Catalysts suitable for preparing aliphatic alpha-, omega-aminonitriles
by partial hydrogenation of aliphatic dinitriles
    31.
    发明授权
    Catalysts suitable for preparing aliphatic alpha-, omega-aminonitriles by partial hydrogenation of aliphatic dinitriles 失效
    适用于通过脂肪族二腈的部分氢化制备脂族α,ω-氨基腈的催化剂

    公开(公告)号:US6110856A

    公开(公告)日:2000-08-29

    申请号:US214520

    申请日:1999-01-07

    CPC classification number: C07C253/30

    Abstract: A catalyst suitable for preparing aliphatic alpha, omega-aminonitriles by partial hydrogenation of aliphatic dinitriles comprises(a) metallic cobalt, a cobalt compound or a mixture thereof, the proportion of metallic cobalt based on (a) being from 20 to 100% by weight,(b) from 10 to 70% by weight, based on (a), of metallic iron, iron oxide, a further iron compound or a mixture thereof, the proportion of iron oxide based on (b) being from 20 to 100% by weight,(c) from 0 to 1% by weight, based on (a), of a compound based on an alkali metal, an alkaline earth metal or zinc.

    Abstract translation: PCT PCT / EP97 / 04547。 一九九九年一月七日 102(e)1999年1月7日PCT PCT 1997年8月21日PCT公布。 公开号WO98 / 11058 1998年3月19日,适用于通过部分氢化脂族二腈制备脂族α,ω-氨基腈的催化剂包括(a)金属钴,钴化合物或其混合物,基于(a)的金属钴的比例为20 至(b)10〜70重量%,基于(a)金属铁,氧化铁,其他铁化合物或其混合物,基于(b)的氧化铁的比例为 20〜100重量%,(c)0〜1重量%,基于(a)的碱金属,碱土金属或锌的化合物。

    Preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine having a
cis/trans isomer ratio of at least 70:30
    33.
    发明授权
    Preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine having a cis/trans isomer ratio of at least 70:30 有权
    具有顺式/反式异构体比例为70:30以上的3-氨基甲基-3,5,5-三甲基环己胺的制备

    公开(公告)号:US6022999A

    公开(公告)日:2000-02-08

    申请号:US207623

    申请日:1998-12-09

    CPC classification number: C07C209/26 C07C209/48 C07C209/52

    Abstract: A process for the preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine having a cis/trans isomer ratio of at least 70:30 bya) imination of 3-cyano-3,5,5-trimethylcyclohexanone with ammonia in the presence of an imination catalyst at temperatures of from 20.degree. to 150.degree. C. and pressures of from 1.5 to 30 MPa to form 3-cyano-3,5,5-trimethylcyclo-hexanone imine followed byb) hydrogenation of the 3-cyano-3,5,5-trimethylcyclohexanone imine in the presence of ammonia over a catalyst containing copper and/or a Group VIII metal at a temperature of from 80.degree. to 160.degree. C. and under a pressure of from 5 to 30 MPa,wherein the catalytic hydrogenation of the 3-cyano-3,5,5-trimethylcyclohexanone imine is carried out in the presence of an acid used in an amount such as to give an acid number of from 0.1 to 2, based on 3-cyano-3,5,5-trimethylcyclohexanone used.

    Abstract translation: 一种制备顺式/反式异构体比例至少为70:30的3-氨基甲基-3,5,5-三甲基环己胺的制备方法,通过以下步骤:a)将3-氰基-3,5,5-三甲基环己酮与氨在 在20至150℃的温度和1.5至30MPa的压力下存在仿制催化剂以形成3-氰基-3,5,5-三甲基环己酮亚胺,随后b)氢化3-氰基 -3,5,5-三甲基环己酮亚胺在含有铜和/或Ⅷ族金属的催化剂的存在下在80至160℃的温度和5至30MPa的压力下进行,其中 3-氰基-3,5,5-三甲基环己酮亚胺的催化氢化在酸的存在下进行,所用酸的用量使得酸值为0.1-2,基于3-氰基-3 ,使用5,5-三甲基环己酮。

    Method for producing phthalic anhydride
    35.
    发明授权
    Method for producing phthalic anhydride 有权
    邻苯二甲酸酐的制造方法

    公开(公告)号:US06774246B2

    公开(公告)日:2004-08-10

    申请号:US10344517

    申请日:2003-02-12

    CPC classification number: C07C51/265 C07C51/313 C07C63/16

    Abstract: A process for preparing phthalic anhydride by gas-phase oxidation of xylene, naphthalene or mixtures thereof over two different fixed-bed catalysts arranged in zones in a shell-and-tube reactor which is thermostated by means of a heat transfer medium is carried out so that the maximum temperature in the second catalyst zone in the flow direction is at least 52° C. lower than the maximum temperature in the first catalyst zone. The process of the present invention makes it possible to prepare phthalic anhydride in high yields under conditions relevant to industrial practice.

    Abstract translation: 通过在两个不同的固定床催化剂上通过气相氧化二甲苯,萘或其混合物来制备邻苯二甲酸酐的方法,其布置在通过传热介质恒温的壳管式反应器中的区域中,因此进行 第二催化剂区域在流动方向上的最高温度比第一催化剂区域中的最高温度低至少52℃。本发明的方法使得有可能在相关条件下以高产率制备邻苯二甲酸酐 到工业实践。

    Method for producing aliphatic alpha, omega-amino nitriles
    36.
    发明授权
    Method for producing aliphatic alpha, omega-amino nitriles 有权
    生产脂肪族α,ω-氨基腈的方法

    公开(公告)号:US06255521B1

    公开(公告)日:2001-07-03

    申请号:US09508965

    申请日:2000-03-20

    CPC classification number: B01J23/745 C07C253/30 C07C255/24

    Abstract: The invention relates to a method for producing aliphatic alpha-omega amino nitriles in the presence of a catalyst composed of (a) iron or an iron based compound or a mixture thereof (b) 0.01 to 5 wt. %, in relation to (a), a promoter based on 2, 3, 4, or 5 elements selected from the group comprising aluminum, silicon, zirconium, titanium, and vanadium, and © to 0.5 wt. % in relation to (a) a compound based on an alkaline metal or alkaline-earth metal. The inventive method is characterized in that the aliphatic alpha-omega dinitrile contains 1.0 ppm or more phosphorus. Catalysts are obtainable through the reductive and optional successive passivation of magnetite, whereby the catalysts have a BET surface of 3 to 10 m2/g, a total pore volume of 0.05 to 0.2 ml/g, an average pore diameter of 0.03 to 0.1 mm and a pore volume portion in the range of 0.01 to 0.1 mm of 50 to 70%.

    Abstract translation: 本发明涉及在由(a)铁或铁基化合物或其混合物(b)组成的催化剂存在下,生产脂族α-ω氨基腈的方法(b)0.01至5wt。 %,关于(a),基于选自铝,硅,锆,钛和钒的2,3,4或5种元素的促进剂,和(C)至0.5重量% 相对于(a)基于碱金属或碱土金属的化合物的%。 本发明的方法的特征在于脂族α-ω二腈含有1.0ppm或更多的磷。 催化剂可以通过磁铁矿的还原和任选的连续钝化获得,其中催化剂的BET表面积为3至10m 2 / g,总孔体积为0.05至0.2ml / g,平均孔径为0.03至0.1mm, 0.01〜0.1mm的孔体积部分为50〜70%。

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