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    PROCESSES FOR PRODUCING 2,5-FURANDICARBOXYLIC ACID AND DERIVATIVES THEREOF AND POLYMERS MADE THEREFROM
    2.
    发明公开
    PROCESSES FOR PRODUCING 2,5-FURANDICARBOXYLIC ACID AND DERIVATIVES THEREOF AND POLYMERS MADE THEREFROM 审中-公开

    公开(公告)号：EP4306569A2

    公开(公告)日：2024-01-17

    申请号：EP23209651.1

    申请日：2016-04-13

    申请人： E I Du Pont De Nemours ,  Archer Daniels Midland Company

    发明人： Howard, Stephen J. ,  Kreutzer, Kristina A. ,  Rajagopalan, Bhuma ,  Sacia, Eric R. ,  Sanborn, Alexandra ,  Smith, Brennan

    IPC分类号： C08G63/672

    摘要： An integrated process for producing an ester of 2,5-furandicarboxylic acid from a six carbon sugar-containing feed, comprising:
    e) dehydrating a feed comprising a six-carbon sugar unit, in the presence of a bromine source and of a solvent, at an elevated temperature and for a time sufficient to generate an oxidation feed comprised of at least one of 5-hydroxymethylfurfural and/or a derivative or derivatives of 5-hydroxymethylfurfural in the solvent, together with at least one bromine containing species;
    f) contacting the oxidation feed from step (a) with a homogenous metal catalyst and with an oxygen source at an elevated temperature for a time sufficient to produce an oxidation product mixture comprising 2,5-furandicarboxylic acid (FDCA), the solvent, and a residual catalyst;
    g) purifying and separating the mixture obtained in step (b) to obtain FDCA and the solvent;
    h) recycling at least a portion of the solvent obtained in step (c) to step (a); and
    e) esterifying 2,5-furandicarboxylic acid with a C 1 -C 12 aliphatic alcohol or a C 1 -C 12 aliphatic diol, under conditions effective for carrying out the esterification and optionally in the presence of a suitable esterification catalyst.