公开(公告)号：US20190337914A1

公开(公告)日：2019-11-07

申请号：US15971094

申请日：2018-05-04

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： Kenny Raldolph Parker ,  Mesfin Ejerssa Janka

IPC: C07D307/68 ,  B01J23/75 ,  B01J8/18 ,  B01J8/00

Abstract: Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid.

公开(公告)号：US10144751B1

公开(公告)日：2018-12-04

申请号：US15824347

申请日：2017-11-28

Applicant: Eastman Chemical Company

Inventor： Leo Iu ,  Matthew Clarke ,  Kevin John Fontenot ,  Mesfin Ejerssa Janka

IPC: C07C45/50 ,  C07F9/00 ,  B01J31/00 ,  C07F9/6571 ,  B01J31/24 ,  B01J31/18

Abstract: Ligands for use with catalyst compositions used in hydroformylation reactions are described herein. The ligands are used with various octofluorotoluene or hydrocarbon solvents and achieve an increase in isoselectivity with an increase in temperature, an increase in TON with an increase in temperature, and/or will show isoselectivity that is surprisingly high in comparison to the hydroformylation reactions using common solvents.

公开(公告)号：US09676740B2

公开(公告)日：2017-06-13

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 ,  C07D307/60

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 is alkyl, cycloalkyl, or aryl), 5-HMF ethers (5-R′OCH2-furfural where R′ is alkyl, cycloalkyl, or aryl), 5-alkyl furfurals (5-R″-furfural where R″ is alkyl, cycloalkyl, or aryl), mixed feedstocks of 5-HMF and 5-HMF esters, mixed feedstocks of 5-HMF and 5-HMF ethers, and mixed feedstocks of 5-HMF and 5-alkyl furfurals to generate a crude carboxylic acid slurry comprising FDCA.

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.

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).

公开(公告)号：US09199958B2

公开(公告)日：2015-12-01

申请号：US14525624

申请日：2014-10-28

Applicant: Eastman Chemical Company

Inventor： Mesfin Ejerssa Janka ,  David Lange ,  Michael C. Morrow ,  Bradford Russell Bowers ,  Kenny Randolph Parker ,  Ashfaq Shaikh ,  Lee Reynolds Partin ,  Charles Sumner

IPC: C07D307/68

CPC classification number: C07D307/68

Abstract: Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid.

Abstract translation: 公开了一种生产粗制羧酸产物羧酸产物的氧化方法。 该方法包括将包含至少一种可氧化化合物的进料流氧化以产生包含呋喃-2,5-二羧酸（FDCA）及其组合物的粗羧酸浆料。 还公开了通过在粗羧酸上利用各种纯化方法来生产干燥的纯化羧酸产物的方法。

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。

公开(公告)号：US09029581B2

公开(公告)日：2015-05-12

申请号：US14491514

申请日：2014-09-19

Applicant: Eastman Chemical Company

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。

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。

公开(公告)号：US20150065735A1

公开(公告)日：2015-03-05

申请号：US14536387

申请日：2014-11-07

Applicant: Eastman Chemical Company

Inventor： Kenny Randolph Parker ,  Ashfaq Shaikh ,  Lee Raynolds Parton ,  Mesfin Ejerssa Janka

IPC: C07D307/68

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）。