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    PROCESS FOR THE PREPARATION OF DIALKYL SUCCINATE FROM MALEIC ANHYDRIDE
    2.
    发明公开
    PROCESS FOR THE PREPARATION OF DIALKYL SUCCINATE FROM MALEIC ANHYDRIDE 有权
    VERFAHREN ZUR HERSTELLUNG VON DIALKYLSUCCINAT AUSMALEINSÄUREANHYDRID

    公开(公告)号：EP2885268A1

    公开(公告)日：2015-06-24

    申请号：EP14784377.5

    申请日：2014-10-13

    申请人： Johnson Matthey Davy Technologies Limited

    发明人： REED, Graham ,  HILES, Andrew George ,  ANDERSSON, Rikard Umberto ,  TILLEY, Simon Nicholas ,  GORDON, Paul

    IPC分类号： C07C67/08

    CPC分类号： C07C67/08 ,  C07C69/40

    摘要： A process for the production of dialkyl succinate from a feedstock comprising maleic anhydride, said process comprising the steps of providing the feed in the liquid phase to a reactor operated at a temperature of at least about 150°C; contacting said feed with hydrogen at a pressure of at least about 300 psig in the presence of an acid tolerant catalyst and an alkanol wherein at least some of the carbon carbon double bonds of the maleic anhydride are hydrogenated to form succinic acid and that the heat generated promotes esterification to dialkyl succinate acid in situ; and recovering a stream comprising dialkyl succinate from the reactor.

    摘要翻译： 在从包含马来酸酐的原料生产琥珀酸二烷基酯的方法中，将液相中的进料提供到在至少约150℃的温度下操作的反应器。进料在至少压力下与氢气接触 在耐酸催化剂和链烷醇的存在下约300psig，其中马来酸酐的至少一些碳碳双键被氢化形成琥珀酸，并且所产生的热促进了原位酯化为琥珀酸二烷基酯。 从反应器回收琥珀酸二烷基酯。

    PROCESS FOR PURIFYING A STREAM COMPRISING 1,4-BUTANEDIOL
    3.
    发明授权
    PROCESS FOR PURIFYING A STREAM COMPRISING 1,4-BUTANEDIOL 有权

    公开(公告)号：EP2753597B1

    公开(公告)日：2018-10-17

    申请号：EP12756811.1

    申请日：2012-08-21

    申请人： Johnson Matthey Davy Technologies Limited

    发明人： REED, Graham ,  GORDON, Paul

    IPC分类号： C07C29/80 ,  C07C29/90 ,  C07C31/20

    CPC分类号： C07C29/90 ,  B01D3/002 ,  B01D3/009 ,  B01D3/14 ,  C07C29/80 ,  C07C29/84 ,  Y02P20/127 ,  C07C31/207

    摘要： A crude product stream of 1,4-butandiol and one or more of γ-butyrolactone, 2-(4-hydroxybutoxy)-tetrahydrofuran, 4-hydroxybutyl(4-hydroxybutyrate), and 3-(4-hydroxybutoxy)-tetrahydrofuran is supplied to a first distillation column. A side-draw of 1,4-butanediol and light components is removed, with the light components including at least some of those produced by reaction in the first distillation column. The stream is passed to a hydrogenation zone and subjected to hydrogenation in the presence of a hydrogenation catalyst. A 1,4-butanediol product stream having a reduced content of 2-(4-hydroxybutoxy)-tetrahydrofuran is recovered and passed to a second distillation column operated such that (4-hyroxybutyl)-4-hydroxybutyrate is removed as a bottom stream and a 1,4-butanediol stream is removed as overhead. The overhead stream removed is passed to a third distillation column and a purified 1,4-butanediol stream is recovered.

    PROCESS FOR THE PREPARATION OF SUCCINIC ACID ESTER
    4.
    发明公开
    PROCESS FOR THE PREPARATION OF SUCCINIC ACID ESTER 有权
    制备琥珀酸酯的方法

    公开(公告)号：EP2958886A1

    公开(公告)日：2015-12-30

    申请号：EP14809677.9

    申请日：2014-12-02

    申请人： Johnson Matthey Davy Technologies Limited

    发明人： SMIDT, Martin Lucas ,  CAMPBELL, Ian ,  GORDON, Paul ,  FERGUSON, Christopher ,  REED, Graham

    IPC分类号： C07C67/08

    CPC分类号： C07C67/08 ,  B01D3/009 ,  C07C69/40

    摘要： A process for production of dialkyl succinate from bio-succinic acid feedstock where solid bio-succinic acid is fed to a reactor to react with alkanol by autocatalytic esterification. Products from the reactor including unreacted succinic acid, mono alkyl ester, dialkyl ester, alkanol, water and impurities are sent to a reaction distillation column for esterification of succinic acid and further esterification of mono alkyl ester with upflowing alkanol. The bottoms products from the reaction distillation column including residual succinic acid, mono alkyl ester, dialkyl ester, impurities and alkanol are sent to a bottoms stream separation zone where di-alkyl ester is separated from alkanol, succinic acid, mono alkyl ester and impurities. The tops products from the reaction distillation column including alkanol, water and organic components are sent to a top stream distillation zone where alkanol is separated from water and organic components. The organic components are recycled to the reaction zone column.

    摘要翻译： 由生物琥珀酸原料生产琥珀酸二烷基酯的方法，包括以下步骤： （a）将固体生物琥珀酸供给到第一反应器中，在第一反应器中与链烷醇接触，所述第一反应器在合适的温度和压力下操作以使自催化酯化发生; （b）使从第一反应器中除去的包含未反应的琥珀酸，单烷基酯，二烷基酯，链烷醇，水和杂质的料流通入在反应区顶部或顶部附近的点，所述反应区在温度和压力下操作以使 琥珀酸和单烷基酯的进一步酯化，并使所述料流逆流反应以向上流出另外的链烷醇; （c）从反应区塔底或附近除去包含选自渣油， 琥珀酸，单烷基酯，二烷基酯，杂质和链烷醇，并将所述物流通入底部物流分离区，在此将所述二烷基酯与链烷醇和琥珀酸单烷基酯和杂质分离; （d）将琥珀酸和单烷基酯循环到反应区柱中; （e）除去至少一些杂质作为吹扫; 和（f）从反应区塔顶部或附近除去包含链烷醇，水和有机组分的物流，并使所述物流通过塔顶馏出区，在塔顶馏出区分离链烷醇，从水和有机组分中分离出 将有机组分再循环至反应区柱。

    PROCESS FOR THE PREPARATION OF SUCCINIC ACID ESTER
    6.
    发明授权
    PROCESS FOR THE PREPARATION OF SUCCINIC ACID ESTER 有权

    公开(公告)号：EP2958886B1

    公开(公告)日：2018-07-04

    申请号：EP14809677.9

    申请日：2014-12-02

    申请人： Johnson Matthey Davy Technologies Limited

    发明人： SMIDT, Martin Lucas ,  CAMPBELL, Ian ,  GORDON, Paul ,  FERGUSON, Christopher ,  REED, Graham

    IPC分类号： C07C67/08

    CPC分类号： C07C67/08 ,  B01D3/009 ,  C07C69/40

    摘要： A process for production of dialkyl succinate from bio-succinic acid feedstock where solid bio-succinic acid is fed to a reactor to react with alkanol by autocatalytic esterification. Products from the reactor including unreacted succinic acid, mono alkyl ester, dialkyl ester, alkanol, water and impurities are sent to a reaction distillation column for esterification of succinic acid and further esterification of mono alkyl ester with upflowing alkanol. The bottoms products from the reaction distillation column including residual succinic acid, mono alkyl ester, dialkyl ester, impurities and alkanol are sent to a bottoms stream separation zone where di-alkyl ester is separated from alkanol, succinic acid, mono alkyl ester and impurities. The tops products from the reaction distillation column including alkanol, water and organic components are sent to a top stream distillation zone where alkanol is separated from water and organic components. The organic components are recycled to the reaction zone column.

    PROCESS FOR PURIFYING A STREAM COMPRISING 1,4- BUTANEDIOL
    8.
    发明公开
    PROCESS FOR PURIFYING A STREAM COMPRISING 1,4- BUTANEDIOL 审中-公开
    用于清洗流的方法与1,4-丁二醇

    公开(公告)号：EP2753597A1

    公开(公告)日：2014-07-16

    申请号：EP12756811.1

    申请日：2012-08-21

    申请人： Johnson Matthey Davy Technologies Limited

    发明人： REED, Graham ,  GORDON, Paul

    IPC分类号： C07C29/80 ,  C07C29/90 ,  C07C31/20

    CPC分类号： C07C29/90 ,  B01D3/002 ,  B01D3/009 ,  B01D3/14 ,  C07C29/80 ,  C07C29/84 ,  C07C31/207

    摘要： A crude product stream of 1,4-butandiol and one or more of γ-butyrolactone, 2-(4-hydroxybutoxy)-tetrahydrofuran, 4-hydroxybutyl(4-hydroxybutyrate), and 3-(4-hydroxybutoxy)-tetrahydrofuran is supplied to a first distillation column. A side-draw of 1,4-butanediol and light components is removed, with the light components including at least some of those produced by reaction in the first distillation column. The stream is passed to a hydrogenation zone and subjected to hydrogenation in the presence of a hydrogenation catalyst. A 1,4-butanediol product stream having a reduced content of 2-(4-hydroxybutoxy)-tetrahydrofuran is recovered and passed to a second distillation column operated such that (4-hyroxybutyl)-4-hydroxybutyrate is removed as a bottom stream and a 1,4-butanediol stream is removed as overhead. The overhead stream removed is passed to a third distillation column and a purified 1,4-butanediol stream is recovered.