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    • 1. 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。
    • 3. 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)。
    • 4. 发明授权
    • Preparation of aliphatic alpha, omega-aminonitriles
    • 脂肪族α,ω-氨基腈的制备
    • US06114567A
    • 2000-09-05
    • US122102
    • 1998-07-24
    • Klemens FlickJohann-Peter MelderWerner SchnurrKlaus EbelTom WitzelWolfgang HarderAlwin RehfingerRolf Fischer
    • Klemens FlickJohann-Peter MelderWerner SchnurrKlaus EbelTom WitzelWolfgang HarderAlwin RehfingerRolf Fischer
    • B01J23/89B01J23/76B01J23/889B01J27/18B01J37/02C07B61/00C07C253/30C07C255/24
    • B01J23/8898B01J23/76B01J23/8892B01J37/0201C07C253/30
    • Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process which comprises using a catalyst which(a) contains a compound based on a metal selected from the group consisting of nickel, cobalt, iron, ruthenium and rhodium and(b) contains from 0.01 to 25% by weight, based on (a), of a promoter based on a metal selected from the group consisting of palladium, platinum, iridium, osmium, copper, silver, gold, chromium, molybdenum, tungsten, manganese, rhenium, zinc, cadmium, lead, aluminum, tin, phosphorus, arsenic, antimony, bismuth and rare earth metals and(c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or on an alkaline earth metal.with the proviso that the component (a) is not based on iron or iron and one of the metals selected from the group consisting of cobalt, ruthenium and rhodium when (b) is a promoter based on a metal selected from the group consisting of titanium, manganese, chromium and molybdenum, and with the further proviso that, when a compound based on only ruthenium or rhodium or ruthenium and rhodium or nickel and rhodium is selected as component (a), the promoter (b) may be dispensed with.
    • 脂肪族α,ω-氨基腈通过脂肪族α,ω-二腈在升高的温度和超大气压下,在溶剂和催化剂存在下通过包括使用(a)含有基于化合物的催化剂 在选自镍,钴,铁,钌和铑的金属上,和(b)含有基于(a)0.01至25重量%的基于选自以下的金属的促进剂: 钯,铂,铱,锇,铜,银,金,铬,钼,钨,锰,铼,锌,镉,铅,铝,锡,磷,砷,锑,铋和稀土金属和(c) 基于(a)的0至5重量%的基于碱金属或碱土金属的化合物。 条件是当(b)是基于选自钛的金属的促进剂时,组分(a)不是基于铁或铁和选自钴,钌和铑的金属之一, ,锰,铬和钼,另外条件是,当选择仅基于钌或铑或钌和铑或镍和铑的化合物作为组分(a)时,可以省略促进剂(b)。