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19 条记录 (耗时 0.019 秒)

    Method for the production of aminodicarboxylic acid-N,N-diacetic acids
    12.
    发明授权
    Method for the production of aminodicarboxylic acid-N,N-diacetic acids 有权
    制备氨基二羧酸-N，N-二乙酸的方法

    公开(公告)号：US08455682B2

    公开(公告)日：2013-06-04

    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： C07C229/16

    CPC分类号： C07C227/18 ,  C07C229/24

    摘要： Provided is a method for the production of aminodicarboxylic acid N,N-diacetic acids of formula (I), wherein X is independently hydrogen or an alkali metal and n is 1 or 2. Aminodicarboxylic acid-N,N-diacetic acids of high purity can be yielded. The method involves: a) reacting an aminodicarboxylic acid, 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 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 b).

    摘要翻译： 提供了制备式（I）的氨基二羧酸N，N-二乙酸的方法，其中X独立地是氢或碱金属，n是1或2.高纯度的氨基二羧酸-N，N-二乙酸 可以得到。 该方法包括：a）使氨基二羧酸与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b）中得到的反应产物中水解。

    Neutralization of isophorone nitrile synthesis products
    13.
    发明授权
    Neutralization of isophorone nitrile synthesis products 失效
    异佛尔酮腈合成产物的中和

    公开(公告)号：US07652165B2

    公开(公告)日：2010-01-26

    申请号：US10539134

    申请日：2003-12-16

    申请人： Alfred Oftring ,  Gerold Braun

    发明人： Alfred Oftring ,  Gerold Braun

    IPC分类号： C07C253/12

    CPC分类号： C07C253/10 ,  C07C2601/14 ,  C07C255/46

    摘要： The present invention relates to a process for preparing 3-cyano-3,5,5-trimethylcyclohexanone (isophoronenitrile) by reacting isophorone with hydrogen cyanide in the presence of a base as a catalyst to obtain a crude isophoronenitrile product, and subsequently distilling the crude isophoronenitrile product, with the addition before distillation of at least one specific sulfonic acid or specific carboxylic acid. In addition, the present invention relates to the use of a specific sulfonic acid or of a specific carboxylic acid as a neutralizing agent before distillation of a crude isophoronenitrile product which has been obtained by reacting isophorone with hydrogen cyanide in the presence of a base as a catalyst, in order to avoid precipitates in the neutralization of the base used as a catalyst with an acid.

    摘要翻译： 本发明涉及一种在碱作催化剂存在下使异佛尔酮与氰化氢反应来制备3-氰基-3,5,5-三甲基环己酮（异佛尔酮）的方法，得到粗异烟腈腈产物，然后蒸馏粗产物 异佛尔酮腈产物，在蒸馏前加入至少一种特定的磺酸或特定的羧酸。 此外，本发明涉及在蒸馏前的异丙醇腈产物时使用特定的磺酸或特定羧酸作为中和剂，所述产物是通过在碱存在下将异佛尔酮与氰化氢反应而得到的 催化剂，以避免在用酸作为催化剂的碱的中和中沉淀。

    Method for producing long-chain glycine-N,N-diacetic acid derivatives
    14.
    发明授权
    Method for producing long-chain glycine-N,N-diacetic acid derivatives 失效
    制备长链甘氨酸-N，N-二乙酸衍生物的方法

    公开(公告)号：US06420593B2

    公开(公告)日：2002-07-16

    申请号：US09875995

    申请日：2001-06-08

    申请人： Rainer Rahm ,  Thomas Greindl ,  Alfred Oftring ,  Guenter Oetter ,  Juergen Detering ,  Gerold Braun

    发明人： Rainer Rahm ,  Thomas Greindl ,  Alfred Oftring ,  Guenter Oetter ,  Juergen Detering ,  Gerold Braun

    IPC分类号： C07C22904

    CPC分类号： C07C229/08 ,  C07C229/16 ,  C07C253/00 ,  C07C255/25

    摘要： A process for preparing compounds of the formula IIb  where R is C6-C30-alkyl or C6-C30-alkenyl, which may additionally have upto 5 hydroxyl groups, formyl groups, C1-C4-alkoxy groups, phenoxy groups or C1-C4-alkoxycarbonyl groups as substituents and may be interrupted by upto 5 nonadjacent oxygen atoms, or alkoxylate groups of the formula —(CH2)k—O—(A1O)m—(A2O)n—Y where A1 and A2 are, independently of one another, 1,2-alkylene groups having 2 to 4 carbon atoms, Y is hydrogen, C1-C12-alkyl, phenyl or C1-C4-alkoxycarbonyl, and k is 1, 2 or 3, and m and n are each numbers from 0 to 50, and the total of m+n must be at least 4, by reacting iminodiacetonitrile with aldehydes of the formula R—CHO and HCN or alkali metal cyanides, the process being carried out a) in the absence of an organic solvent and in the presence of a Lewis or Brönsted acid, or b) in the presence or absence of an organic solvent and in the presence of an emulsifier, or c) in the presence or absence of an organic solvent and under a pressure in the range from 1 to 40 bar.

    摘要翻译： 制备式IIb化合物的方法，其中R是C 6 -C 30 - 烷基或C 6 -C 30烯基，其可另外具有多达5个羟基，甲酰基，C 1 -C 4 - 烷氧基，苯氧基或C 1 -C 4 - 烷氧基羰基作为取代基，并且可以被至多5个不相邻的氧原子间隔或式 - （CH2）kO-（A1O）m-（A2O）nY的烷氧基化物，其中A1和A2彼此独立地为1,2 具有2至4个碳原子的亚烷基，Y是氢，C 1 -C 12 - 烷基，苯基或C 1 -C 4 - 烷氧基羰基，k是1,2或3，m和n各自为0至50， 通过使亚氨基二乙腈与式R-CHO和HCN或碱金属氰化物的醛反应，所述m + n的总和必须至少为4，该方法在不存在有机溶剂的情况下进行，并且在Lewis的存在下 或布朗斯台德酸，环）在存在或不存在有机溶剂的情况下和在乳化剂orc的存在下）在存在或不存在有机溶剂的情况下 在1至40巴的压力范围内。