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    Method for producing purified dialkyl-furan-2,5-dicarboxylate separation and solid liquid separation
    1.
    发明授权
    Method for producing purified dialkyl-furan-2,5-dicarboxylate separation and solid liquid separation 有权
    纯化的二烷基 - 呋喃-2,5-二羧酸二酯分离和固液分离方法

    公开(公告)号：US08912349B2

    公开(公告)日：2014-12-16

    申请号：US13530765

    申请日：2012-06-22

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

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

    IPC: C07D307/46

    CPC classification number: C07D307/68 ,  C07D307/46

    Abstract: A process to produce a purified dimethyl-furan-2,5-dicarboxylate (DMFD) by feeding furan dicarboxylic acid and methanol to an esterification zone to generate a crude diester composition, and purifying the crude diester composition with a physical separation process followed by crystallization, solid liquid separation, and optionally drying to produce a purified DMFD composition. A portion of the stream generated by solid liquid separation can be dissolved and subjected to crystallization and solid liquid separation repeatedly. The process is useful to produce a purified DMFD composition having a low b*, at least 98 wt. % DAFD solids, and a low concentration of 5-(methoxycarbonyl)furan-2-carboxylic acid (MCFC) and methyl 5-formylfuran-2-carboxylate (MFFC).

    Abstract translation: 通过将呋喃二甲酸和甲醇加入到酯化区以产生粗制二酯组合物，并通过物理分离方法纯化粗二酯组合物，然后结晶，从而生产纯化的二甲基 - 呋喃-2,5-二羧酸二甲酯（DMFD） ，固液分离，任选地干燥以制备纯化的DMFD组合物。 通过固液分离产生的一部分流可以溶解并重复进行结晶和固液分离。 该方法可用于生产具有低b *，至少98重量％的纯化的DMFD组合物。 ％DAFD固体，低浓度的5-（甲氧羰基）呋喃-2-羧酸（MCFC）和5-甲酰呋喃-2-羧酸甲酯（MFFC）。

    Method for producing purified dialkyl-furan-2,5-dicarboxylate vapor
    4.
    发明授权
    Method for producing purified dialkyl-furan-2,5-dicarboxylate vapor 有权
    纯化的二烷基 - 呋喃-2,5-二羧酸二烷基酯蒸气的生产方法

    公开(公告)号：US08658810B2

    公开(公告)日：2014-02-25

    申请号：US13530738

    申请日：2012-06-22

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

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

    IPC: C07D307/02

    CPC classification number: C07D307/68

    Abstract: Disclosed is a process to produce a purified vapor comprising dialkyl-furan-2,5-dicarboxylate (DAFD). Furan-2,5-dicarboxylic acid (FDCA) and an alcohol in an esterification zone to generate a crude diester stream containing dialkyl furan dicarboxylate (DAFD), unreacted alcohol, 5-(alkoxycarbonyl)furan-2-carboxylic acid (ACFC), and alkyl furan-2-carboxylate (AFC). The crude diester stream is fed to a flash evaporation zone to produce a vapor alcohol composition and a first liquid DAFD rich composition. At least a portion of the remaining alcohol can be separated from the first liquid DAFD rich composition to produce a second alcohol vapor and a second liquid DAFD rich composition, followed by separating AFC from the second liquid DAFD rich composition to product an AFC vapor and a partially purified DAFD rich composition, followed by separating a portion of the DAFD from the partially purified DAFD rich composition to produce a purified DAFD vapor.

    Abstract translation: 公开了一种生产包含呋喃-2,5-二甲酸二烷基酯（DAFD）的纯化蒸气的方法。 呋喃-2,5-二羧酸（FDCA）和醇在酯化区中产生含有呋喃二羧酸二烷基酯（DAFD），未反应的醇，5-（烷氧基羰基）呋喃-2-羧酸（ACFC）的粗二酯流， 和呋喃-2-羧酸烷基酯（AFC）。 将粗二酯流进料到闪蒸区域以产生蒸汽醇组合物和富含第一液体DAFD的组合物。 剩余的醇的至少一部分可以与富含第一液体DAFD的组合物分离，以产生第二醇蒸气和富含第二液态DAFD的组合物，然后将AFC与第二种富含液体DAFD的组合物分离，以产生AFC蒸气和 部分纯化的富含DAFD的组合物，然后从部分纯化的富含DAFD的组合物中分离一部分DAFD以产生纯化的DAFD蒸气。

    ESTERIFICATION OF FURAN-2,5-DICARBOXYLIC ACID TO A DIALKYL-FURAN-2,5-DICARBOXYLATE VAPOR WITH RECTIFICATION
    5.
    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酸酸化到具有重整作用的二烷基 - 呋喃-2,5-二甲酸酯蒸气

    公开(公告)号：US20130345449A1

    公开(公告)日：2013-12-26

    申请号：US13530789

    申请日：2012-06-22

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

    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。

    OPTIMIZED LIQUID-PHASE OXIDATION
    10.
    发明申请
    OPTIMIZED LIQUID-PHASE OXIDATION 有权
    优化液相氧化

    公开(公告)号：US20100145095A1

    公开(公告)日：2010-06-10

    申请号：US12703331

    申请日：2010-02-10

    Applicant: Alan George Wonders ,  Robert Lin ,  Lee Reynolds Partin ,  Marcel de Vreede ,  Wayne Scott Strasser

    Inventor： Alan George Wonders ,  Robert Lin ,  Lee Reynolds Partin ,  Marcel de Vreede ,  Wayne Scott Strasser

    IPC: C07C51/265

    CPC classification number: C07C51/16 ,  C07C51/21 ,  C07C51/265 ,  C07C63/26

    Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.

    Abstract translation: 公开了一种用于更有效和经济地进行可氧化化合物的液相氧化的优化方法和装置。 这种液相氧化在气泡塔反应器中进行，其在相对低的温度下提供高效反应。 当氧化的化合物是对二甲苯并且来自氧化反应的产物是粗对苯二甲酸（CTA）时，可以通过更经济的技术将这种CTA产物纯化和分离，如果CTA通过常规的高温 氧化过程。

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