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    • 2. 发明授权
    • Method for producing hexamethylene diamine
    • 六亚甲基二胺的制备方法
    • US06359178B1
    • 2002-03-19
    • US09762798
    • 2001-02-13
    • Rolf FischerPeter BasslerHermann LuykenFrank OhlbachJohann-Peter MelderMartin MergerAndreas AnsmannAlwin RehfingerGuido Voit
    • Rolf FischerPeter BasslerHermann LuykenFrank OhlbachJohann-Peter MelderMartin MergerAndreas AnsmannAlwin RehfingerGuido Voit
    • C07C20948
    • C07C209/48C07C211/12
    • A process for catalytic hydrogenation of adiponitrile to hexamethylenediamine at elevated temperature and elevated pressure in the presence of catalysts based on elemental iron as catalytically active component and ammonia as solvent comprises a) hydrogenating adiponitrile at from 70 to 220° C. and from 100 to 400 bar in the presence of catalysts based on elemental iron as catalytically active component and ammonia as solvent to obtain a mixture comprising adiponitrile, 6-aminocapronitrile, hexamethylenediamine and high boilers until the sum total of the 6-aminocapronitrile concentration and the adiponitrile concentration is within the range from 1 to 50% by weight, based on the ammonia-free hydrogenation mixture, b) removing ammonia from the hydrogenation effluent, c) removing hexamethylenediamine from the remaining mixture, d) separating 6-aminocapronitrile and adiponitrile from high boilers individually or together, and e) returning 6-aminocapronitrile, adiponitrile or mixtures thereof into step a).
    • 在基于作为催化活性组分的元素铁和作为溶剂的氨的催化剂存在下,在升高的温度和升高的压力下将己二腈催化氢化为己二胺的方法包括在70-220℃和100-400巴下氢化己二腈 在基于作为催化活性成分的元素铁和作为溶剂的氨的催化剂存在下,得到包含己二腈,6-氨基己腈,六亚甲基二胺和高沸点剂的混合物,直到6-氨基己腈浓度和己二腈浓度的总和在范围内 基于无氨氢化混合物,从1至50重量%,b)从氢化流出物中除去氨,c)从剩余的混合物中除去六亚甲基二胺,d)分别或一起从高锅炉中分离6-氨基己腈和己二腈, 和),返回6-氨基己腈,己二腈或其混合物 n步骤a)。
    • 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。