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    • 5. 发明授权
    • Method for producing propylene oxide
    • 生产环氧丙烷的方法
    • US06881853B2
    • 2005-04-19
    • US10484204
    • 2002-07-18
    • Joaquim Henrique TelesAlwin RehfingerAnne BergPeter RudolfNorbert RieberPeter Bassler
    • Joaquim Henrique TelesAlwin RehfingerAnne BergPeter RudolfNorbert RieberPeter Bassler
    • C07D301/12
    • C07D301/12Y02P20/582
    • A process for preparing propylene oxide comprises at least the following steps: (a) propene is reacted with a hydroperoxide in a solvent in the presence of a zeolite catalyst to give a mixture (M0), where the mixture (M0) comprises propylene oxide, solvent, unreacted propene, unreacted hydroperoxide and oxygen, (b) the propylene oxide is separated from the mixture (M0) so as to give a mixture (M1) which comprises unreacted propene and oxygen, (c) the mixture (M1) is brought into contact with a liquid medium comprising at least a solvent to give the mixtures (M2) and (M3), where the mixture (M3) comprises part of the unreacted propene and oxygen and the mixture (M2) comprises solvent and residual propene, and  the mixture (M3) which has been separated off and comprises unreacted propene and oxygen has a ratio of oxygen to propene such that the mixture (M3) is not ignitable, and  the mixture (M2) is fed to at least one reaction of propene with hydroperoxide.
    • 制备环氧丙烷的方法至少包括以下步骤:(a)在沸石催化剂存在下,使丙烯与溶剂中的氢过氧化物反应得到混合物(M 0),其中混合物(M 0)包含丙烯 氧化物,溶剂,未反应的丙烯,未反应的氢过氧化物和氧气,(b)将环氧丙烷与混合物(M 0)分离,得到包含未反应的丙烯和氧的混合物(M 1),(c)混合物 M 1)与包含至少一种溶剂的液体介质接触以得到混合物(M 2)和(M 3),其中混合物(M 3)包含部分未反应的丙烯和氧气以及混合物(M 2)包括溶剂和残余丙烯,并且已经分离并包含未反应的丙烯和氧的混合物(M 3)具有氧与丙烯的比例,使得混合物(M 3)不可燃,并且混合物(M 2)进料至丙烯与氢过氧化物的至少一个反应。
    • 7. 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)。