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    ESTERIFICATION OF FURAN-2,5-DICARBOXYLIC ACID TO A DIALKYL-FURAN-2,5-DICARBOXYLATE VAPOR WITH RECTIFICATION
    71.
    发明申请
    ESTERIFICATION OF FURAN-2,5-DICARBOXYLIC ACID TO A DIALKYL-FURAN-2,5-DICARBOXYLATE VAPOR WITH RECTIFICATION 有权
    将FURAN-2,5-DICARBOXY酸酸化至具有重整性的二烷基 - 呋喃-2,5-二氯乙酸酯蒸气

    公开(公告)号：US20150031903A1

    公开(公告)日：2015-01-29

    申请号：US14491514

    申请日：2014-09-19

    Applicant: Eastman Chemical Company

    Inventor： Lee Reynolds Partin ,  Ashfaq Shaikh ,  Mesfin Ejerssa Janka ,  Kenny Randolph Parker

    IPC: C07D307/68

    CPC classification number: C07D307/68

    Abstract: A process for the manufacture of dialkyl furan-2,5-dicarboxylate (DAFD) vapor composition by feeding furan-2,5-dicarboxylic acid (“FDCA”) to an esterification reactor and in the presence of an alcohol compound such as methanol, conducting an esterification reaction to form an esterification vapor containing DAFD, unreacted alcohol compound, 5-(alkoxycarbonyl)furan-2-carboxylic acid (ACFC), and water, and continuously passing the esterification vapor through an ACFC condensing zone, that can be integral with the esterification reactor, in which at least a portion of the ACFC in the esterification vapor is converted to a liquid phase condensate, and continuously discharging the esterification vapor from the ACFC condensing zone as a DAFD vapor. There is also a DAFD vapor composition containing DAFD, water, unreacted alcohol, and by-products.

    Abstract translation: 通过将呋喃-2,5-二羧酸（“FDCA”）加入到酯化反应器中并在醇化合物例如甲醇存在下制备呋喃-2,5-二羧酸二烷基酯（DAFD）蒸气组合物的方法， 进行酯化反应以形成含有DAFD，未反应的醇化合物，5-（烷氧基羰基）呋喃-2-羧酸（ACFC）和水的酯化蒸气，并连续使酯化蒸气通过ACFC冷凝区，其可以是积分的 酯化反应器中，将酯化蒸气中的至少一部分ACFC转化为液相冷凝物，并且将作为DAFD蒸气的来自ACFC冷凝区的酯化蒸气连续排出。 还有一种含有DAFD，水，未反应的醇和副产物的DAFD蒸汽组合物。

    PROCESS FOR PURIFYING CRUDE FURAN 2,5-DICARBOXYLIC ACID USING HYDROGENATION
    72.
    发明申请
    PROCESS FOR PURIFYING CRUDE FURAN 2,5-DICARBOXYLIC ACID USING HYDROGENATION 审中-公开
    使用氢化法纯化原料呋喃2,5-二羧酸的方法

    公开(公告)号：US20140235880A1

    公开(公告)日：2014-08-21

    申请号：US14259754

    申请日：2014-04-23

    Applicant: Eastman Chemical Company

    Inventor： Ashfaq Schahanawaz Shaikh ,  Kenny Randolph Parker ,  Mesfin Ejerssa Janka ,  Lee Reynolds Partin

    IPC: C07D307/68

    CPC classification number: C07D307/68

    Abstract: A process to produce a dry purified furan-2,5-dicarboxylic acid (FDCA) is described. After oxidation of 5-(hydroxymethyl)furfural (5-HMF), a crude FDCA stream is produced that is fed to a crystallization zone followed by a solid-liquid displacement zone to form a low impurity slurry stream. The solids in the low impurity slurry stream are dissolved in a dissolution zone to produce a hydrogenation feed that is hydrogenated in a hydrogenation reactor to generate a hydrogenated FDCA composition. The hydrogenated FDCA composition is routed to a crystallization zone to form a crystallized produce stream that is separated from liquid in a solid-liquid separation zone to generate a purified wet cake stream containing FDCA that can be dried in a drying zone to generate a dry purified FDCA product stream.

    Abstract translation: 描述了制备干净的呋喃-2,5-二羧酸（FDCA）的方法。 在5-（羟甲基）糠醛（5-HMF）氧化之后，产生粗制FDCA流，将其送入结晶区，随后进行固 - 液置换区以形成低杂质浆料流。 将低杂质浆料流中的固体溶解在溶解区中以产生在氢化反应器中氢化以产生氢化FDCA组合物的氢化进料。 将氢化的FDCA组合物送至结晶区以形成在固液分离区中与液体分离的结晶产物流，以产生含有FDCA的纯化湿饼流，其可以在干燥区中干燥以产生干净的 FDCA产品流。

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