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公开(公告)号：US11834403B2
公开(公告)日：2023-12-05
申请号：US17649398
申请日：2022-01-31
发明人： Timothy Walter Abraham , Erik Allen , John J. Hahn , Paraskevas Tsobanakis , Eric Christopher Bohnert , Christopher Lawrence Frank
CPC分类号： C07C51/44 , B01D3/002 , B01D3/10 , B01D3/34 , B01D15/363 , C07C51/412 , C07C51/42 , C12P7/42 , C07C51/412 , C07C59/01 , C07C51/44 , C07C59/01 , C07C51/42 , C07C59/01
摘要： A method for recovering a composition enriched in 3-hydroxypropionic acid by providing the fermentation broth, acidifying the fermentation broth; reducing the total sulfate ion and phosphate ion concentration of the resulting aqueous solution to produce a reduced ion aqueous solution; distilling the resulting reduced ion aqueous solution and recovering the resulting aqueous distillation product comprising 3-hydroxypropionic acid.
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公开(公告)号：US11332428B2
公开(公告)日：2022-05-17
申请号：US16270143
申请日：2019-02-07
摘要： Methods and systems for producing alkyl hydroxyalkanoate from hydroxy carboxylic acid recovery bottoms. The methods generally comprise the steps of obtaining a hydroxy carboxylic acid recovery bottom, adding a mono-alcohol to the hydroxy carboxylic acid recovery bottom to obtain a first mixture, heating the first mixture in the presence of a catalyst to form a reaction product, distilling the reaction product, and recovering an alkyl hydroxyalkanoate fraction.
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公开(公告)号：US10301249B2
公开(公告)日：2019-05-28
申请号：US15945494
申请日：2018-04-04
摘要： Methods and systems for producing alkyl hydroxyalkanoates from hydroxycarboxylic acid recovery bottoms. The methods generally comprise the steps of obtaining a hydroxycarboxylic acid recovery bottom, adding a mono-alcohol to the hydroxycarboxylic acid recovery bottom to obtain a first mixture, heating the first mixture, optionally in the presence of a catalyst to form a reaction product, distilling the reaction product, and recovering an alkyl hydroxyalkanoate fraction.
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公开(公告)号：US09938224B2
公开(公告)日：2018-04-10
申请号：US15029357
申请日：2014-10-17
摘要： Methods and systems for producing alkyl hydroxyalkanoate from hydroxy carboxylic acid recovery bottoms. The methods generally comprise the steps of obtaining a hydroxy carboxylic acid recovery bottom, adding a mono-alcohol to the hydroxy carboxylic acid recovery bottom to obtain a first mixture, beating the first mixture in the presence of a catalyst to form a reaction product, distilling the reaction product, and recovering an alkyl hydroxyalkanoate fraction.
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公开(公告)号：US12103912B2
公开(公告)日：2024-10-01
申请号：US17663071
申请日：2022-05-12
摘要： Methods and systems for producing alkyl hydroxyalkanoate from hydroxycarboxylic acid recovery bottoms. The methods generally comprise the steps of obtaining a hydroxycarboxylic acid recovery bottom, adding a mono-alcohol to the hydroxycarboxylic acid recovery bottom to obtain a first mixture, heating the first mixture, optionally in the presence of a catalyst, to form a reaction product, distilling the reaction product, and recovering an alkyl hydroxyalkanoate fraction.
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公开(公告)号：US11236037B2
公开(公告)日：2022-02-01
申请号：US16601069
申请日：2019-10-14
发明人： Timothy Walter Abraham , Erik Allen , John J. Hahn , Paraskevas Tsobanakis , Eric Christopher Bohnert , Christopher Lawrence Frank
摘要： A method for recovering a composition enriched in 3-hydroxypropionic acid by providing the fermentation broth, acidifying the fermentation broth; reducing the total sulfate ion and phosphate ion concentration of the resulting aqueous solution to produce a reduced ion aqueous solution; distilling the resulting reduced ion aqueous solution and recovering the resulting aqueous distillation product comprising 3-hydroxypropionic acid.
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公开(公告)号：US10774026B2
公开(公告)日：2020-09-15
申请号：US16837480
申请日：2020-04-01
IPC分类号： C07C67/327 , C07C67/54 , C07C67/03
摘要： A method for producing esters of an alpha, beta-unsaturated carboxylic acid are disclosed, the method includes reacting a three or four carbon beta-hydroxyalkanoate composition or mixtures thereof with a mono-alcohol under heating conditions to form a reaction product and distilling the reaction product to recover a composition containing at least fifty percent by weight of the ester of the alpha, beta-unsaturated carboxylic acid.
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公开(公告)号：US11834402B2
公开(公告)日：2023-12-05
申请号：US17649392
申请日：2022-01-31
发明人： Timothy Walter Abraham , Erik Allen , John J. Hahn , Paraskevas Tsobanakis , Eric Christopher Bohnert , Christopher Lawrence Frank
IPC分类号： C07C5/44 , B01D3/00 , B01D3/10 , C07C51/44 , C07C51/42 , C12P7/42 , C07C51/41 , B01D3/34 , B01D15/36
CPC分类号： C07C51/44 , B01D3/002 , B01D3/10 , B01D3/34 , B01D15/363 , C07C51/412 , C07C51/42 , C12P7/42 , C07C51/412 , C07C59/01 , C07C51/44 , C07C59/01 , C07C51/42 , C07C59/01
摘要： A method for recovering a composition enriched in 3-hydroxypropionic acid from a fermentation broth comprising 3-hydroxypropionic acid and/or salts thereof comprises the steps of: (a) providing the fermentation broth having a pH of from about 2 to about 8 comprising: 3-hydroxypropionic acid and/or salts thereof, (b) acidifying the fermentation broth; (c) reducing the total sulfate ion and phosphate ion (d) distilling the resulting reduced ion aqueous solution and (e) recovering the product.
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公开(公告)号：US10442748B2
公开(公告)日：2019-10-15
申请号：US14776984
申请日：2014-03-14
发明人： Timothy Walter Abraham , Erik Allen , John J. Hahn , Paraskevas Tsobanakis , Eric Christopher Bohnert , Christopher Lawrence Frank
摘要： A method for recovering a composition enriched in 3-hydroxypropionic acid from a fermentation broth comprising 3-hydroxypropionic acid and/or salts thereof comprises the steps of: (a) providing the fermentation broth having a pH of from about 2 to about 8 comprising: 3-hydroxypropionic acid and/or salts thereof, (b) acidifying the fermentation broth; (c) reducing the total sulfate ion and phosphate ion (d) distilling the resulting reduced ion aqueous solution and (e) recovering the product.
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公开(公告)号：US20130150616A1
公开(公告)日：2013-06-13
申请号：US13719095
申请日：2012-12-18
IPC分类号： C07C67/03
CPC分类号： C07C67/30 , C07C51/347 , C07C51/377 , C07C67/03 , C07C67/08 , C07C67/31 , C07C67/327 , C12P7/42 , C12P7/52 , C07C57/04 , C07C69/675 , C07C69/708 , C07C69/54
摘要： Preparation of derivatives of β-hydroxycarboxylic acid, including β-hydroxycarboxylic acid esters, α,β-unsaturated carboxylic acid, esters of α,β-unsaturated carboxylic acid, and alkoxy derivatives.
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