会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Simultaneous preparation of caprolactam and hexamethylenediamine
    • 同时制备己内酰胺和己二胺
    • US5717090A
    • 1998-02-10
    • US565214
    • 1995-11-30
    • Peter BasslerHermann LuykenGunther AchhammerTom WitzelEberhard FuchsRolf FischerWerner Schnurr
    • Peter BasslerHermann LuykenGunther AchhammerTom WitzelEberhard FuchsRolf FischerWerner Schnurr
    • C07D201/08
    • C07D201/08
    • Caprolactam and hexamethylenediamine are prepared simultaneously starting from adiponitrile by a process in which (a) adiponitrile is partially hydrogenated to give a mixture containing essentially 6-aminocapronitrile, hexamethylenediamine, ammonia, adiponitrile and hexamethyleneimine, (b) the mixture obtained in (a) is subjected to a distillation to give ammonia as the top product and a bottom product I, (c) the bottom product I containing essentially 6-aminocapronitrile, hexamethylenediamine, adiponitrile, hexamethyleneimine, inert compound A and ammonia, the ammonia content being lower than that of the mixture used in stage (b), is subjected to a second distillation to give a mixture comprising the inert compound A and ammonia as the top product and a bottom product II, (d) the bottom product II is subjected, in a third column, to a distillation to give the inert compound A as the top product and a bottom product III, (e) the bottom product III is subjected, in a fourth column, to a distillation to give a top product KP1, containing essentially hexamethyleneimine and a bottom product IV, (f) the top product KP1 is subjected, in a fifth column, to a distillation to give a top product KP2, which contains essentially hexamethyleneimine, and (g) the bottom product IV containing essentially 6-aminocapronitrile and adiponitrile is subjected, in a sixth column, to a distillation to give 6-aminocapronitrile, and the 6-aminocapronitrile thus obtained is then cyclized to give caprolactam.
    • 己二醇和六亚甲基二胺由己二腈通过以下方法同时制备,其中(a)己二腈部分氢化得到基本上含有6-氨基己腈,六亚甲基二胺,氨,己二腈和六亚甲基亚胺的混合物,(b)将(a)中得到的混合物 进行蒸馏以产生氨作为顶部产物,底部产物I,(c)含有基本上为6-氨基己腈,六亚甲基二胺,己二腈,六亚甲基亚胺,惰性化合物A和氨的底部产物I,氨含量低于 将阶段(b)中使用的混合物进行第二次蒸馏,得到包含惰性化合物A和氨作为顶部产物的混合物和底部产物II,(d)底部产物II经受第三塔 进行蒸馏,得到惰性化合物A作为顶部产物和底部产物III,(e)底部产物III在第四列中经受 蒸馏得到基本上为六亚甲基亚胺和底部产物IV的顶部产物KP1,(f)顶部产物KP1在第五个塔中进行蒸馏,得到基本上含有六亚甲基亚胺的顶部产物KP2,和(g )将含有基本上6-氨基己腈和己二腈的底部产物IV在第六塔中进行蒸馏以得到6-氨基己腈,然后将所得的6-氨基己腈环化,得到己内酰胺。
    • 3. 发明授权
    • Process for continuous purification of crude caprolactam prepared from
6-aminocapronitrile
    • 从6-氨基己腈制备的己内酰胺的连续纯化方法
    • US5496941A
    • 1996-03-05
    • US375410
    • 1995-01-18
    • Josef RitzRolf FischerWerner SchnurrGu/ nther AchhammerHermann LuykenEberhard Fuchs
    • Josef RitzRolf FischerWerner SchnurrGu/ nther AchhammerHermann LuykenEberhard Fuchs
    • C07D201/08C07D201/16
    • C07D201/16Y02P20/52
    • Crude capronitrile is purified by hydrogenation, subsequent treatment in an acidic medium and subsequent distillation in an alkaline medium, by a process in which(a) 6-aminocapronitrile is converted into crude caprolactam by reaction with water,(b) high boilers and low boilers are separated off from the crude caprolactam from step (a),(c) the crude caprolactam from step (b) is treated with hydrogen at from 50.degree. to 150.degree. C. and from 1.5 to 250 bar in the presence of a hydrogenation catalyst and, if desired, of a solvent to give a mixture A,(d1) mixture A in a solvent is passed, at from 30.degree. to 80.degree. C. and from 1 to 5 bar, over an ion exchanger containing terminal acid groups to give a mixture B1, or(d2) mixture A is distilled in the presence of sulfuric acid, any solvent present being removed before the addition of the sulfuric acid, to give a mixture B2, and(e) mixture B1 or mixture B2 is distilled in the presence of a base to give pure caprolactam.
    • 通过氢化纯化粗碳腈,随后在酸性介质中处理,随后在碱性介质中进行蒸馏,其中(a)通过与水反应将(a)6-氨基己腈转化为粗己内酰胺,(b)高锅炉和低锅炉 与步骤(a)中的粗己内酰胺分离,(c)步骤(b)中的粗己内酰胺在氢化催化剂存在下在50-150℃和1.5-250巴下用氢处理 并且如果需要,得到溶剂以得到混合物A,(d1)溶剂中的混合物A在30℃至80℃和1至5巴条件下通过含有末端酸基团的离子交换剂 得到混合物B1,或(d2)在硫酸存在下蒸馏混合物A,在加入硫酸之前,除去存在的任何溶剂,得到混合物B2,并且(e)蒸馏出混合物B1或混合物B2 在碱的存在下得到纯己内酰胺。
    • 6. 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)。