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    Improved process for the hydrogenation of maleic acid to 1,4-butanediol
    2.
    发明公开
    Improved process for the hydrogenation of maleic acid to 1,4-butanediol 失效
    对于马来酸酐的加氢的改进方法，以1,4-丁二醇

    公开(公告)号：EP0722923A2

    公开(公告)日：1996-07-24

    申请号：EP95306409.4

    申请日：1995-09-13

    Applicant: THE STANDARD OIL COMPANY

    Inventor： Attig, Thomas G. ,  Budge, John R. ,  Pedersen, Erik S.

    IPC: C07C29/149 ,  C07D307/08 ,  C07C31/20 ,  B01J23/68

    CPC classification number: C07D307/08 ,  B01J23/6567 ,  C07C29/177 ,  C07C31/207

    Abstract: Maleic acid, maleic anhydride or other hydrogenatable precursor are catalytically hydrogenated to 1,4-butanediol and tetrahydrofuran. It has been discovered that high yields of 1,4-butanediol are achieved when the hydrogenation catalyst comprises palladium, silver and rhenium on a carbon support and is prepared by the steps of

    (i) impregnating a carbon support with a source of palladium, silver and rhenium, wherein the source of palladium, silver and rhenium is at least one solution,
    (ii) after each impregnation step, drying the impregnated carbon support to remove solvent,
    (iii) heating the impregnated carbon support at a temperature of about 120°C to about 350°C under reducing conditions.
    The palladium in the catalyst is present in the form of crystallites having a particle size of less than 10 nm.

    Abstract translation: Prodn。 四氢呋喃（THF）和1,4-丁二醇（BDO）的，contg。 BDO的主要部分，包括在H2-contg与接触的氢化前体的催化氢化。 气和碳负载的Pd，Ag和重新contg。 催化剂加氢prepd。 通过：1）浸渍Pd，Ag和RE，在一个或多个步骤的C源的支持，使用至少一个SOLN。 的金属源; ii）干燥经浸渍的载体，除去每个浸渍步骤之后溶剂; ⅲ）在还原条件下加热在100-350℃温度的浸渍过的载体。

    Improved process for the hydrogenation of maleic acid to 1,4-butanediol
    4.
    发明公开
    Improved process for the hydrogenation of maleic acid to 1,4-butanediol 失效
    改进的马来酸氢化为1,4-丁二醇的方法

    公开(公告)号：EP0722923A3

    公开(公告)日：1996-08-28

    申请号：EP95306409.4

    申请日：1995-09-13

    Applicant: THE STANDARD OIL COMPANY

    Inventor： Attig, Thomas G. ,  Budge, John R. ,  Pedersen, Erik S.

    IPC: C07C29/149 ,  C07D307/08 ,  C07C31/20 ,  B01J23/68

    CPC classification number: C07D307/08 ,  B01J23/6567 ,  C07C29/177 ,  C07C31/207

    Abstract: Maleic acid, maleic anhydride or other hydrogenatable precursor are catalytically hydrogenated to 1,4-butanediol and tetrahydrofuran. It has been discovered that high yields of 1,4-butanediol are achieved when the hydrogenation catalyst comprises palladium, silver and rhenium on a carbon support and is prepared by the steps of
    (i) impregnating a carbon support with a source of palladium, silver and rhenium, wherein the source of palladium, silver and rhenium is at least one solution, (ii) after each impregnation step, drying the impregnated carbon support to remove solvent, (iii) heating the impregnated carbon support at a temperature of about 120°C to about 350°C under reducing conditions. The palladium in the catalyst is present in the form of crystallites having a particle size of less than 10 nm.

    Abstract translation: 马来酸，马来酸酐或其他可氢化的前体被催化氢化成1,4-丁二醇和四氢呋喃。 已经发现，当氢化催化剂在碳载体上包含钯，银和铼时，实现了高收率的1,4-丁二醇，并且通过以下步骤制备：（i）用钯源，银 和铼，其中钯，银和铼的来源为至少一种溶液，（ii）在每个浸渍步骤之后，干燥浸渍的碳载体以除去溶剂，（iii）在约120℃的温度下加热浸渍的碳载体 在还原条件下约350℃。 催化剂中的钯以粒径小于10nm的微晶的形式存在。

    Acetonitrile purification via an adsorption-based process
    5.
    发明公开
    Acetonitrile purification via an adsorption-based process 失效
    Verfahren zur Reinigung von Acetonitril durch Adsorptionsverfahren

    公开(公告)号：EP0723954A1

    公开(公告)日：1996-07-31

    申请号：EP95300458.7

    申请日：1995-01-25

    Applicant: THE STANDARD OIL COMPANY

    Inventor： Attig, Thomas G. ,  Cesa, Mark C. ,  Blachman, Marc W.

    IPC: C07C253/34

    CPC classification number: C07C253/34

    Abstract: This invention relates to acetonitrile purification via an adsorption-based process. The process comprises pretreating the acetonitrile containing organic impurities such as unsaturated nitriles with a solid reagent to selectively convert the unsaturated nitriles into products more easily removed and passing the treated acetonitrile through a series of adsorbent beds to remove the resulting products and other impurities present from the acetonitrile.

    Abstract translation: 本发明涉及通过基于吸附的方法的乙腈纯化。 该方法包括用固体试剂预处理含有有机杂质如不饱和腈的乙腈，以选择性地将不饱和腈转化成更容易除去的产物，并使经处理的乙腈通过一系列吸附剂床，以除去所得到的产物和 乙腈。

    Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone
    6.
    发明公开
    Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone 失效
    四氢呋喃和γ-丁内酯的防腐剂。

    公开(公告)号：EP0322140A1

    公开(公告)日：1989-06-28

    申请号：EP88311659.2

    申请日：1988-12-09

    Applicant: THE STANDARD OIL COMPANY

    Inventor： Attig, Thomas G. ,  Budge, John R.

    IPC: C07D307/08 ,  C07D307/32

    CPC classification number: C07D315/00 ,  C07D307/08

    Abstract: Tetrahydrofuran and optionally gamma-butyrolactone are prepared from at least one of maleic anhydride or succinic anhydride by catalytically hydrogenating vaporous maleic anhydride or vaporous succinic anhydride in the presence of hydrogen and a catalyst comprising the mixed oxides of copper, zinc and aluminum.

    Abstract translation: 在氢气和包含铜，锌和铝的混合氧化物的催化剂的存在下，通过催化氢化气态马来酸酐或蒸气性琥珀酸酐，由马来酸酐或琥珀酸酐中的至少一种制备四氢呋喃和任选的γ-丁内酯。

    Catalyst and process for hydrogenation to form 1,4-butane diol
    9.
    发明公开
    Catalyst and process for hydrogenation to form 1,4-butane diol 失效
    Katalysator und Verfahren zur Hydrierung zu 1,4-Butandiol

    公开(公告)号：EP0881203A1

    公开(公告)日：1998-12-02

    申请号：EP97303664.3

    申请日：1997-05-30

    Applicant: THE STANDARD OIL COMPANY

    Inventor： Pedersen, S. Erik ,  Attig, Thomas G. ,  Frye, John G. ,  Budge, John R.

    IPC: C07C29/17 ,  C07C29/149 ,  C07C31/20 ,  C07D307/08 ,  B01J23/656

    CPC classification number: C07C29/177 ,  C07C31/207

    Abstract: A process for the production of 1,4-butanediol comprises catalytically hydrogenating a hydrogenatable precursor therefor in contact with hydrogen-containing gas and a hydrogenation catalyst comprising at least one noble metal of Group VIII of the Periodic Table and at least one of rhenium, tungsten and molybdenum deposited on a carbon support, wherein the carbon support has been contacted with an oxidizing agent selected from the group consisting of nitric acid, hydrogen peroxide, sodium hypochlorite, ammonium persulfate and perchloric acid prior to the deposition of the metals. The above oxidized carbon support is also provided.

    Abstract translation: 用于生产1,4-丁二醇的方法包括催化氢化与含氢气体接触的可氢化前体和包含至少一种元素周期表第VIII族贵金属的氢化催化剂和至少一种铼钨 和沉积在碳载体上的钼，其中在沉积金属之前，碳载体已经与选自硝酸，过氧化氢，次氯酸钠，过硫酸铵和高氯酸的氧化剂接触。 还提供了上述氧化碳载体。

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