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    Processes for producing terephthalic acid
    4.
    发明授权
    Processes for producing terephthalic acid 有权

    公开(公告)号：US09382184B2

    公开(公告)日：2016-07-05

    申请号：US14934208

    申请日：2015-11-06

    Applicant: EASTMAN CHEMICAL COMPANY

    Inventor： David Milton Lange ,  Ashfaq Shahanawaz Shaikh ,  Patrice L. Riesenberg ,  Mesfin Ejerssa Janka

    IPC: C07C51/265

    CPC classification number: C07C51/265 ,  C07C63/26

    Abstract: Processes for producing terephthalic acid are disclosed, the processes including a step of combining in a reaction medium para-xylene, a solvent comprising water and a saturated organic acid having from 2-4 carbon atoms, and an oxygen-containing gas, at a temperature for example from about 145° C. to about 175° C., in the presence of a catalyst composition comprising cobalt, manganese, zirconium, and bromine, wherein the zirconium is present in the reaction medium in an amount, for example, from 1 ppm to 50 ppm with respect to the weight of the liquid in the reaction medium.

    OXIDATION PROCESS TO PRODUCE A PURIFIED CARBOXYLIC ACID PRODUCT VIA SOLVENT DISPLACEMENT AND POST OXIDATION
    5.
    发明申请
    OXIDATION PROCESS TO PRODUCE A PURIFIED CARBOXYLIC ACID PRODUCT VIA SOLVENT DISPLACEMENT AND POST OXIDATION 有权

    公开(公告)号：US20160130244A1

    公开(公告)日：2016-05-12

    申请号：US14995901

    申请日：2016-01-14

    Applicant: Eastman Chemical Company

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

    IPC: C07D307/68

    CPC classification number: C07D307/68 ,  C07D307/60

    Abstract: 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, 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).

    Processes for producing isophthalic acid
    6.
    发明授权
    Processes for producing isophthalic acid 有权
    生产间苯二甲酸的方法

    公开(公告)号：US09199906B2

    公开(公告)日：2015-12-01

    申请号：US14034621

    申请日：2013-09-24

    Applicant: Eastman Chemical Company

    Inventor： Ashfaq Shahanawaz Shaikh ,  David Milton Lange ,  William Lee Cook ,  Mesfin Ejerssa Janka

    IPC: C07C51/265

    CPC classification number: C07C51/265 ,  C07C63/24

    Abstract: Processes for producing isophthalic acid are disclosed, the processes including a step of combining in a reaction medium meta-xylene, a solvent comprising water and a saturated organic acid having from 2-4 carbon atoms, and an oxygen-containing gas, at a temperature for example from about 145° C. to about 175° C., in the presence of a catalyst composition comprising cobalt, manganese, zirconium, and bromine, wherein the zirconium is present in the reaction medium in an amount, for example, from about 1 ppm to 50 ppm with respect to the weight of the liquid in the reaction medium.

    Abstract translation: 公开了制备间苯二甲酸的方法，该方法包括在反应介质中间二甲苯，包含水和具有2-4个碳原子的饱和有机酸的溶剂和含氧气体在一定温度下混合的步骤 例如约145℃至约175℃，在包含钴，锰，锆和溴的催化剂组合物存在下，其中锆以反应介质的形式存在，其量例如为约 相对于反应介质中液体的重量为1ppm至50ppm。

    Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidation
    7.
    发明授权
    Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidation 有权
    氧化工艺，通过溶剂置换和后氧化生产纯化的羧酸产物

    公开(公告)号：US09029580B2

    公开(公告)日：2015-05-12

    申请号：US13758072

    申请日：2013-02-04

    Applicant: Eastman Chemical Company

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

    IPC: C07D307/60 ,  C07D307/68

    CPC classification number: C07D307/68 ,  C07D307/60

    Abstract: 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 were 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.

    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 - 糠醛为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） 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的粗羧酸浆料。

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