利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

123 条记录 (耗时 0.047 秒)

    METHOD FOR PRODUCING LINEAR PENTENENITRILE
    8.
    发明申请
    METHOD FOR PRODUCING LINEAR PENTENENITRILE 有权
    生产线性胆固醇的方法

    公开(公告)号：US20120178958A1

    公开(公告)日：2012-07-12

    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 Baßler

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

    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 isomerisation catalyst to form a stream (1), which contains the isomerisation 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 isomerisation 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异构化含有2-甲基-3-丁烯腈的流出物流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）。

    Obtaining an aliphatic dialdehyde Monoacetal
    10.
    发明授权
    Obtaining an aliphatic dialdehyde Monoacetal 失效
    获得脂族二醛单缩醛

    公开(公告)号：US07498451B2

    公开(公告)日：2009-03-03

    申请号：US10536900

    申请日：2003-11-27

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

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

    IPC分类号： C07D317/26 ,  C07C45/64

    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。