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11.发明授权公开(公告)号：US10526301B1
公开(公告)日：2020-01-07
申请号：US16408547
申请日：2019-05-10
Applicant: Eastman Chemical Company
Inventor： Kevin John Fontenot , Mesfin Ejerssa Janka , Kenny Randolph Parker , Ashfaq Shahanawaz Shaikh
IPC: C07D307/46
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.
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Patent Agency Ranking
12.发明授权公开(公告)号：US10421736B2
公开(公告)日：2019-09-24
申请号：US15925867
申请日：2018-03-20
Applicant: Eastman Chemical Company
Inventor： Kevin John Fontenot , Mesfin Ejerssa Janka , Kenny Randolph Parker , Ashfaq Shahanawaz Shaikh
IPC: C07D307/02 , C07D307/68 , B01D19/00 , B01D3/00 , C08G63/66 , C08G63/672 , C08G63/78 , B01D3/06 , B01D5/00 , B01D8/00 , C08G63/181
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.
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公开(公告)号：US09388111B2
公开(公告)日：2016-07-12
申请号：US14141639
申请日：2013-12-27
Applicant: Eastman Chemical Company
Abstract: Disclosed is a method for purifying aromatic dicarboxylic acid such as isophthalic acid or terephthalic acid. The process treats a crude carboxylic acid (CCA) composition by feeding a CCA composition comprising a liquid and a solid to a filter cake formation zone to form a CCA wet cake composition and a first mother liquor stream; dewatering said CCA wet cake composition to form a dewatered CCA wet cake composition having a second liquid level that is lower than the first liquid level or having no liquid level and a second mother liquor stream; and washing the dewatered CCA wet cake composition with a wash stream in a wash zone to forma washed CCA wet cake composition and a wash liquor stream.
Abstract translation: 公开了一种净化芳族二羧酸如间苯二甲酸或对苯二甲酸的方法。 该方法通过将包含液体和固体的CCA组合物进料到滤饼形成区域来处理粗羧酸（CCA）组合物以形成CCA湿滤饼组合物和第一母液流; 脱水所述CCA湿饼组合物以形成具有低于所述第一液面或不具有液面水平的第二液位的脱水CCA湿滤饼组合物和第二母液流; 并在洗涤区中用洗涤流洗涤脱水的CCA湿饼组合物，以形成洗涤的CCA湿饼组合物和洗涤液流。
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公开(公告)号：US20250026729A1
公开(公告)日：2025-01-23
申请号：US18293923
申请日：2022-07-27
Applicant: Eastman Chemical Company
Inventor： Kenny Randolph Parker , Kevin John Fontenot , Mesfin Ejerssa Janka
IPC: C07D307/68 , B01J27/08 , B01J31/04
Abstract: Disclosed herein is a retrofit process 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.
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15.发明申请公开(公告)号：US20200002301A1
公开(公告)日：2020-01-02
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: C07D307/68 , B01D3/00 , B01D3/06 , B01D5/00 , B01D8/00 , C08G63/78 , C08G63/181 , C08G63/66 , C08G63/672 , B01D19/00
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.
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公开(公告)号：US20160332979A1
公开(公告)日：2016-11-17
申请号：US15217319
申请日：2016-07-22
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： Kevin John Fontenot , Mesfin Ejerssa Janka , Kenny Randolph Parker , Ashfaq Shahanawaz Shaikh , Lee Reynolds Partin , Charles Edwan Sumner, JR. , Shane Kipley Kirk , Paula Moody , Bradford Russell Bowers , Michael Charles Morrow
IPC: C07D307/68 , B01J23/889 , B01J10/00
CPC classification number: B01J27/32 , B01D11/04 , B01D11/0446 , B01D17/00 , B01J10/002 , B01J23/8892 , B01J27/128 , B01J35/12 , B01J38/12 , C07D307/68 , Y02P20/584
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.
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