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    Oxidation process to produce a crude dry carboxylic acid product
    4.
    发明授权
    Oxidation process to produce a crude dry carboxylic acid product 有权
    氧化过程产生粗制的干燥羧酸产物

    公开(公告)号：US08772513B2

    公开(公告)日：2014-07-08

    申请号：US13758088

    申请日：2013-02-04

    申请人： Eastman Chemical Company

    发明人： Mesfin Ejerssa Janka ,  Kenny Randolph Parker ,  Ashfaq Shahanawaz Shaikh ,  Lee Reynolds Partin

    IPC分类号： C07D307/34

    CPC分类号： C07D307/68 ,  C07D307/48

    摘要： Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing at least one oxidizable compound selected from the following group: 5-(hydroxymethyl)furfural (5-HMF), 5-HMF esters (5-R(CO)OCH2-furfural where R=alkyl, cycloalkyl and aryl), 5-HMF ethers (5-R′OCH2-furfural, where R′=alkyl, cycloalkyl and aryl), 5-alkyl furfurals (5-R″-furfural, where R″=alkyl, cycloalkyl and aryl), mixed feed-stocks of 5-HMF and 5-HMF esters and mixed feed-stocks of 5-HMF and 5-HMF ethers and mixed feed-stocks of 5-HMF and 5-alkyl furfurals to generate a crude carboxylic acid slurry comprising FDCA, cooling a crude carboxylic acid slurry in cooling zone to form a cooled slurry stream. The cooled slurry stream is routed to a solid-liquid separation zone to generate a crude wet cake stream comprising FDCA that is dried in a drying zone to generate a dry carboxylic acid product stream comprising crude FDCA (cFDCA).

    摘要翻译： 公开了一种生产包含呋喃-2,5-二羧酸（FDCA）的干燥纯化羧酸产物的方法。 该方法包括氧化至少一种选自以下组的可氧化化合物：5-（羟甲基）糠醛（5-HMF），5-HMF酯（5-R（CO）OCH 2 - 糠醛，其中R =烷基，环烷基和芳基） ，5-HMF醚（5-R'OCH 2 - 糠醛，其中R'=烷基，环烷基和芳基），5-烷基糠醛（5-R“ - 糠醛，其中R”=烷基，环烷基和芳基），混合进料 5-HMF和5-HMF酯的原料和5-HMF和5-HMF醚的混合原料和5-HMF和5-烷基糠醛的混合原料以产生包含FDCA的粗制羧酸浆料，冷却 在冷却区中的粗羧酸浆料以形成冷却的浆料流。 将冷却的浆料流送至固液分离区，以产生包含FDCA的粗湿饼流，其在干燥区中干燥以产生包含粗FDCA（cFDCA）的干燥羧酸产物流。

    Process for purifying crude furan 2,5-dicarboxylic acid using hydrogenation
    5.
    发明授权
    Process for purifying crude furan 2,5-dicarboxylic acid using hydrogenation 有权
    使用氢化纯化粗呋喃2,5-二羧酸的方法

    公开(公告)号：US08748479B2

    公开(公告)日：2014-06-10

    申请号：US13758070

    申请日：2013-02-04

    申请人： Eastman Chemical Company

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

    IPC分类号： A61K31/341 ,  C07D307/34

    CPC分类号： C07D307/68

    摘要： 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.

    摘要翻译： 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。

    Process for purifying crude furan 2,5-dicarboxylic acid using hydrogenation
    10.
    发明授权
    Process for purifying crude furan 2,5-dicarboxylic acid using hydrogenation 有权

    公开(公告)号：US09458122B2

    公开(公告)日：2016-10-04

    申请号：US14841867

    申请日：2015-09-01

    申请人： Eastman Chemical Company

    发明人： Ashfaq Shahanawaz Shaikh ,  Kenny Randolph Parker ,  Mesfin Ejerssa Janka ,  Lee Reynolds Partin

    IPC分类号： C07D307/68

    CPC分类号： C07D307/68

    摘要： 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.