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1.发明公开-
公开(公告)号：US11787774B2
公开(公告)日：2023-10-17
申请号：US17753399
申请日：2020-08-25
发明人： Mesfin Ejerssa Janka
IPC分类号： C07D307/68
CPC分类号： C07D307/68
摘要： A process for preparing 5-(alkoxycarbonyl)furan-2-carboxylic acids (ACFC) by oxidizing various furcates in the presence of a catalyst containing cobalt, manganese, and bromine, and a solvent while simultaneously removing water vapor from the reaction chamber. The process can produce ACFC with high purity and low color, and in high yield.
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公开(公告)号：US11655334B2
公开(公告)日：2023-05-23
申请号：US16430717
申请日：2019-06-04
发明人： Mesfin Ejerssa Janka
IPC分类号： C08G63/676 , B01J27/128 , C07D307/68
CPC分类号： C08G63/676 , B01J27/128 , C07D307/68
摘要： 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.
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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：US20200324277A1
公开(公告)日：2020-10-15
申请号：US16914723
申请日：2020-06-29
IPC分类号： B01J27/32 , B01D11/04 , B01J27/128 , C07D307/68 , C07B41/08 , C07B63/00 , C07D307/48 , B01D17/00 , B01J10/00 , B01J23/889
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：US10183961B1
公开(公告)日：2019-01-22
申请号：US15824318
申请日：2017-11-28
发明人： Leo Iu , Matthew Clarke , Mesfin Ejerssa Janka
摘要： Ligands for use with catalyst compositions used in hydroformylation reactions are described herein. The ligands are used with various ester 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：US09988329B1
公开(公告)日：2018-06-05
申请号：US15427691
申请日：2017-02-08
发明人： Mesfin Ejerssa Janka , Robert Thomas Hembre , Scott Donald Barnicki , Robert Scott Huss , Xiaopeng Shan , Stephanie Rollins Testerman , Timothy Alan Upshaw , Dewey Wayne Fuller, Jr.
IPC分类号： C07C29/14 , C07C29/50 , C07C45/62 , C07C51/00 , C07C29/80 , C07C45/82 , C07C51/44 , B01J23/755 , B01J23/883 , B01J23/887
CPC分类号： C07C29/14 , B01J23/755 , B01J23/883 , B01J23/8878 , C07C29/143 , C07C29/80 , C07C45/29 , C07C45/62 , C07C45/74 , C07C45/82 , C07C51/00 , C07C51/44 , C07C49/08 , C07C49/10 , C07C31/125 , C07C47/02 , C07C31/12 , C07C47/21
摘要： A transfer-hydrogenation process for preparing a carbonyl compound and an alcohol compound comprises the steps of (a) contacting a first carbonyl compound with a first alcohol compound in the presence of a transfer-hydrogenation catalyst in a first reaction zone at conditions effective to form a second carbonyl compound from the first alcohol compound and a second alcohol compound from the first carbonyl compound, and (b) removing the second carbonyl compound from the first reaction zone during step (a). The first carbonyl compound is a saturated aldehyde or ketone, or an α,β-unsaturated aldehyde or ketone. The first alcohol compound is a primary or secondary alcohol. The second alcohol compound is α,β-saturated. The transfer-hydrogenation catalyst includes a Group 8 to 11 metal. This process is useful for preparing and higher value alcohols, such as butanol or 2-ethylhexanol, from the corresponding carbonyl compounds by engaging lower alcohol (C2-C4) feedstocks instead of hydrogen (H2).
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公开(公告)号：US09212121B2
公开(公告)日：2015-12-15
申请号：US14034617
申请日：2013-09-24
IPC分类号： C07C51/265
CPC分类号： C07C51/265 , C07C63/26
摘要： 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.
摘要翻译： 公开了制备对苯二甲酸的方法，该方法包括在反应介质中将对二甲苯，包含水和含有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，其中锆以例如1的量存在于反应介质中 相对于反应介质中液体的重量为ppm至50ppm。
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9.发明授权Oxidative purification method for producing purified dry furan-2,5-dicarboxylic acid 有权用于生产纯化的干呋喃-2,5-二羧酸的氧化纯化方法公开(公告)号：US09156805B2
公开(公告)日：2015-10-13
申请号：US14084165
申请日：2013-11-19
IPC分类号： C07D307/34 , C07D307/68
CPC分类号： C07D307/68
摘要： Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising FDCA, removing impurities from a crude carboxylic acid slurry via oxidative purification in a low temperature post-oxidation zone to form a low impurity slurry stream. The low impurity slurry stream is further treated in a high temperature post oxidation zone to produce a secondary oxidation slurry stream which is routed to a crystallization zone to from a crystallized slurry stream.
摘要翻译： 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。 该方法包括氧化包含至少一种可氧化化合物的进料流，以产生包含FDCA的粗羧酸浆料，通过在低温后氧化区域中氧化纯化从粗羧酸浆料中除去杂质以形成低杂质浆料流。 低杂质浆料流在高温后氧化区进一步处理，以产生二次氧化淤浆料流，该二次氧化浆料流从结晶料浆流送至结晶区。
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10.发明授权公开(公告)号：US08916720B2
公开(公告)日：2014-12-23
申请号：US13798257
申请日：2013-03-13
IPC分类号： C07D307/68 , F01K21/04
CPC分类号： F01K21/04 , C07D307/68 , F01K25/065
摘要： Disclosed is a process for producing a dry, purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). Also disclosed is a method for treating an oxidation off-gas stream from such a process. The method features solvent as well as energy recovery from the off-gas stream.
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