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    OXIDATIVE PURIFICATION METHOD FOR PRODUCING PURIFIED DRY FURAN-2,5-DICARBOXYLIC ACID
    2.
    发明申请
    OXIDATIVE PURIFICATION METHOD FOR PRODUCING PURIFIED DRY FURAN-2,5-DICARBOXYLIC ACID 有权
    用于生产纯化的干呋喃-2,5-二羧酸的氧化纯化方法

    公开(公告)号：US20140142328A1

    公开(公告)日：2014-05-22

    申请号：US14084165

    申请日：2013-11-19

    Applicant: EASTMAN CHEMICAL COMPANY

    Inventor： Ashfaq Shaikh ,  Kenny R. Parker ,  Mesfin Ejerssa Janka ,  Lee R. Partin

    IPC: C07D307/68

    CPC classification number: C07D307/68

    Abstract: Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising FDCA, removing impurities from a crude carboxylic acid slurry via oxidative purification in a low temperature post-oxidation zone to form a low impurity slurry stream. The low impurity slurry stream is further treated in a high temperature post oxidation zone to produce a secondary oxidation slurry stream which is routed to a crystallization zone to from a crystallized slurry stream.

    Abstract translation: 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。 该方法包括氧化包含至少一种可氧化化合物的进料流，以产生包含FDCA的粗羧酸浆料，通过在低温后氧化区域中氧化纯化从粗羧酸浆料中除去杂质以形成低杂质浆料流。 低杂质浆料流在高温后氧化区进一步处理，以产生二次氧化淤浆料流，该二次氧化浆料流从结晶料浆流送至结晶区。

    Oxidative purification method for producing purified dry furan-2,5-dicarboxylic acid
    3.
    发明授权
    Oxidative purification method for producing purified dry furan-2,5-dicarboxylic acid 有权
    用于生产纯化的干呋喃-2,5-二羧酸的氧化纯化方法

    公开(公告)号：US09156805B2

    公开(公告)日：2015-10-13

    申请号：US14084165

    申请日：2013-11-19

    Applicant: Eastman Chemical Company

    Inventor： Ashfaq Shaikh ,  Kenny R. Parker ,  Mesfin Ejerssa Janka ,  Lee R. Partin

    IPC: C07D307/34 ,  C07D307/68

    CPC classification number: C07D307/68

    Abstract: Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising FDCA, removing impurities from a crude carboxylic acid slurry via oxidative purification in a low temperature post-oxidation zone to form a low impurity slurry stream. The low impurity slurry stream is further treated in a high temperature post oxidation zone to produce a secondary oxidation slurry stream which is routed to a crystallization zone to from a crystallized slurry stream.

    Abstract translation: 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。 该方法包括氧化包含至少一种可氧化化合物的进料流，以产生包含FDCA的粗羧酸浆料，通过在低温后氧化区域中氧化纯化从粗羧酸浆料中除去杂质以形成低杂质浆料流。 低杂质浆料流在高温后氧化区进一步处理，以产生二次氧化淤浆料流，该二次氧化浆料流从结晶料浆流送至结晶区。

    Process for purifying crude furan 2,5-dicarboxylic acid using hydrogenation
    4.
    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

    Applicant: Eastman Chemical Company

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

    IPC: A61K31/341 ,  C07D307/34

    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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