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    Two-stage process for the hydrogenation of maleic acid to 1,4-butanediol
    1.
    发明授权
    Two-stage process for the hydrogenation of maleic acid to 1,4-butanediol 有权
    将马来酸氢化成1,4-丁二醇的两阶段方法

    公开(公告)号：US06989455B2

    公开(公告)日：2006-01-24

    申请号：US10645429

    申请日：2003-08-21

    申请人： Robert P. Hepfer ,  Craig T. Miller ,  Gregory A. Norenberg ,  Thomas G. Attig ,  John R. Budge

    发明人： Robert P. Hepfer ,  Craig T. Miller ,  Gregory A. Norenberg ,  Thomas G. Attig ,  John R. Budge

    IPC分类号： C07D307/02 ,  C07D307/58 ,  C07D307/60 ,  C07D407/00 ,  C07C409/00

    CPC分类号： C07C29/149 ,  C07C31/207

    摘要： In the process for the conversion of maleic acid to gamma-butyrolactone, 1.4-butanediol and/or tetrahydrofuran, a feedstream comprising maleic acid is hydrogenated in a first hydrogenation zone to produce a reaction product comprising succinic acid and unreacted hydrogen which is then supplied to a second hydrogenation zone, where succinic acid is converted to 1,4-butanediol, the temperatures of the feedstream comprising maleic acid and the first hydrogenation zone are controlled such that the temperature of maleic acid in the feedstream and the first hydrogenation zone does not exceed about 130° C., thereby minimizing the corrosive effects of the maleic acid and prolonging reactor life and improving overall process economics.

    摘要翻译： 在将马来酸转化为γ-丁内酯，1,4-丁二醇和/或四氢呋喃的过程中，将包含马来酸的原料流在第一氢化区中氢化以产生包含琥珀酸和未反应的氢的反应产物，然后将其供应至 第二氢化区，其中琥珀酸被转化成1,4-丁二醇，控制包含马来酸和第一氢化区的进料流的温度使得进料流和第一氢化区中马来酸的温度不超过 约130℃，从而最小化马来酸的腐蚀作用并延长反应器寿命并改善整体工艺经济性。

    Two-stage maleic anhydride hydrogenation process for 1,4-butanediol synthesis
    2.
    发明授权
    Two-stage maleic anhydride hydrogenation process for 1,4-butanediol synthesis 失效
    二步马来酸酐加氢法合成1,4-丁二醇

    公开(公告)号：US5196602A

    公开(公告)日：1993-03-23

    申请号：US814644

    申请日：1991-12-30

    申请人： John R. Budge ,  Thomas G. Attig ,  Anne M. Graham

    发明人： John R. Budge ,  Thomas G. Attig ,  Anne M. Graham

    IPC分类号： C07C29/149

    CPC分类号： C07C29/149

    摘要： Maleic anhydride is hydrogenated to produce 1,4-butanediol in a two-stage process. In the first stage maleic anhydride and/or maleic acid contacted with hydrogen at a temperature of about 100.degree. C. to about 350.degree. C. in the presence of a suitable hydrogenation catalyst to produce succinic anhydride and/or gamma-butyrolactone. In the second stage, the succinic anhydride and/or gamma-butyrolactone and hydrogen are contacted at a temperature of about 180.degree. C. to about 350.degree. C. in the presence of a ruthenium-containing hydrogenation catalyst to produce 1,4-butanediol.

    摘要翻译： 将马来酸酐氢化成两步法制备1,4-丁二醇。 在第一阶段中，马来酸酐和/或马来酸在合适的氢化催化剂存在下，在约100℃至约350℃的温度下与氢气接触以产生琥珀酸酐和/或γ-丁内酯。 在第二阶段中，琥珀酸酐和/或γ-丁内酯和氢在约180℃至约350℃的温度下在含钌氢化催化剂的存在下接触以产生1,4-丁二醇 。

    Process for the hydrogenation of maleic acid to 1,4-butanediol
    3.
    发明授权
    Process for the hydrogenation of maleic acid to 1,4-butanediol 失效
    马来酸氢化为1,4-丁二醇的方法

    公开(公告)号：US5473086A

    公开(公告)日：1995-12-05

    申请号：US373666

    申请日：1995-01-17

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

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

    IPC分类号： B01J23/656 ,  B01J23/68 ,  C07B61/00 ,  C07C27/04 ,  C07C29/149 ,  C07C29/17 ,  C07C31/20 ,  C07D307/08 ,  C07D307/02

    CPC分类号： C07D307/08 ,  B01J23/6567 ,  C07C29/177

    摘要： 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.degree. C. to about 350.degree. 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.

    摘要翻译： 将马来酸，马来酸酐或其它可氢化的前体催化氢化成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，银浸渍碳载体 和铼，其中钯，银和铼的来源是至少一种溶液，（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，C至约350℃。 催化剂中的钯以粒径小于10nm的微晶的形式存在。

    Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone
    4.
    发明授权
    Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone 失效
    马来酸酐与四氢呋喃和γ-丁内酯的气相氢化

    公开(公告)号：US4965378A

    公开(公告)日：1990-10-23

    申请号：US370925

    申请日：1989-06-23

    申请人： John R. Budge ,  Thomas G. Attig

    发明人： John R. Budge ,  Thomas G. Attig

    IPC分类号： C07D307/08 ,  C07D315/00

    CPC分类号： C07D315/00 ,  C07D307/08

    摘要： 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.

    摘要翻译： 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。

    Catalysts for the hydrogenation of aqueous maleic acid to 1,4-butanediol
    5.
    发明授权
    Catalysts for the hydrogenation of aqueous maleic acid to 1,4-butanediol 失效
    用于将马来酸水溶液氢化成1,4-丁二醇的催化剂

    公开(公告)号：US5698749A

    公开(公告)日：1997-12-16

    申请号：US524195

    申请日：1995-09-06

    申请人： S. Erik Pedersen ,  John G. Frye, Jr. ,  Thomas G. Attig ,  John R. Budge

    发明人： S. Erik Pedersen ,  John G. Frye, Jr. ,  Thomas G. Attig ,  John R. Budge

    IPC分类号： B01J23/656 ,  C07C29/149 ,  C07C29/156 ,  C07C29/17 ,  C07C31/20 ,  C07D307/08

    CPC分类号： C07C29/177

    摘要： 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 at least one noble metal of Group VIII of the Periodic Table and at least one of rhenium, tungsten or molybdenum on a carbon support wherein the carbon support has been contacted with an oxidizing agent prior to the deposition of the metals. This hydrogenation catalyst is prepared by the steps of (i) oxidizing the carbon support by contacting the carbon support with an oxidizing agent, (ii) impregnating in one or more impregnation steps comprising contacting the carbon support with a source of Group VIII metal and at least one metal selected from the group consisting of rhenium, tungsten and molybdenum being in at least one solution, (iii) after each impregnation step, drying at a temperature under about 150.degree. C. the impregnated carbon support to remove solvent, (iv) heating the impregnated carbon support at a temperature of about 100.degree. C. to about 350.degree. C. under reducing conditions.

    摘要翻译： 将马来酸，马来酸酐或其它可氢化的前体催化氢化成1,4-丁二醇和四氢呋喃。 已经发现，当氢化催化剂包含至少一种元素周期表第VIII族的贵金属和碳载体上的铼，钨或钼中的至少一种时，可实现高收率的1,4-丁二醇，其中碳载体 在金属沉积之前已经与氧化剂接触。 该加氢催化剂是通过以下步骤制备的：（i）通过使碳载体与氧化剂接触来氧化碳载体，（ii）在一个或多个浸渍步骤中浸渍，包括使碳载体与VIII族金属源接触， 选自铼，钨和钼中的至少一种金属在至少一种溶液中，（iii）在每个浸渍步骤之后，在约150℃的温度下干燥浸渍的碳载体以除去溶剂，（iv） 在还原条件下，在约100℃至约350℃的温度下加热浸渍的碳载体。

    Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone
    6.
    发明授权
    Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone 失效
    马来酸酐与四氢呋喃和γ-丁内酯的气相氢化

    公开(公告)号：US5072009A

    公开(公告)日：1991-12-10

    申请号：US575093

    申请日：1990-08-30

    申请人： John R. Budge ,  Thomas G. Attig

    发明人： John R. Budge ,  Thomas G. Attig

    IPC分类号： C07D307/08 ,  C07D315/00

    CPC分类号： C07D315/00 ,  C07D307/08

    摘要： Tetrahydrofuran and optionally gamma-butyrolactone are prepared from at least one of maleic anhydride or succinic anhydride in the absence of alcohols 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.

    摘要翻译： 四氢呋喃和任选的γ-丁内酯由不存在醇的马来酸酐或琥珀酸酐中的至少一种通过在氢存在下催化氢化气态马来酸酐或蒸气性琥珀酸酐而制备，所述催化剂包含铜，锌和 铝。

    Hydrogenation of maleic anhydride to tetrahydrofuran
    10.
    发明授权
    Hydrogenation of maleic anhydride to tetrahydrofuran 失效
    马来酸酐氢化成四氢呋喃

    公开(公告)号：US4810807A

    公开(公告)日：1989-03-07

    申请号：US214788

    申请日：1988-07-05

    申请人： John R. Budge ,  S. Erik Pedersen

    发明人： John R. Budge ,  S. Erik Pedersen

    IPC分类号： B01J23/76 ,  B01J23/80 ,  B01J23/89 ,  C07D307/08

    CPC分类号： C07D307/08 ,  B01J23/76 ,  B01J23/80 ,  B01J23/8953

    摘要： A continuous process for the preparation of tetrahydrofuran comprises, in a single-stage process, catalytically hydrogenating the solution which results when at least one of maleic anhydride or succinic anhydride is dissolved in a monohydric aliphatic alcohol in the presence of hydrogen and a catalyst comprising the mixed oxides of copper, zinc and aluminum.

    摘要翻译： 用于制备四氢呋喃的连续方法包括在单阶段方法中催化氢化当在氢存在下将马来酸酐或琥珀酸酐中的至少一种溶解在一元脂肪醇中时产生的溶液，所述催化剂包含 铜，锌和铝的混合氧化物。