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    • 7. 发明申请
    • Method for Producing Linear Pentenenitrile
    • 生产线性戊烯腈的方法
    • US20080281120A1
    • 2008-11-13
    • US10586470
    • 2005-01-27
    • Tim JungkampRobert BaumannMichael BartschGerd HaderleinHermann LuykenJens ScheidelTobias AechtnerPeter PfabPetra DeckertWolfgang SiegelPeter Bassler
    • Tim JungkampRobert BaumannMichael BartschGerd HaderleinHermann LuykenJens ScheidelTobias AechtnerPeter PfabPetra DeckertWolfgang SiegelPeter Bassler
    • C07C255/00
    • C07C253/30C07C253/10Y02P20/582C07C255/07
    • A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) isomerizing a reactant stream which comprises 2-methyl-3-butenenitrile over at least one dissolved or dispersed isomerization catalyst to give a stream 1 which comprises the at least one isomerization catalyst, 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, (b) distilling stream 1 to obtain a stream 2 as the top product which comprises 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, and a stream 3 as the bottom product which comprises the at least one isomerization catalyst, (c) distilling stream 2 to obtain a stream 4 as the top product which, compared to stream 2, is enriched in (Z)-2-methyl-2-butenenitrile, based on the sum of all pentenenitriles in stream 2, and a stream 5 as the bottom product which, compared to stream 2, is enriched in 3-pentenenitrile and 2-methyl-3-butenenitrile, based on the sum of all pentenenitriles in stream 2, (d) distilling stream 5 to obtain a stream 6 as the bottom product which comprises 3-pentenenitrile and a stream 7 as the top product which comprises 2-methyl-3-butenenitrile.
    • 描述了制备3-戊烯腈的方法,其特征在于以下方法步骤:(a)在至少一种溶解或分散的异构化催化剂上异构化包含2-甲基-3-丁烯腈的反应物流,得到流1,其包含 至少一种异构化催化剂,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,得到作为顶部产物的物流2,其包含2-甲基 -3-丁烯腈,3-戊烯腈和(Z)-2-甲基-2-丁烯腈,以及作为底部产物的料流3,其包含至少一种异构化催化剂,(c)蒸馏物流2以获得物流4, 与流2相比,基于流2中的所有五烯丙烯的总和和作为底部产物的流5,与流2相比富含(Z)-2-甲基-2-丁烯腈的顶部产物与流2相比较 ,富含3-戊烯腈和2-甲基-3-丁烯腈,基于所有pentenenit (d)蒸馏流5以获得作为底部产物的料流6,其包含3-戊烯腈和作为顶部产物的料流7,其包含2-甲基-3-丁烯腈。
    • 10. 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。