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    Method for producing an aliphatic dialdehyde monoacetal
    61.
    发明申请
    Method for producing an aliphatic dialdehyde monoacetal 失效
    脂肪族二醛单缩醛的制造方法

    公开(公告)号：US20060058538A1

    公开(公告)日：2006-03-16

    申请号：US10536900

    申请日：2003-11-27

    申请人： Gerd Haderlein ,  Hans-Georg Gobbel ,  Wolfgang Siegel

    发明人： Gerd Haderlein ,  Hans-Georg Gobbel ,  Wolfgang Siegel

    IPC分类号： C07C317/10

    CPC分类号： C07D317/26 ,  B01D1/22 ,  B01D3/141 ,  B01D3/148 ,  B01D3/322 ,  C07C45/60 ,  C07C45/71 ,  C07C45/82 ,  C07C47/198

    摘要： The invention relates to a process for obtaining a pure aliphatic dialdehyde monoacetal by reaction of the corresponding aliphatic dialdehyde or a precursor of the corresponding aliphatic dialdehyde with one or more aliphatic mono- or polyhydric alcohols while distillatively removing water to obtain a reaction mixture which is separated distillatively, which comprises carrying out the distillative separation continuously in a dividing wall column to obtain pure aliphatic dialdehyde monoacetal as a sidestream from the dividing wall column, or in two distillation columns to obtain crude aliphatic dialdehyde monoacetal as a sidestream in the first distillation column, feed the crude aliphatic dialdehyde monoacetal to the second distillation column and obtain pure aliphatic dialdehyde monoacetal as the sidestream from the second distillation column.

    摘要翻译： 本发明涉及通过相应的脂族二醛或相应的脂族二醛的前体与一种或多种脂肪族一元醇或多元醇反应而获得纯的脂族二醛单缩醛的方法，同时蒸馏除去水，得到分离的反应混合物 蒸馏，其包括在分隔壁塔中连续进行蒸馏分离以获得作为来自分隔壁塔的侧流的纯脂族二醛单缩醛，或在两个蒸馏塔中，以在第一蒸馏塔中获得作为侧流的粗脂族二醛单缩醛， 将粗脂族二醛单缩醛进料至第二蒸馏塔，得到作为来自第二蒸馏塔的侧流的纯脂族二醛单缩醛。

    METHOD FOR PRODUCING 3-PENTENENITRILE BY MEANS OF THE HYDROCYANATION OF 1,3-BUTADIENE
    67.
    发明申请
    METHOD FOR PRODUCING 3-PENTENENITRILE BY MEANS OF THE HYDROCYANATION OF 1,3-BUTADIENE 有权

    公开(公告)号：US20090247779A1

    公开(公告)日：2009-10-01

    申请号：US12376731

    申请日：2007-08-01

    申请人： Gerd Haderlein ,  Tobias Aechtner ,  Andreas Leitner ,  Hermann Luyken ,  Peter Pfab ,  Jens Scheidel ,  Andrea Haunert ,  Thomas Genger

    发明人： Gerd Haderlein ,  Tobias Aechtner ,  Andreas Leitner ,  Hermann Luyken ,  Peter Pfab ,  Jens Scheidel ,  Andrea Haunert ,  Thomas Genger

    IPC分类号： C07C253/10

    CPC分类号： C07C253/10 ,  C07C255/07

    摘要： A method for producing 3-pentenenitrile by means of the hydrocyanation of 1,3-butadiene, which comprises the following process steps: (b′) distillation of 1,3-butadiene comprising water, 1- and 2-butenes and a stabilizer in a distillation apparatus K4 to obtain a stream 15 as the bottom product, which comprises dried 1,3-butadiene, 1- and 2-butenes and the stabilizer, and a stream 16 as the top product, which comprises an azeotropic 1,3-butadiene/water mixture, condensation of the stream 16 in a condenser W, transfer of the resulting condensate (stream 17) into a phase separation apparatus, recycling of the upper liquid phase (stream 18) consisting of 1,3-butadiene as reflux to the column K4, and discharge of the lower liquid aqueous phase (stream 19), (a) reaction of stream 15 in a reactor R1 with hydrogen cyanide over at least one catalyst (stream 6d) to obtain a stream 1 which comprises 3-pentenenitrile, 2-methyl-3-butenenitrile, the at least one catalyst, unconverted 1,3-butadiene, and 1- and 2-butenes, with or without residues of unconverted hydrogen cyanide, (b) distillation of stream 1 in a distillation apparatus K1 to obtain a stream 2 as the top product, which comprises the predominant portion of the 1,3-butadiene from stream 1, and to obtain a stream 3 as the bottom product, which comprises 3-pentenenitrile, the at least one catalyst, 2-methyl-3-butenenitrile, 1- and 2-butenes and the remaining proportion of the 1,3-butadiene from stream 1 which has not been removed in stream 2, (c) distillation of stream 3 in a distillation apparatus K2 to obtain a stream 5 at a side draw of the column, which 3-pentenenitrile and 2-methyl-3-butenenitrile, a stream 6 as the bottom product, which comprises the at least one catalyst, and a stream 4 as the top product, (d) compression of stream 4 in the compressor V1, discharge of a gaseous substream 4b which comprises 1- and 2-butenes, transfer of the compressed stream 4a into the condenser W1, combined cond. With stream 2 from b) in combined condensation of this stream 2 from b) and transfer of the condensate as stream 9, partly as reflux to the column K1 (stream 9b), partly as return stream into the reactor R1 (stream 9a), and (e) distillative separation of stream 5 to obtain 3-pentenenitrile and 2-methyl-3-butenenitrile.

    PROCESS FOR PRODUCING NICKEL(0)-PHOSPHORUS LIGAND COMPLEXES
    68.
    发明申请
    PROCESS FOR PRODUCING NICKEL(0)-PHOSPHORUS LIGAND COMPLEXES 有权
    生产镍（0） - 磷配体复合物的方法

    公开(公告)号：US20090054671A1

    公开(公告)日：2009-02-26

    申请号：US12279795

    申请日：2007-02-13

    申请人： Gerd Haderlein ,  Tobias Aechtner ,  Andreas Leitner ,  Peter Pfab ,  Hermann Luyken ,  Jens Scheidel

    发明人： Gerd Haderlein ,  Tobias Aechtner ,  Andreas Leitner ,  Peter Pfab ,  Hermann Luyken ,  Jens Scheidel

    IPC分类号： C07F15/04

    CPC分类号： B01J31/1845 ,  B01J31/24 ,  B01J2231/32 ,  B01J2531/847

    摘要： A process for preparing nickel(0)-phosphorus ligand complexes comprising at least one nickel(0) central atom and at least one phosphorus ligand by reacting a nickel(II) compound with a reducing agent in the presence of the ligand to give a reaction mixture, wherein a) the molar reducing agent:nickel(II) compound ratio in the reaction is from 1:1 to 1000:1, calculated as the molar ratio of the redox equivalents, b) the molar phosphorus ligand:nickel(II) compound ratio in the reaction is not more than 30:1, calculated as the molar P atoms:Ni atoms ratio, c) the nickel(0) content in the resulting reaction mixture is not more than 1.3% by weight and d) the resulting reaction mixture is extracted by adding at least one dinitrile and at least one hydrocarbon to form at least two immiscible phases.

    摘要翻译： 一种通过在配体存在下使镍（II）化合物与还原剂反应而制备包含至少一个镍（O）中心原子和至少一个磷配体的镍（0） - 磷配体络合物的方法，得到反应 混合物，其中a）摩尔还原剂：反应中的镍（II）化合物比例为1:1至1000:1，以氧化还原当量的摩尔比计算，b）磷配体：镍（II） 反应中的化合物比例不超过30:1，以P原子摩尔数计算：Ni原子比，c）所得反应混合物中的镍（0）含量不超过1.3重量％，d）所得的 通过加入至少一种二腈和至少一种烃以形成至少两个不混溶的相来萃取反应混合物。