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公开(公告)号：US20140256991A1
公开(公告)日：2014-09-11
申请号：US14279395
申请日：2014-05-16
发明人： Kevin J. Adlaf , Paul D. Bloom , William Chris Hoffman , Chicheng Ma , John G. Soper , Brad Zenthoefer
CPC分类号： C07C29/80 , B01D3/143 , B01D3/34 , B01D15/362 , C07B63/00 , C07C29/60 , C07C29/76 , C07C29/88 , C07C31/20 , C07C31/202 , C07C31/205
摘要： In the process of distilling a polyol product mixture including one or both of a biobased propylene glycol and a biobased ethylene glycol from the reaction of hydrogen with a biobased feed, it has been discovered that undesirable epoxides can form, and the present invention provides means for guarding against their formation, for removing epoxides which do form by particular methods of distilling, and for removing the epoxides from a finished, otherwise commercially acceptable biobased glycol product.
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公开(公告)号：US20240060902A1
公开(公告)日：2024-02-22
申请号：US18000647
申请日：2021-05-26
摘要： A process is described for the determination of soluble aldehydes in a composition including one or more of (a) 2,5-furandicarboxylic acid (FDCA), (b) terephthalic acid (TPA), (c) an ester of 2,5-furandicarboxylic acid and (d) an ester of terephthalic acid. The process can indicate the presence in the composition of even those very low levels of such soluble aldehydes that have been associated with the development of unacceptable color in a) the composition, b) some portion of the composition or c) a prepolymer, oligomer or polymer prepared, directly or indirectly, at least in part from the composition or some portion of the composition, so that mitigating or corrective measures can be undertaken in response.
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公开(公告)号：US20210147332A1
公开(公告)日：2021-05-20
申请号：US16623535
申请日：2018-06-20
摘要： A method is provided for separating a dicarboxylic acid product from a mixture containing such dicarboxylic acids. The method involves: providing a dicarboxylic acid-containing mixture of which at least 35% of the carboxylic acid content of the mixture is a dicarboxylic acid product of interest; running an extraction of said dicarboxylic acid-containing mixture through a chromatographic column configured with an amphoteric resin, such that the dicarboxylic acid product elutes preferentially from the dicarboxylic acid-containing mixture. In certain embodiments, the dicarboxylic acid product of interest can be a glucaric or gluconic acid product from a mixture of either or both of these with still other carboxylic acids.
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公开(公告)号：US20150152031A1
公开(公告)日：2015-06-04
申请号：US14613877
申请日：2015-02-04
发明人： Kevin J. Adlaf , Paul D. Bloom , William Chris Hoffman , Chicheng Ma , John G. Soper , Brad Zenthoefer
CPC分类号： C07C29/80 , B01D3/143 , B01D3/34 , B01D15/362 , C07B63/00 , C07C29/60 , C07C29/76 , C07C29/88 , C07C31/20 , C07C31/202 , C07C31/205
摘要： In the process of distilling a polyol product mixture including one or both of a biobased propylene glycol and a biobased ethylene glycol from the reaction of hydrogen with a biobased feed, it has been discovered that undesirable epoxides can form, and the present invention provides means for guarding against their formation, for removing epoxides which do form by particular methods of distilling, and for removing the epoxides from a finished, otherwise commercially acceptable biobased glycol product.
摘要翻译： 在从氢与生物基进料的反应中蒸馏包含生物基丙二醇和生物基乙二醇中的一种或两种的多元醇产物混合物的过程中，已经发现可以形成不期望的环氧化物，并且本发明提供了用于 防止其形成，用于去除通过特定蒸馏方法形成的环氧化物，以及从成品的商业上可接受的生物基二醇产物中除去环氧化物。
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公开(公告)号：US11453636B2
公开(公告)日：2022-09-27
申请号：US16623535
申请日：2018-06-20
IPC分类号： B01D15/36 , C07C51/47 , C07C59/105 , C07C59/285 , B01J43/00 , B01D15/18
摘要： A method is provided for separating a dicarboxylic acid product from a mixture containing such dicarboxylic acids. The method involves: providing a dicarboxylic acid-containing mixture of which at least 35% of the carboxylic acid content of the mixture is a dicarboxylic acid product of interest; running an extraction of said dicarboxylic acid-containing mixture through a chromatographic column configured with an amphoteric resin, such that the dicarboxylic acid product elutes preferentially from the dicarboxylic acid-containing mixture. In certain embodiments, the dicarboxylic acid product of interest can be a glucaric or gluconic acid product from a mixture of either or both of these with still other carboxylic acids.
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公开(公告)号：US11078174B2
公开(公告)日：2021-08-03
申请号：US16622713
申请日：2018-06-20
发明人： Pam Anklam , William Chris Hoffman , Stephen J. Howard , Alexandra Sanborn , Mitchell Schultz , John G. Soper
IPC分类号： C07D307/68 , B01D15/18 , B01D15/36
摘要： A process is provided for making esters of FDCA, in which an aqueous feed comprising glucaric acid is first reacted with a high boiling first alcohol in the presence of an acid catalyst and with removing water during the reaction, to form a first product mixture comprising a first ester of FDCA and the high boiling first alcohol, then unreacted high boiling first alcohol is removed from the first product mixture. The first ester of FDCA and the high boiling first alcohol is then transesterified with a lower boiling second alcohol selected from the group consisting of methanol, ethanol, isopropanol and n-propanol, to form a second product mixture comprising a second ester of FDCA with the lower boiling second alcohol, and the second ester of FDCA with the lower boiling second alcohol is recovered.
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公开(公告)号：US09533930B2
公开(公告)日：2017-01-03
申请号：US14613877
申请日：2015-02-04
发明人： Kevin J. Adlaf , Paul D. Bloom , William Chris Hoffman , Chicheng Ma , John G. Soper , Brad Zenthoefer
IPC分类号： C07C29/80 , C07B63/00 , C07C29/88 , C07C31/20 , B01D3/14 , C07C29/76 , B01D3/34 , B01D15/36 , C07C29/60
CPC分类号： C07C29/80 , B01D3/143 , B01D3/34 , B01D15/362 , C07B63/00 , C07C29/60 , C07C29/76 , C07C29/88 , C07C31/20 , C07C31/202 , C07C31/205
摘要： In the process of distilling a polyol product mixture including one or both of a biobased propylene glycol and a biobased ethylene glycol from the reaction of hydrogen with a biobased feed, it has been discovered that undesirable epoxides can form, and the present invention provides means for guarding against their formation, for removing epoxides which do form by particular methods of distilling, and for removing the epoxides from a finished, otherwise commercially acceptable biobased glycol product.
摘要翻译： 在从氢与生物基进料的反应中蒸馏包含生物基丙二醇和生物基乙二醇中的一种或两种的多元醇产物混合物的过程中，已经发现可以形成不期望的环氧化物，并且本发明提供了用于 防止其形成，用于去除通过特定蒸馏方法形成的环氧化物，以及从成品的商业上可接受的生物基二醇产物中除去环氧化物。
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