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公开(公告)号：US11655227B2
公开(公告)日：2023-05-23
申请号：US17301003
申请日：2021-03-22
IPC分类号： C07D307/68 , B01D19/00 , B01D3/00 , B01D3/06 , B01D5/00 , B01D8/00 , C08G63/181 , C08G63/78 , C08G63/66 , C08G63/672
CPC分类号： C07D307/68 , B01D3/002 , B01D3/06 , B01D5/003 , B01D8/00 , B01D19/0036 , C08G63/181 , C08G63/66 , C08G63/672 , C08G63/78 , C08G63/785
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 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：US20150183711A1
公开(公告)日：2015-07-02
申请号：US14141639
申请日：2013-12-27
IPC分类号： C07C51/47
摘要： 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: A. feeding a CCA composition comprising a liquid and a solid, said liquid comprising an organic solvent and said solids comprising dicarboxylic acid (DCA), to a filter cake formation zone to form: (i) a CCA wet cake composition comprising said DCA solids and a portion of said organic solvent, said CCA wet cake composition having a first liquid level; and (ii) a first mother liquor stream; B. dewatering said CCA wet cake composition to form: (i) 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 (ii) a second mother liquor stream; and C. washing the dewatered CCA wet cake composition with a wash stream in a wash zone to form: (i) a washed CCA wet cake composition; and (ii) a wash liquor stream; wherein step B is performed before step C. By dewatering before a final wash stage is performed, the amount of cobalt metal in the final wet cake product is reduced. The process is flexible in that it allows one to use less wash solvent to obtain an equivalent reduction of cobalt metal in the wet cake composition. Optionally, one may obtain a low moisture wet cake without employing a separate drying step.
摘要翻译： 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。 该方法通过以下步骤处理粗羧酸（CCA）组合物：A.将包含液体和固体的CCA组合物，所述液体包含有机溶剂，所述包含二羧酸（DCA）的固体包含在滤饼形成区中以形成 ：（i）包含所述DCA固体和所述有机溶剂的一部分的CCA湿饼组合物，所述CCA湿滤饼组合物具有第一液面; 和（ii）第一母液流; B.脱水所述CCA湿饼组合物，以形成：（i）具有低于第一液面或不具有液面的第二液面的脱水CCA湿滤饼组合物; 和（ii）第二母液流; 和C.在洗涤区中用洗涤流清洗脱水的CCA湿饼组合物以形成：（i）洗涤的CCA湿饼组合物; 和（ii）洗涤液流; 其中步骤B在步骤C之前进行。通过在进行最终洗涤阶段之前脱水，减少最终湿饼产品中的钴金属的量。 该方法是柔性的，因为它允许使用较少的洗涤溶剂以获得湿饼组合物中钴金属的当量还原。 任选地，可以获得低水分湿滤饼而不采用单独的干燥步骤。
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3.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
IPC分类号： C07D307/68 , B01D3/00 , B01D3/06 , B01D5/00 , B01D8/00 , C08G63/78 , C08G63/181 , C08G63/66 , C08G63/672 , B01D19/00
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 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
发明人： 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分类号： C07D307/68 , B01J23/889 , B01J10/00
CPC分类号： B01J27/32 , B01D11/04 , B01D11/0446 , B01D17/00 , B01J10/002 , B01J23/8892 , B01J27/128 , B01J35/12 , B01J38/12 , C07D307/68 , Y02P20/584
摘要： 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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公开(公告)号：US10954207B2
公开(公告)日：2021-03-23
申请号：US16939122
申请日：2020-07-27
IPC分类号： C07D307/68 , B01D19/00 , B01D3/00 , B01D3/06 , B01D5/00 , B01D8/00 , C08G63/181 , C08G63/78 , C08G63/66 , C08G63/672
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 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：US10723712B2
公开(公告)日：2020-07-28
申请号：US16562537
申请日：2019-09-06
IPC分类号： C07D307/18 , C07D307/68 , B01D19/00 , B01D3/00 , B01D3/06 , B01D5/00 , B01D8/00 , C08G63/181 , C08G63/78 , C08G63/66 , C08G63/672
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 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：US10144751B1
公开(公告)日：2018-12-04
申请号：US15824347
申请日：2017-11-28
摘要： 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.
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公开(公告)号：US20210206738A1
公开(公告)日：2021-07-08
申请号：US17301003
申请日：2021-03-22
IPC分类号： C07D307/68 , B01D19/00 , B01D3/00 , B01D3/06 , B01D5/00 , B01D8/00 , C08G63/181 , C08G63/78 , C08G63/66 , C08G63/672
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 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：US10882032B2
公开(公告)日：2021-01-05
申请号：US15217319
申请日：2016-07-22
发明人： 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分类号： B01D17/00 , B01D3/06 , B01D3/14 , B01D11/04 , C07B63/00 , C07B41/08 , B01J38/12 , B01J35/12 , B01J23/889 , B01J10/00 , C07D307/68 , C07D307/48 , B01J27/32 , B01J27/128
摘要： 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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公开(公告)号：US10351583B2
公开(公告)日：2019-07-16
申请号：US16173207
申请日：2018-10-29
摘要： 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.
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