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    Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof
    2.
    发明授权
    Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof 有权
    降低含氨基腈，二胺，二腈或其混合物的混合物中不饱和胺含量的方法

    公开(公告)号：US07385073B2

    公开(公告)日：2008-06-10

    申请号：US10515281

    申请日：2003-05-21

    申请人： Stefan Maixner ,  Christoph Benisch ,  Hermann Luyken ,  Peter Baβler ,  Rolf-Hartmuth Fischer ,  Johann-Peter Melder ,  Andreas Ansmann

    发明人： Stefan Maixner ,  Christoph Benisch ,  Hermann Luyken ,  Peter Baβler ,  Rolf-Hartmuth Fischer ,  Johann-Peter Melder ,  Andreas Ansmann

    IPC分类号： C07C253/34

    CPC分类号： C07C253/34 ,  C07C255/24

    摘要： A process for reducing the level of an aliphatic monounsaturated amine (IV) in a mixture (V) containing an aminonitrile (I) or a diamine (II) or a dinitrile (III) or mixtures thereof as well as said mine (IV) by a) reacting said mixture (V) with an anionic nucleophile (VI) which contains a nucleophilic atom selected from the group consisting of oxygen, nitrogen and sulfur, which is capable of taking up an H+ ion to form an acid having a pKa value in the range from 7 to 11, as measured in water at 25° C., and which has a relative nucleophilicity, as measured in methyl perchlorate/methanol at 25° C., in the range from 3.4 to 4.7 when said nucleophilic atom is oxygen, in the range from 4.5 to 5.8 when said nucleophilic atom is nitrogen, and in the range from 5.5 to 6.8 when said nucleophilic atom is sulfur, in an amount in the range from 0.01 to 10 mol per mole of said amine (IV) in said mixture (V) at a temperature in the range from 50 to 200° C. to obtain a mixture (VII), b) distilling said aminonitrile (I) or said diamine (II) or said dinitrile (III) or mixtures thereof from said mixture (VII) at a temperature in the range from 50 to 200° C. and at a pressure in the range from 0.1 to 100 kPa to obtain a bottom product (VIII), which comprises c) distilling an aminonitrile (I) or diamine (II) or dinitrile (III) or mixtures thereof from said bottom product (VIII) at a temperature which is lower than that chosen in step b).

    摘要翻译： 在含有氨基腈（I）或二胺（II）或二腈（III）或其混合物以及所述矿（IV）的混合物（V）中降低脂族单不饱和胺（IV）的水平的方法， a）使所述混合物（V）与阴离子亲核试剂（VI）反应，所述阴离子亲核试剂（VI）含有选自氧，氮和硫的亲核原子，其能够吸收H + 形成在25℃下在水中测量的具有7至11的pK值的酸，其在25℃下在高氯酸甲酯/甲醇中测得的具有相对亲核性 当所述亲核原子为氧时，在3.4至4.7的范围内，当所述亲核原子为氮时，在4.5至5.8的范围内，当所述亲核原子为硫时在5.5至6.8的范围内，其量为 在所述混合物（V）中在50至200℃的温度范围内每摩尔所述胺（IV）为0.01至10摩尔的范围，以获得混合物 （VII）中，b）在50至200℃的温度下，从所述混合物（VII）中蒸馏所述氨基腈（I）或所述二胺（II）或所述二腈（III）或其混合物， 压力为0.1至100kPa，以获得底部产物（VIII），其包括c）在所述底部产物（VIII）中蒸馏氨基腈（I）或二胺（II）或二腈（III）或其混合物， 温度低于步骤b）中选择的温度。

    Method for producing linear pentenenitrile
    4.
    发明授权
    Method for producing linear pentenenitrile 有权
    线性戊烯腈的制备方法

    公开(公告)号：US08410299B2

    公开(公告)日：2013-04-02

    申请号：US13361783

    申请日：2012-01-30

    申请人： Tim Jungkamp ,  Robert Baumann ,  Michael Bartsch ,  Gerd Haderlein ,  Hermann Luyken ,  Jens Scheidel ,  Tobias Aechtner ,  Peter Pfab ,  Petra Deckert ,  Wolfgang Siegel ,  Peter Baβler

    发明人： Tim Jungkamp ,  Robert Baumann ,  Michael Bartsch ,  Gerd Haderlein ,  Hermann Luyken ,  Jens Scheidel ,  Tobias Aechtner ,  Peter Pfab ,  Petra Deckert ,  Wolfgang Siegel ,  Peter Baβler

    IPC分类号： C07C253/30

    CPC分类号： C07C253/30 ,  C07C253/10 ,  Y02P20/582 ,  C07C255/07

    摘要： A method for producing 3-pentenenitrile is provided that includes: (a) isomerizing an educt stream containing 2-methyl-3-butenenitrile on at least one dissolved or dispersed isomerization catalyst to form a stream (1), which contains the isomerization catalyst(s), 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile; (b) distilling the stream (1) to obtain a stream (2) as the overhead product, which contains 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile and a stream (3) as the bottom product, which contains the isomerization catalyst(s); (c) distilling the stream (2) to obtain a stream (4) as the overhead product, which is enriched with (Z)-2-methyl-2-butenenitrile in comparison to stream (2), and a stream (5) as the bottom product, which is enriched with 3-pentenenitrile and 2-methyl-3-butenenitrile in comparison to stream (2); (d) distilling stream (5) to obtain a stream (6) as the bottom product, which contains 3-pentenenitrile and a stream (7) as the head product containing 2-methyl-3-butenenitrile.

    摘要翻译： 提供了一种制备3-戊烯腈的方法，其包括：（a）在至少一种溶解或分散的异构化催化剂上使含有2-甲基-3-丁烯腈的流出物异构化以形成含有异构化催化剂（ s），2-甲基-3-丁烯腈，3-戊烯腈和（Z）-2-甲基-2-丁烯腈; （b）蒸馏物流（1）以获得作为塔顶产物的物流（2），其含有2-甲基-3-丁烯腈，3-戊烯腈和（Z）-2-甲基-2-丁烯腈和流（ 3）作为含有异构化催化剂的底部产物; （c）与料流（2）相比，蒸馏物流（2）以获得作为塔顶产物的物流（4），其与（2）相比富含（Z）-2-甲基-2-丁烯腈， 作为与料流（2）相比富含3-戊烯腈和2-甲基-3-丁烯腈的底部产物; （d）蒸馏物流（5），得到作为底物的物流（6），其含有3-戊烯腈和作为含有2-甲基-3-丁烯腈的头部产物的物流（7）。