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    • 1. 发明授权
    • Method for reducing the content of an unsaturated amine in a mixture containing an amine and a nitrile
    • 减少含有胺和腈的混合物中不饱和胺含量的方法
    • US06828457B2
    • 2004-12-07
    • US10432385
    • 2003-05-21
    • Frank OhlbachChristoph BenischHermann LuykenAndreas AnsmannRolf-Hartmuth FischerJohann-Peter MelderPeter BasslerStefan Maixner
    • Frank OhlbachChristoph BenischHermann LuykenAndreas AnsmannRolf-Hartmuth FischerJohann-Peter MelderPeter BasslerStefan Maixner
    • C07C25334
    • C07C209/84C07C253/34
    • A process is provided for reducing the content of a monounsaturated aliphatic amine (III) in a mixture (IV) containing an aminonitrile (I) or a diamine (II), or mixtures thereof, and the amine (III), wherein a) the mixture (IV) is reacted with an anionic nucleophile (V),  which contains a nucleophilic atom selected from the group comprising oxygen, nitrogen and sulfur,  which is capable of taking up an H+ ion to form an acid with a pKa ranging from 7 to 11, measured in water at 25° C., and  which has a relative nucleophilicity, measured in methyl perchlorate/methanol at 25° C.,  ranging from 3.4 to 4.7 when oxygen is the nucleophilic atom,  ranging from 4.5 to 5.8 when nitrogen is the nucleophilic atom, and  ranging from 5.5 to 6.8 when sulfur is the nucleophilic atom,  in an amount ranging from 0.01 to 10 mol per mole of amine (III) in the mixture (IV), to give a mixture (VI), and b) the aminonitrile (I) or the diamine (II), or mixtures thereof, are distilled from the mixture (VI) at a temperature ranging from 50 to 170° C. and a pressure ranging from 0.5 to 100 kPa.
    • 提供了一种降低含有氨基腈(I)或二胺(II)或其混合物的混合物(IV)中的单不饱和脂族胺(III)和胺(III)的含量的方法,其中a)混合物 (IV)与阴离子亲核试剂(V)反应,所述阴离子亲核试剂(V)含有选自氧,氮和硫的亲核原子,其能够吸收H +离子以形成pKa范围从 7至11,在25℃的水中测量,并且当氧是亲核原子时,在25℃的甲基高氯酸甲酯/甲醇中测量的范围为3.4至4.7,当氮气为4.5至5.8时,其具有相对的亲核性 是亲核原子,当硫是亲核原子时,其摩尔数为5.5至6.8,其量为每摩尔混合物(IV)中的胺(III)为0.01至10摩尔,得到混合物(Ⅵ),和b) 氨基腈(I)或二胺(II)或其混合物在温度下从混合物(VI)中蒸馏出 e范围为50至170℃,压力范围为0.5至100kPa。
    • 3. 发明申请
    • Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof
    • 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
    • US20050222449A1
    • 2005-10-06
    • US10515281
    • 2003-05-21
    • Stefan MaixnerChristoph BenischHermann LuykenPeter BasslerRolf-Hartmuth FischerJohann-Peter MelderAndreas Ansmann
    • Stefan MaixnerChristoph BenischHermann LuykenPeter BasslerRolf-Hartmuth FischerJohann-Peter MelderAndreas Ansmann
    • C07C209/84C07C211/09C07C211/12C07C253/34C07C255/09C07C255/24
    • C07C253/34C07C255/24
    • 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 amine (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).
    • 含有氨基腈(I)或二胺(II)或二腈(III)或其混合物以及所述胺(IV)的混合物(V)中的脂肪族单不饱和胺(IV)的水平以及所述胺(IV) a)使所述混合物(V)与含有选自氧,氮和硫的亲核原子的阴离子亲核试剂(VI)反应,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。