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    Separation of 1,4-butanediol from hydrogenation mixtures
    1.
    发明授权
    Separation of 1,4-butanediol from hydrogenation mixtures 失效
    从氢化混合物中分离出1,4-丁二醇

    公开(公告)号：US5342488A

    公开(公告)日：1994-08-30

    申请号：US18496

    申请日：1993-02-17

    申请人： Hans-Juergen Gosch ,  Harald Rust ,  Rolf Fischer ,  Claus Hechler ,  Rolf Pinkos

    发明人： Hans-Juergen Gosch ,  Harald Rust ,  Rolf Fischer ,  Claus Hechler ,  Rolf Pinkos

    IPC分类号： C07C29/80 ,  C07C29/82 ,  C07C31/20 ,  B01D3/00 ,  C07C27/00

    CPC分类号： C07C29/80 ,  Y10S203/20

    摘要： A process for the separation of 1,4-butanediol from mixtures obtained by the catalytic hydrogenation of maleates, fumarates, and/or succinates, which also contain tetrahydrofuran, water, C.sub.1 -C.sub.4 alcohols, succinic diesters, hydroxybutyrates, alkylhydroxyalkyl succinates, gamma-butyrolactone and butyrates, in addition to 1,4-butanediol, comprising the following steps:a) separating, in a first column having an actual number of plates of from 20 to 70 and operated at a top pressure of from 50 to 1100 mbar and preferably from 50 to 500 mbar and a top temperature of from 40.degree. to 120.degree. C., alcohol, water and tetrahydrofuran, as overhead product,b) feeding the bottom product of the first column into a second column having an actual number of plates of from 30 to 90 and withdrawing the overhead product consisting of alcohol and butyrate and obtained at a top pressure of from 45 to 250 mbar and a top temperature of from 45.degree. to 120.degree. C., and withdrawing gamma-butyrolactone and butyrates through a side outlet, and feeding the bottom product to a phase separator,c) feeding the 1,4-butanediol-enriched bottom phase of the liquid two-phase mixture coming from the phase separator to a third column having an actual number of plates of from 30 to 90, alcohol being distilled off as overhead product at a top pressure of from 45 to 250 mbar and a top temperature of from 45.degree. to 120.degree. C., and the azeotrope comprising 1,4 -butanediol and succinic diester is withdrawn as a sidestream and recycled to the phase separator, whilst 1,4-butanediol is removed together with alkyl-hydroxyalkyl succinate, butyl hydroxybutyrate, and high-boiling fractions as bottoms, andd) separating the succinate-enriched top phase in the phase separator.

    摘要翻译： 还含有四氢呋喃，水，C 1 -C 4醇，琥珀酸二酯，羟基丁酸酯，琥珀酸烷基羟基烷基酯，γ-丁内酯和/或琥珀酸酯的马来酸盐，富马酸盐和/或琥珀酸盐的催化氢化得到的混合物的分离方法， 丁内酯和丁酸酯除了1,4-丁二醇外还包括以下步骤：a）在具有20至70的实际板数的第一塔中分离并在50至1100毫巴的最高压力下操作，以及 优选为50至500毫巴，顶部温度为40至120℃，醇，水和四氢呋喃作为塔顶产物，b）将第一塔的底部产物进料到具有实际数量的板的第二塔 30至90份，并取出由醇和丁酸盐组成的塔顶产物，并在顶部压力为45至250毫巴，顶部温度为45至120℃下获得，并将γ-丁内酯和丁酸酯 通过侧出口将底部产物供给到相分离器中，c）将来自相分离器的液体两相混合物的富含1,4-丁二醇的底相进料到具有实际数量的板的第三塔 为30至90，在顶部压力为45至250毫巴，顶部温度为45至120℃的条件下，蒸馏出作为塔顶产物的醇，由1,4-丁二醇和琥珀酸二酯组成的共沸物为 作为侧流回收并循环到相分离器中，而1,4-丁二醇与琥珀酸烷基 - 羟基烷基酯，羟基丁酸丁酯和作为塔底产物的高沸点馏分一起除去，以及d）在相中分离富含琥珀酸酯的顶相 分隔器。

    Preparation of 1,4-butanediol
    2.
    发明授权
    Preparation of 1,4-butanediol 失效
    1,4-丁二醇的制备

    公开(公告)号：US5073650A

    公开(公告)日：1991-12-17

    申请号：US672671

    申请日：1991-03-20

    申请人： Uwe Stabel ,  Hans-Juergen Gosch ,  Rolf Fischer ,  Wolfgang Harder ,  Claus Hechler

    发明人： Uwe Stabel ,  Hans-Juergen Gosch ,  Rolf Fischer ,  Wolfgang Harder ,  Claus Hechler

    IPC分类号： B01J23/889 ,  B01J23/75 ,  C07B61/00 ,  C07C29/149 ,  C07C29/17 ,  C07C31/20

    CPC分类号： C07C29/177

    摘要： A process for the preparation of 1,4-butanediol by catalytically hydrogenating maleic anhydride in the presence of an alcohol, at elevated temperature and elevated pressure and with the aid of a cobalt-containing catalyst comprises partially hydrogenating the reaction mixture in a first hydrogenation step at from 100.degree. to 200.degree. C. and at from 30 to 200 bar and subsequently post-hydrogenating the product of this first hydrogenation step, without further work-up at higher temperature and pressure than in the first hydrogenation step, in a second hydrogenation step at from 200.degree. to 300.degree. C. and at from 200 to 350 bar.

    摘要翻译： 通过在醇的存在下，在升高的温度和升高的压力下并借助含钴催化剂催化氢化马来酸酐来制备1,4-丁二醇的方法包括在第一氢化步骤中部分氢化反应混合物 在100至200℃和30至200巴条件下，随后在第二加氢步骤中将第一氢化步骤的产物后氢化，而不需要在比第一加氢步骤更高的温度和压力下进一步处理。 步骤为200〜300℃，200〜350巴。

    Preparation of (meth)acrolein and/or (meth)acrylic acid by heterogeneously catalyzed partial oxidation of C3 and/or C4 precursor compounds in a reactor having thermoplate modules
    9.
    发明授权
    Preparation of (meth)acrolein and/or (meth)acrylic acid by heterogeneously catalyzed partial oxidation of C3 and/or C4 precursor compounds in a reactor having thermoplate modules 有权
    在具有热电板模块的反应器中通过C3和/或C4前体化合物的非均相催化部分氧化制备（甲基）丙烯醛和/或（甲基）丙烯酸

    公开(公告)号：US07268254B2

    公开(公告)日：2007-09-11

    申请号：US10889081

    申请日：2004-07-13

    申请人： Gerhard Olbert ,  Claus Hechler

    发明人： Gerhard Olbert ,  Claus Hechler

    IPC分类号： C07C57/02 ,  C07C45/00

    CPC分类号： C07C51/215 ,  B01J19/249 ,  B01J2208/0015 ,  B01J2219/2453 ,  B01J2219/2458 ,  B01J2219/2459 ,  B01J2219/2462 ,  B01J2219/2474 ,  B01J2219/2481 ,  B01J2219/2486 ,  B01J2219/2493 ,  B01J2219/2495 ,  B01J2219/2496 ,  B01J2219/2497 ,  B01J2219/2498 ,  C07C45/35 ,  C07C51/252 ,  C07C47/22 ,  C07C57/04

    摘要： A process is proposed for partial oxidation oxidation in the gas phase of C3 and/or C4 precursor compounds to (meth)acrolein and/or (meth)acrylic acid in the presence of a heterogeneous particulate catalyst in a reactor having one or more cuboidal thermoplate modules (1) which are each formed from two or more rectangular thermoplates (2) arranged parallel to each other while in each case leaving a gap (3) which can be filled with the heterogeneous particulate catalyst and is flowed through by the fluid reaction mixture; the heat of reaction being absorbed by a heat carrier which flows through the thermoplates (2) and thus at least partly evaporating, and also having a predominantly cylindrical shell (4, 15, 16) which releases the pressure at the thermoplate modules, completely surrounds them and comprises a cylinder jacket (4) and hoods (15, 16) which seal it at both ends and whose longitudinal axis is aligned parallel to the plane of the thermoplates (2), and also having one or more sealing elements (7, 23) which are arranged in such a way that the fluid reaction mixture, apart from flowing through the reactor interior spaces bounded by the hoods (15, 16), only flows through the gap (3).

    摘要翻译： 在具有一个或多个立方形热电板的反应器中，在非均相颗粒催化剂存在下，提出在C3和/或C4前体化合物的气相中部分氧化氧化成（甲基）丙烯醛和/或（甲基）丙烯酸的方法 模块（1）各自由彼此平行布置的两个或更多个矩形热板（2）形成，而在每个情况下留下间隙（3），所述间隙可以填充有异相颗粒催化剂并且被流体反应混合物流过 ; 反应热被被流经热板（2）并因此至少部分蒸发的热载体吸收，并且还具有释放热电板模块上的压力的主要为圆柱形的壳体（4,15,16），完全包围 并且包括气缸套（4）和在两端密封其并且其纵向轴线平行于热板（2）的平面对准的罩（15,16），并且还具有一个或多个密封元件（7， 23），其被布置成使得流体反应混合物除了流过由罩（15,16）限定的反应器内部空间外，仅流过间隙（3）。