Esterification of furan-2,5-dicarboxylic acid to a dialkyl-furan-2,5-dicarboxylate vapor with rectification
    41.
    发明授权
    Esterification of furan-2,5-dicarboxylic acid to a dialkyl-furan-2,5-dicarboxylate vapor with rectification 有权
    将呋喃-2,5-二羧酸酯化成具有精馏的二烷基 - 呋喃-2,5-二羧酸盐蒸气

    公开(公告)号:US08859788B2

    公开(公告)日:2014-10-14

    申请号:US13530789

    申请日:2012-06-22

    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。

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