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    AN OXIDATION PROCESS TO PRODUCE A PURIFIED CARBOXYLIC ACID PRODUCT VIA SOLVENT DISPLACEMENT AND POST OXIDATION
    1.
    发明公开
    AN OXIDATION PROCESS TO PRODUCE A PURIFIED CARBOXYLIC ACID PRODUCT VIA SOLVENT DISPLACEMENT AND POST OXIDATION 审中-公开

    公开(公告)号：EP3617200A1

    公开(公告)日：2020-03-04

    申请号：EP19204319.8

    申请日：2013-07-17

    申请人： Eastman Chemical Company

    发明人： Janka, Mesfin Ejerssa ,  Parker, Kenny Randolph ,  Moody, Paula ,  Shaikh, Ashfaq Shahanawaz ,  Partin, Lee Reynolds ,  Bowers, Bradford Russell ,  Morrow, Michael Charles

    IPC分类号： C07D307/68

    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)OCH 2 -furfural where R = alkyl, cycloalkyl and aryl), 5-HMF ethers (5-R'OCH 2 -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, removing impurities from a crude carboxylic acid slurry in a liquid displacement zone to form a low impurity slurry stream. The low impurity slurry stream is further treated in a secondary oxidation zone to produce a secondary oxidation slurry stream which is routed to a crystallization zone to form a crystallized slurry stream. The crystallized slurry stream is cooled in a cooling zone and the resulting cooled crystallized slurry stream is routed to a solid-liquid separation zone to generate a purified wet cake stream comprising FDCA that is dried in a drying zone to generate a dry carboxylic acid product stream comprising purified FDCA (pFDCA).

    PROCESS FOR PURIFYING CRUDE FURAN 2,5-DICARBOXYLIC ACID USING HYDROGENATION
    5.
    发明公开
    PROCESS FOR PURIFYING CRUDE FURAN 2,5-DICARBOXYLIC ACID USING HYDROGENATION 审中-公开

    公开(公告)号：EP3333160A1

    公开(公告)日：2018-06-13

    申请号：EP18151368.0

    申请日：2013-06-10

    申请人： Eastman Chemical Company

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

    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.

    PURIFIED DIALKYL-FURAN-2,5-DICARBOXYLATE VAPOR
    6.
    发明公开
    PURIFIED DIALKYL-FURAN-2,5-DICARBOXYLATE VAPOR 审中-公开

    公开(公告)号：EP3590930A1

    公开(公告)日：2020-01-08

    申请号：EP19183646.9

    申请日：2013-06-10

    申请人： Eastman Chemical Company

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

    IPC分类号： C07D307/68

    摘要： 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.

    AN OXIDATION PROCESS TO PRODUCE A PURIFIED CARBOXYLIC ACID PRODUCT VIA SOLVENT DISPLACEMENT AND POST OXIDATION
    9.
    发明公开
    AN OXIDATION PROCESS TO PRODUCE A PURIFIED CARBOXYLIC ACID PRODUCT VIA SOLVENT DISPLACEMENT AND POST OXIDATION 审中-公开

    公开(公告)号：EP3578552A1

    公开(公告)日：2019-12-11

    申请号：EP19184951.2

    申请日：2013-07-17

    申请人： EASTMAN CHEMICAL COMPANY

    发明人： Janka, Mesfin Ejerssa ,  Parker, Kenny Randolph ,  Shaikh, Ashfaq Shahanawaz ,  Partin, Lee Reynolds ,  Moody, Paula ,  Bowers, Bradford Russell ,  Morrow, Michael Charles

    IPC分类号： C07D307/68

    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)OCH 2 -furfural where R = alkyl, cycloalkyl and aryl), 5-HMF ethers (5-R'OCH 2 -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, removing impurities from a crude carboxylic acid slurry in a liquid displacement zone to form a low impurity slurry stream. The low impurity slurry stream is further treated in a secondary oxidation zone to produce a secondary oxidation slurry stream which is routed to a crystallization zone to form a crystallized slurry stream. The crystallized slurry stream is cooled in a cooling zone and the resulting cooled crystallized slurry stream is routed to a solid-liquid separation zone to generate a purified wet cake stream comprising FDCA that is dried in a drying zone to generate a dry carboxylic acid product stream comprising purified FDCA (pFDCA).