12

    摘要： The present invention relates to a process for preparing aminopolycarboxylates proceeding from an amino acid which, in a first process step is reacted with ethylene oxide to give an intermediate mixture comprising the corresponding dialkanolamine, and then the intermediate mixture, in a second process step is converted catalytically using a base to the corresponding aminopolycarboxylate, wherein the amino acid, before the reaction with ethylene oxide in the first process step, is supplied to a partial neutralization with 0.70 to 0.99 equivalent of base per acid group, or, in the first process step, an amino acid which has already been partly neutralized with 0.70 to 0.99 equivalent of base per acid group is used.

    摘要翻译： 本发明涉及从氨基酸制备氨基多羧酸盐的方法，该方法在第一工艺步骤与环氧乙烷反应得到包含相应的二链烷醇胺的中间体混合物，然后在第二工艺步骤中将中间体混合物转化 催化地将碱用于相应的氨基多羧酸盐，其中在与第一工艺步骤中的环氧乙烷反应之前，将氨基酸以0.70-0.99当量的碱/酸组供应至部分中和，或者在第一工艺步骤 使用已经用0.70〜0.99当量碱的每个酸基部分中和的氨基酸。

    PROCESS FOR PREPARING AMINOPOLYCARBOXYLATES PROCEEDING FROM AMINO ACIDS
    5.
    发明申请
    PROCESS FOR PREPARING AMINOPOLYCARBOXYLATES PROCEEDING FROM AMINO ACIDS 失效
    用于制备从氨基酸处理的氨基羟基羧酸酯的方法

    公开(公告)号：US20120264973A1

    公开(公告)日：2012-10-18

    申请号：US13430105

    申请日：2012-03-26

    申请人： Robert Baumann ,  Markus Christian Biel ,  Axel Franzke ,  Thomas Heidenfelder ,  Paul Klingelhoefer ,  Alfred Oftring

    发明人： Robert Baumann ,  Markus Christian Biel ,  Axel Franzke ,  Thomas Heidenfelder ,  Paul Klingelhoefer ,  Alfred Oftring

    IPC分类号： C07C227/18

    CPC分类号： C07C227/18 ,  C07C227/02 ,  C07C227/12 ,  C07C229/16 ,  C07C229/12

    摘要： The present invention relates to a process for preparing aminopolycarboxylates proceeding from an amino acid which, in a first process step is reacted with ethylene oxide to give an intermediate mixture comprising the corresponding dialkanolamine, and then the intermediate mixture, in a second process step is converted catalytically using a base to the corresponding aminopolycarboxylate, wherein the amino acid, before the reaction with ethylene oxide in the first process step, is supplied to a partial neutralization with 0.70 to 0.99 equivalent of base per acid group, or, in the first process step, an amino acid which has already been partly neutralized with 0.70 to 0.99 equivalent of base per acid group is used.

    摘要翻译： 本发明涉及从氨基酸制备氨基多羧酸盐的方法，该方法在第一工艺步骤与环氧乙烷反应得到包含相应的二链烷醇胺的中间体混合物，然后在第二工艺步骤中将中间体混合物转化 催化地将碱用于相应的氨基多羧酸盐，其中在与第一工艺步骤中的环氧乙烷反应之前，将氨基酸以0.70-0.99当量的碱/酸组供应至部分中和，或者在第一工艺步骤 使用已经用0.70〜0.99当量碱的每个酸基部分中和的氨基酸。

    METHOD FOR ISOLATING METHYLGLYCINENITRILE-N,N-DIACETONITRILE
    6.
    发明申请
    METHOD FOR ISOLATING METHYLGLYCINENITRILE-N,N-DIACETONITRILE 审中-公开
    用于分离甲基丝氨酸N，N-二乙基纤维素的方法

    公开(公告)号：US20120184769A1

    公开(公告)日：2012-07-19

    申请号：US13498825

    申请日：2010-09-29

    申请人： Bernd Judat ,  Alfred Oftring ,  Armin Stamm ,  Friedhelm Teich

    发明人： Bernd Judat ,  Alfred Oftring ,  Armin Stamm ,  Friedhelm Teich

    IPC分类号： C07C253/34

    CPC分类号： C07C253/34 ,  C07C255/25

    摘要： A method for isolating methylglycinenitrile-N,N-diacetonitrile (MGDN) from an aqueous mixture comprising MGDN is provided The method comprises cooling the aqueous mixture in one or more steps In one of these steps the mixture is cooled at a cooling rate of at least 20 K/h from a temperature above the solidification point of MGDN to a temperature below the solidification point of MGDN The method is implemented continuously

    摘要翻译： 提供了从包含MGDN的含水混合物中分离甲基亚氨基腈-N，N-二乙腈（MGDN）的方法。该方法包括在一个或多个步骤中冷却含水混合物。在这些步骤之一中，将混合物以至少的冷却速率 从MGDN的凝固点以上的温度20K / h到低于MGDN凝固点的温度。该方法连续实施

    METHOD FOR THE PRODUCTION OF AMINODICARBOXYLIC ACID-N,N-DIACETIC ACIDS
    8.
    发明申请
    METHOD FOR THE PRODUCTION OF AMINODICARBOXYLIC ACID-N,N-DIACETIC ACIDS 有权
    用于生产氨基甲酰氧基-N，N-二乙酸的方法

    公开(公告)号：US20110004016A1

    公开(公告)日：2011-01-06

    申请号：US12919149

    申请日：2009-03-02

    申请人： Alfred Oftring ,  Armin Stamm ,  Friedrich Wirsing ,  Gerold Braun

    发明人： Alfred Oftring ,  Armin Stamm ,  Friedrich Wirsing ,  Gerold Braun

    IPC分类号： C07C227/18 ,  C07C229/24

    CPC分类号： C07C227/18 ,  C07C229/24

    摘要： The present invention relates to a method for the production of aminodicarboxylic acid-N,N,diacetic acids of the general Formula I, wherein X independently of one another represents hydrogen or an alkali metal and n represents a number 1 or 2. Furthermore, the invention relates to aminodicarboxylic acid-N,N-diacetic acids of high purity. The inventive method comprises the following steps: A.) reacting an aminodicarboxylic acid of the general Formula II, wherein X and n have the aforementioned meanings, with 0.8 to 1.2 mole equivalents of formaldehyde and with 0.8 to 1.2 mole equivalents of hydrocyanic acid; b) reacting the reaction products of step a) with 0.8 to 1.2 mole equivalents of hydrocyanic acid and with 0.8 to 1.2 mole equivalents of formaldehyde; c) hydrolyzing in the reaction product obtained in step b).

    摘要翻译： 本发明涉及一种制备通式I的氨基二羧酸-N，N-二乙酸的方法，其中X彼此独立地表示氢或碱金属，n表示数1或2.此外， 本发明涉及高纯度的氨基二羧酸-N，N-二乙酸。 本发明方法包括以下步骤：A.将具有上述含义的X和n的通式II的氨基二羧酸与0.8至1.2摩尔当量的甲醛和0.8至1.2摩尔当量的氢氰酸反应; b）使步骤a）的反应产物与0.8至1.2摩尔当量的氢氰酸和0.8至1.2摩尔当量的甲醛反应; c）在步骤b）中获得的反应产物中水解。

    Method for Isolating Methyl Glycine Nitrile-N,N-Diacetonitriles from an Aqueous Crude Mixture
    9.
    发明申请
    Method for Isolating Methyl Glycine Nitrile-N,N-Diacetonitriles from an Aqueous Crude Mixture 有权
    从水性原料混合物中分离出甲基甘氨酸腈-N，N-二乙腈的方法

    公开(公告)号：US20080194858A1

    公开(公告)日：2008-08-14

    申请号：US11913726

    申请日：2006-05-03

    申请人： Alfred Oftring ,  Bernd Judat ,  Matthias Rauls ,  Katrin Friese

    发明人： Alfred Oftring ,  Bernd Judat ,  Matthias Rauls ,  Katrin Friese

    IPC分类号： C07C255/00

    CPC分类号： C07C253/34 ,  C07C255/24 ,  C07C255/25

    摘要： The invention relates to a process for isolating methylglycinenitrile-N,N-diacetonitrile (MGDN) from an aqueous emulsion which comprises MGDN and has an MGDN content of 3-50% by weight in a crystallizer, comprising the steps: (a) the aqueous emulsion is, starting from a temperature above the solidification point, cooled to a temperature below the solidification point, the cooling rate averaged over time not exceeding 5 K/h, until substantially the entirety of the emulsified MGDN has solidified, (b) the resulting aqueous suspension is cooled further and/or concentrated, and the cooling rate may be greater than in step (a).

    摘要翻译： 本发明涉及一种从结晶器中含有MGDN并具有3-50重量％的MGDN含量的水性乳液分离出甲基亚氨基腈-N，N-二乙腈（MGDN）的方法，包括以下步骤：（a） 乳液从高于固化点的温度开始冷却到低于凝固点的温度，随着时间的推移平均冷却速度不超过5K / h，直到基本上全部乳化的MGDN已经固化，（b）所得到的 水性悬浮液进一步冷却和/或浓缩，并且冷却速率可以大于步骤（a）。