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    Method for producing dinitriles
    32.
    发明申请
    Method for producing dinitriles 有权

    公开(公告)号：US20070155978A1

    公开(公告)日：2007-07-05

    申请号：US10586500

    申请日：2005-01-27

    申请人： Tim Jungkamp ,  Robert Baumann ,  Michael Bartsch ,  Gerd Haderlein ,  Hermann Luyken ,  Jens Scheidel

    发明人： Tim Jungkamp ,  Robert Baumann ,  Michael Bartsch ,  Gerd Haderlein ,  Hermann Luyken ,  Jens Scheidel

    IPC分类号： C07C253/10

    CPC分类号： C07C253/10 ,  C07C255/04

    摘要： A process is described for preparing adiponitrile and methylglutaronitrile, characterized by the following process steps: (a) reacting a reactant stream comprising pentenenitriles with hydrogen cyanide in the presence of at least one catalyst and of at least one promoter to obtain a reaction stream which comprises pentenenitriles, the at least one catalyst, catalyst degradation products, the at least one promoter, adiponitrile and methylglutaronitrile, (b) distilling the reaction stream to obtain a stream 3 which is depleted in pentenenitriles and comprises the at least one catalyst, catalyst degradation products, the at least one promoter, adiponitrile and methylglutaronitrile as the bottom product and a stream 4 enriched in pentenenitriles as the top product, (c) extracting the stream 3 using an extractant present in stream 5 to obtain a stream 6 enriched with extractant as the top product which comprises the catalyst, and a stream 7 depleted in extractant as the bottom product which comprises catalyst degradation products, the at least one promoter, pentenenitriles, adiponitrile and methylglutaronitrile, (d) distilling the stream 6 to obtain a stream 8 comprising the catalyst as the bottom product and a stream 9 comprising the extractant as the top product, (e) distilling the stream 7 to obtain a stream 10 as the bottom product which comprises catalyst degradation products, the at least one promoter, pentenenitriles, adiponitrile and methylglutaronitrile, and a stream 11 comprising the extractant as the top product, (f) distilling the stream 10 to obtain a stream 12 as the bottom product which comprises catalyst degradation products, the at least one promoter, adiponitrile and methylglutaronitrile, and a stream 13 comprising pentenenitriles as the top product, (g) distilling the stream 12 to obtain a stream 14 as the bottom product which comprises catalyst degradation products and the at least one promoter, and a stream 15 as the top product which comprises adiponitrile and methylglutaronitrile, (h) distilling the stream 15 to obtain a stream 16 comprising adiponitrile as the bottoms and a stream 17 comprising methylglutaronitrile as the top product.

    Method for the recycling of a Lewis acid
    33.
    发明授权
    Method for the recycling of a Lewis acid 失效
    路易斯酸回收方法

    公开(公告)号：US07084294B2

    公开(公告)日：2006-08-01

    申请号：US10520007

    申请日：2003-07-04

    申请人： Tim Jungkamp ,  Jens Scheidel ,  Hermann Luyken ,  Michael Bartsch ,  Robert Baumann ,  Gerd Haderlein

    发明人： Tim Jungkamp ,  Jens Scheidel ,  Hermann Luyken ,  Michael Bartsch ,  Robert Baumann ,  Gerd Haderlein

    IPC分类号： C07C253/10

    CPC分类号： B01J31/24 ,  B01J27/32 ,  B01J31/1845 ,  B01J31/4015 ,  B01J31/403 ,  B01J2231/343 ,  C07C253/10 ,  Y02P20/584 ,  C07C255/07

    摘要： A process for the recovery of a Lewis acid from a reaction mixture (I) which has been obtained in the hydrocyanation of an olefinically unsaturated compound to a nitrile which has a miscibility gap with water under certain pressure and temperature conditions, in the presence of a catalyst system comprising a Lewis acid and a complex compound. The method comprises a) removing the complex compound from mixture (I) to give a mixture (II), b) adding water to mixture (II) and placing mixture (II) under pressure and temperature conditions to provide a phase (III) and a phase (IV), c) adding a liquid diluent (V) which c1) does not form an azeotrope with water and whose boiling point under certain pressure conditions is higher than that of water, or c2) forms an azeotrope or heteroazeotrope with water under certain pressure conditions,  to phase (III), d) subjecting the mixture of phase (III) and liquid diluent (V) to distillation under the pressure conditions mentioned in step c1) or c2), and e) subjecting mixture (VII) to hydrocyanation of an olefinically unsaturated compound to give the nitrile.

    摘要翻译： 从在不饱和化合物的氢氰化中获得的反应混合物（I）中回收路易斯酸的方法，该反应混合物在一定压力和温度条件下，在与 催化剂体系包含路易斯酸和络合物。 该方法包括：a）从混合物（I）中除去配合物，得到混合物（II），b）在混合物（II）中加入水并将混合物（II）置于压力和温度条件下以提供相（III）和 相（Ⅳ），c）加入一种不与水形成共沸物的液体稀释剂（Ⅴ），其某些压力条件下的沸点高于水，或c2）与水形成共沸混合物 （III），d）在步骤c1）或c2）所述的压力条件下使相（III）和液体稀释剂（V）的混合物进行蒸馏，和e）使混合物（VII） 对烯属不饱和化合物进行氢化，得到腈。

    Method For Producing 3-Pentenenitrile
    37.
    发明申请
    Method For Producing 3-Pentenenitrile 有权
    生产3-戊烯腈的方法

    公开(公告)号：US20080227998A1

    公开(公告)日：2008-09-18

    申请号：US10586007

    申请日：2005-01-27

    申请人： Jens Scheidel ,  Tim Jungkamp ,  Michael Bartsch ,  Gerd Haderlein ,  Robert Baumann ,  Hermann Luyken

    发明人： Jens Scheidel ,  Tim Jungkamp ,  Michael Bartsch ,  Gerd Haderlein ,  Robert Baumann ,  Hermann Luyken

    IPC分类号： C07C255/01

    CPC分类号： C07C253/10 ,  C07C253/34 ,  C07C255/07

    摘要： A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) reacting 1,3-butadiene with hydrogen cyanide over at least one catalyst to obtain a stream 1 which comprises 3-pentenenitrile, 2-methyl-3-butenenitrile, the at least one catalyst and 1,3-butadiene, (b) distilling stream 1 in a column to obtain a high-1,3-butadiene stream 2 as the top product and a low-1,3-butadiene stream 3 as the bottom product which comprises 3-pentenenitrile, the at least one catalyst and 2-methyl-3-butenenitrile, (c) distilling stream 3 in a column to obtain a stream 4 as the top product which comprises 1,3-butadiene, a stream 5 which comprises 3-pentenenitrile and 2-methyl-3-butenenitrile at a side draw of the column, and a stream 6 as the bottom product which comprises the at least one catalyst, (d) distilling stream 5 to obtain a stream 7 as the top product which comprises 2-methyl-3-butenenitrile, and a stream 8 as the bottom product which comprises 3-pentenenitrile.

    摘要翻译： 描述了一种制备3-戊烯腈的方法，其特征在于以下工艺步骤：（a）使1,3-丁二烯与氰化氢在至少一种催化剂上反应，得到流1，其包含3-戊烯腈，2-甲基-3 丁烯腈，至少一种催化剂和1,3-丁二烯，（b）在塔中蒸馏物流1，得到作为顶部产物的高-1,3-丁二烯流2和低-1,3-丁二烯流 3作为底部产物，其包含3-戊烯腈，至少一种催化剂和2-甲基-3-丁烯腈，（c）在塔中蒸馏流3以获得作为顶部产物的料流4，其包含1,3-丁二烯 ，在塔的侧馏分中包含3-戊烯腈和2-甲基-3-丁烯腈的料流5和作为底部产物的料流6，其包含至少一种催化剂，（d）蒸馏流5以获得 流7作为顶部产物，其包含2-甲基-3-丁烯腈，以及作为底部产物的料流8，其包含3-戊烯 腈

    Process for removing water from a mixture containing water and zinc chloride
    38.
    发明授权
    Process for removing water from a mixture containing water and zinc chloride 失效
    从含水和氯化锌的混合物中除去水的方法

    公开(公告)号：US07407643B2

    公开(公告)日：2008-08-05

    申请号：US10519513

    申请日：2003-07-04

    申请人： Tim Jungkamp ,  Jens Scheidel ,  Hermann Luyken ,  Michael Bartsch ,  Robert Baumann ,  Gerd Haderlein

    发明人： Tim Jungkamp ,  Jens Scheidel ,  Hermann Luyken ,  Michael Bartsch ,  Robert Baumann ,  Gerd Haderlein

    IPC分类号： C01B9/02

    CPC分类号： C01G9/04 ,  B01D3/36 ,  F26B5/005 ,  F26B7/00

    摘要： A process for the removal of water from a mixture comprising water and zinc chloride, which comprises adding to said mixture comprising water and zinc chloride an aprotic, polar diluent whose boiling point in the case where an azeotrope is not formed between said diluent and water under the pressure conditions of the distillation mentioned below is higher than the boiling point of water and which is in liquid form at this boiling point of water or which forms an azeotrope or heteroazeotrope with water under the pressure and temperature conditions of the distillation mentioned below, and distilling the mixture comprising water, zinc chloride and the diluent with removal of water or said azeotrope or said heteroazeotrope from this mixture, giving an anhydrous mixture comprising zinc chloride and said diluent.

    摘要翻译： 一种用于从包含水和氯化锌的混合物中除去水的方法，其包括向包含水和氯化锌的所述混合物中加入非质子极性稀释剂，其中在所述稀释剂和水之间未形成共沸物的情况下为沸点 下述蒸馏的压力条件高于水的沸点，并且在该沸点沸点下为液体形式，或者在下述蒸馏的压力和温度条件下与水形成共沸物或杂合物，并且 从该混合物中除去包含水，氯化锌和稀释剂的混合物，除去水或所述共沸物或所述杂共聚物，得到包含氯化锌和所述稀释剂的无水混合物。