公开(公告)号：US20140128623A1

公开(公告)日：2014-05-08

申请号：US13671941

申请日：2012-11-08

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： Mesfin Ejerssa Janka ,  John Dayton Baker, JR. ,  Stephanie Nicole Rollins

IPC: C07D307/68

CPC classification number: C07D307/68 ,  C07D307/18 ,  C07D307/24

Abstract: The present invention relates to a method of synthesizing a low colored furan-2,5-dicarboxylate derivative plasticizer by utilizing purified FDCA (pFDCA), which has very low level 5-formyl furan-2-carboxyic acid (FFCA) and very low level colored bodies, and an alcohol.

Abstract translation: 本发明涉及通过利用具有非常低的5-甲酰基呋喃-2-羧酸（FFCA）水平的纯化的FDCA（pFDCA）和非常低的水平来合成低色度的呋喃-2,5-二羧酸酯衍生物增塑剂的方法 彩色身体和酒精。

公开(公告)号：US20130345451A1

公开(公告)日：2013-12-26

申请号：US13758070

申请日：2013-02-04

Applicant: EASTMAN CHEMICAL COMPANY

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

IPC: C07D307/68

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。

公开(公告)号：US20240317698A1

公开(公告)日：2024-09-26

申请号：US18560956

申请日：2022-05-12

Applicant: Eastman Chemical Company

Inventor： Kenny Randolph Parker ,  Mesfin Ejerssa Janka

IPC: C07D307/68

CPC classification number: C07D307/68

Abstract: Disclosed herein is a method to make 5-(alkoxycarbonyl)furan-2-carboxylic acids (ACFC) from feedstocks comprised of furoates. When a feedstock comprised of methyl 5-methylfuran-2-carboxylate (MMFC) is used a product comprised of (5-methoxycarbonyl)furan-2-carboxylic acid (MCFC) is obtained in high yield.

公开(公告)号：US20240270708A1

公开(公告)日：2024-08-15

申请号：US18560961

申请日：2022-05-12

Applicant: Eastman Chemical Company

Inventor： Kenny Randolph Parker ,  Mesfin Ejerssa Janka

IPC: C07D307/54

CPC classification number: C07D307/54

Abstract: Disclosed herein is a method to make 5-(alkoxycarbonyl)furan-2-carboxylic acids (ACFC) from feedstocks comprised of furcates. When a feedstock comprised of methyl 5-methylfuran-2-carboxylate (MMFC) is used a product comprised of (5-(methoxycarbonyl)furan-2-carboxylic acid (MCFC) is obtained in a high yield.

公开(公告)号：US20230381763A1

公开(公告)日：2023-11-30

申请号：US18245904

申请日：2021-09-22

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： Mesfin Ejerssa Janka ,  Stephanie Rollins Testerman ,  Jody Lee Rodgers ,  Michelle Nicole Tuttle

IPC: B01J31/24 ,  B01J23/46 ,  C07C45/50

CPC classification number: B01J31/2409 ,  B01J23/464 ,  C07C45/50

Abstract: Processes for preparing aldehydes from olefins under hydroformylation temperature and pressure conditions are disclosed. The processes include a step of contacting at least one olefin with hydrogen and carbon monoxide in the presence of at least one solvent and a transition metal-based catalyst composition comprising a bisphosphine ligand.

公开(公告)号：US11603360B2

公开(公告)日：2023-03-14

申请号：US16914618

申请日：2020-06-29

Applicant: Eastman Chemical Company

Inventor： Mesfin Ejerssa Janka

IPC: C07D307/68 ,  C07D307/42 ,  B01D3/06 ,  C07B63/00 ,  C07B33/00 ,  C07B63/02 ,  B01D3/14 ,  B01D3/00

Abstract: Disclosed is a purified dialkyl furan dicarboxylate (DAFD) vapor composition containing at least 99.5 wt. % DAFD; 5-(alkoxycarbonyl) furan-2-carboxylic acid (ACFC) that, if present, is present in an amount of not more than 1000 ppm, alkyl-5-formylfuran-2-carboxylate (AFFC) that, if present, is present in an amount of not more than 1000 ppm, 5-(dialkoxymethyl)furan-2-carboxylic acid (DAFCA) that if present, is present in an amount of not more than 1000 ppm, and alkyl 5-(dialkoxymethyl)furan-2-carboxylate (ADAFC) that if present, is present in an amount of not more than 1000 ppm, in each case based on the weight of the DAFD vapor composition.

公开(公告)号：US11440895B2

公开(公告)日：2022-09-13

申请号：US16430694

申请日：2019-06-04

Applicant: Eastman Chemical Company

Inventor： Mesfin Ejerssa Janka

IPC: C07D307/68 ,  B01J31/04 ,  B01J10/00 ,  B01J35/12 ,  B01J27/08

Abstract: Disclosed herein is a very efficient method to make 5-(alkoxycarbonyl)furan-2-carboxylic acids (ACFC) from feedstocks comprised of furoates. When a feedstock comprised of methyl 5-methylfuran-2-carboxylate (MMFC) is used a product comprised of (5-(methoxycarbonyl)furan-2-carboxylic acid (MCFC) is obtained in high yield.

公开(公告)号：US10954207B2

公开(公告)日：2021-03-23

申请号：US16939122

申请日：2020-07-27

Applicant: Eastman Chemical Company

Inventor： Kevin John Fontenot ,  Mesfin Ejerssa Janka ,  Kenny Randolph Parker ,  Ashfaq Shahanawaz Shaikh

IPC: C07D307/68 ,  B01D19/00 ,  B01D3/00 ,  B01D3/06 ,  B01D5/00 ,  B01D8/00 ,  C08G63/181 ,  C08G63/78 ,  C08G63/66 ,  C08G63/672

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 esterification zone comprises at least one reactor that has been previously used in an DMT process.

公开(公告)号：US10723712B2

公开(公告)日：2020-07-28

申请号：US16562537

申请日：2019-09-06

Applicant: Eastman Chemical Company

Inventor： Kevin John Fontenot ,  Mesfin Ejerssa Janka ,  Kenny Randolph Parker ,  Ashfaq Shahanawaz Shaikh

IPC: C07D307/18 ,  C07D307/68 ,  B01D19/00 ,  B01D3/00 ,  B01D3/06 ,  B01D5/00 ,  B01D8/00 ,  C08G63/181 ,  C08G63/78 ,  C08G63/66 ,  C08G63/672

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 esterification zone comprises at least one reactor that has been previously used in an DMT process.

公开(公告)号：US20190389824A1

公开(公告)日：2019-12-26

申请号：US16430694

申请日：2019-06-04

Applicant: Eastman Chemical Company

Inventor： Mesfin Ejerssa Janka

IPC: C07D307/68 ,  B01J31/04 ,  B01J27/08 ,  B01J35/12 ,  B01J10/00

Abstract: Disclosed herein is a very efficient method to make 5-(alkoxycarbonyl)furan-2-carboxylic acids (ACFC) from feedstocks comprised of furoates. When a feedstock comprised of methyl 5-methylfuran-2-carboxylate (MMFC) is used a product comprised of (5-(methoxycarbonyl)furan-2-carboxylic acid (MCFC) is obtained in high yield.