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    • 51. 发明授权
    • Method for the recycling of a Lewis acid
    • 路易斯酸回收方法
    • US07084294B2
    • 2006-08-01
    • US10520007
    • 2003-07-04
    • Tim JungkampJens ScheidelHermann LuykenMichael BartschRobert BaumannGerd Haderlein
    • Tim JungkampJens ScheidelHermann LuykenMichael BartschRobert BaumannGerd Haderlein
    • C07C253/10
    • B01J31/24B01J27/32B01J31/1845B01J31/4015B01J31/403B01J2231/343C07C253/10Y02P20/584C07C255/07
    • 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.
    • 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。
    • 59. 发明申请
    • Method For Producing 3-Pentenenitrile
    • 生产3-戊烯腈的方法
    • US20080227998A1
    • 2008-09-18
    • US10586007
    • 2005-01-27
    • Jens ScheidelTim JungkampMichael BartschGerd HaderleinRobert BaumannHermann Luyken
    • Jens ScheidelTim JungkampMichael BartschGerd HaderleinRobert BaumannHermann Luyken
    • C07C255/01
    • C07C253/10C07C253/34C07C255/07
    • 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.
    • 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