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公开(公告)号：US20230082247A1
公开(公告)日：2023-03-16
申请号：US17946785
申请日：2022-09-16
申请人： Circ, LLC
发明人： Allan Stuart Myerson , Julie Ann-Crowe Willoughby , Keith Quentin Hayes, III , Timothy Ethan Atwood , Gheorghe Florin Barla , Hsun-Cheng Su
IPC分类号： C07C51/09 , C08J11/16 , C07C29/128
摘要： A method of obtaining a purified regenerated diacid from a depolymerization of a polyester in a waste material wherein the depolymerization provides a depolymerized mixture comprising a regenerated diol, a regenerated diacid, and a catalyst is disclosed. The method comprises: separating a regenerated composition including the regenerated acid and the catalyst from the regenerated diol; providing the regenerated composition in a liquid medium to form a pre-aged mixture; subjecting the pre-aged mixture to thermal cycling wherein the cycling occurs within 25° C. and within a temperature range of from 150° C. or more to 300° C. or less to form an aged mixture; and separating the regenerated composition from the liquid medium in the aged mixture.
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公开(公告)号：US20210331999A1
公开(公告)日：2021-10-28
申请号：US16625376
申请日：2017-09-14
发明人： Weiguo Cheng , Li Dong , Qian Su , Songsong Chen , Junping Zhang , Suojiang Zhang
IPC分类号： C07C68/065 , C07C29/128 , B01J8/02
摘要： A system and a process for co-producing dimethyl carbonate and ethylene glycol. The system comprises an interconnected ethylene carbonate preparation unit and an ethylene carbonate alcoholysis unit. The ethylene carbonate preparation unit comprises a fixed bed reactor and a light-component stripping column connected to each other. The fixed bed reactor is filled with a supported ionic liquid catalyst. The process comprises the steps of: reacting carbon dioxide and ethylene oxide as raw materials in the fixed bed reactor to produce ethylene carbonate, purifying the ethylene carbonate and then mixing it with an alcoholysis reaction catalyst, and reacting the mixture with methanol in a reactive distillation tower, producing dimethyl carbonate and ethylene glycol. The process increases the conversion rate of ethylene oxide and avoids the need for a process of separating conventional homogeneous catalysts from ethylene carbonate, thereby reducing process energy consumption and simplifying process procedures.
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公开(公告)号：US20190256450A1
公开(公告)日：2019-08-22
申请号：US16259980
申请日：2019-01-28
申请人： 9449710 CANADA INC.
发明人： Adel ESSADDAM , Fares ESSADDAM
IPC分类号： C07C69/82 , C08F8/50 , C07C29/128 , C07C67/08 , C08J7/02 , C08J11/24 , C07C29/09 , C08J11/26 , C08K5/05 , C07C31/20 , C07C51/09 , C08L67/03
摘要： The present disclosure relates to the formation of terephthalate esters. The present invention also relates to the depolymerization of polyethylene terephthalate (PET) or poly(ethylene glycol-co-1,4-cyclohexanedimethanol terephthalate) and the recovery of terephthalate esters
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公开(公告)号：US10266467B2
公开(公告)日：2019-04-23
申请号：US16043320
申请日：2018-07-24
IPC分类号： C07C29/00 , C07F15/00 , B01J31/00 , C07C29/128 , B01J31/24 , C07F15/02 , B01J31/18 , B01J31/20 , C07C29/147 , B01J31/02
摘要： A transfer hydrogenation process for forming vicinal diols by hydrogenating 1,2-dioxygenated organic compounds using alcohols as the reducing agent instead of the traditional H2 gas. The transfer hydrogenation is carried out under milder conditions of temperature and pressure than is typical for ester hydrogenation with H2. The milder conditions of operation provide benefits, such as lower operating and capital costs for industrial scale production as well as savings in product purification due to the avoidance of by-products from exposure of reaction mixtures and products to high temperatures.
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公开(公告)号：US20190060887A1
公开(公告)日：2019-02-28
申请号：US16074473
申请日：2017-02-16
IPC分类号： B01J31/16 , B01J37/04 , C07C67/02 , C07D473/16 , C07C67/08 , C07C29/128 , C07C37/055 , C07D317/36 , C07J9/00
摘要： A macromolecules containing metal and a use thereof as a catalyst, said macromolecules containing metal being obtained by causing a ligand to react with a zinc compound or a cobalt compound, said ligand having an imidazole group that is bonded to a macromolecule via a linker.
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公开(公告)号：US20190039977A1
公开(公告)日：2019-02-07
申请号：US16043317
申请日：2018-07-24
发明人： Sumit Chakraborty , Vikram Seshadri , Steven J. Adams , Robert Thomas Hembre , Scott Donald Barnicki
IPC分类号： C07C29/128 , C07F15/02 , B01J31/24
摘要： Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the transfer hydrogenation of esters using C2-C12 alcohols as sacrificial hydrogen donors to produce corresponding alcohols from the esters. No external H2 pressure is required. The reaction can be carried out under ambient pressure.
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公开(公告)号：US09475751B2
公开(公告)日：2016-10-25
申请号：US14646212
申请日：2013-11-19
发明人： Pieter Ooms , Friedhelm Risse , Andre Düx , Carsten Buchaly , Thomas Pancur , Arthur Susanto , Georg Ronge , Johan Vanden Eynde , Wim Wuytack
IPC分类号： C07C68/06 , C07C29/128
CPC分类号： C07C68/065 , C07C29/128 , C07C29/1285 , C07C69/96 , C07C31/202
摘要： The present invention relates to a continuous process for producing lower dialkyl carbonates as a main product and alkylene glycol as a by-product by transesterification of a cyclic alkylene carbonate (e.g. ethylene or propylene carbonate) with lower alkyl alcohols in the presence of a catalyst and also the necessary purification of the dialkyl carbonate in a subsequent process step. For optimization of the economic efficiency and energy efficiency of the process, additional devices are used for intermediate heating of the internal liquid streams within the apparatus.
摘要翻译： 本发明涉及在催化剂存在下，通过环状碳酸亚烷基酯（如乙烯或碳酸亚丙酯）与低级烷基醇的酯交换反应制备作为主要产物的低级碳酸二烷基酯和亚烷基二醇作为副产物的连续方法， 还必须在随后的工艺步骤中纯化碳酸二烷基酯。 为了优化该方法的经济效率和能量效率，使用附加装置来对装置内的内部液体流进行中间加热。
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公开(公告)号：US09212114B2
公开(公告)日：2015-12-15
申请号：US14432258
申请日：2013-10-03
发明人： Paul John Cassidy , Robert Wild , Rikard Umberto Andersson , Simon Nicholas Tilley , Adrian Backes
IPC分类号： C07C29/17 , C07C29/128 , C07C31/125 , C07C29/80 , C07C29/149
CPC分类号： C07C29/17 , C07C29/128 , C07C29/149 , C07C29/80 , C07C31/125 , C07C67/03 , C07C67/08 , C07C69/26 , C07C69/24
摘要： In a process for producing fatty alcohol, fatty acid is subjected to esterification with a lower alkanol to form a stream of lower alkyl fatty acid ester(s). The stream is vaporized and then subjected to hydrogenation. The stream is then subjected to transesterification in a wax ester reactor to convert at least a portion of the lower alkyl fatty acid ester(s) to lower alkanol and wax ester(s). The resulting stream is then separated to yield a fatty alcohol(s) steam, a wax ester(s) stream, and an overhead stream comprising fatty alkanol(s) and alkane. The overhead stream is reacted in a wax ester reactor to convert at least a portion of the lower alkyl fatty acid ester to lower alkanol and wax ester(s). The wax ester(s) formed from the alkane is separated, along with any water and/or lower alkanol present.
摘要翻译： 在生产脂肪醇的方法中，脂肪酸与低级链烷醇进行酯化反应形成低级烷基脂肪酸酯流。 将该物流汽化，然后进行氢化。 然后将该物流在蜡酯反应器中进行酯交换以将至少一部分低级烷基脂肪酸酯转化为低级链烷醇和蜡酯。 然后将所得流分离，得到脂肪醇蒸汽，蜡酯流和包含脂肪链烷醇和烷烃的塔顶物流。 顶部物流在蜡酯反应器中反应以将至少一部分低级烷基脂肪酸酯转化为低级链烷醇和蜡酯。 由烷烃形成的蜡酯与存在的任何水和/或低级链烷醇一起分离。
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公开(公告)号：US08993814B2
公开(公告)日：2015-03-31
申请号：US13389059
申请日：2010-08-02
申请人： Akio Kamimura , Kouji Kaiso , Tsunemi Sugimoto
发明人： Akio Kamimura , Kouji Kaiso , Tsunemi Sugimoto
IPC分类号： C07C27/00 , C07C29/128
CPC分类号： C07C29/128 , Y02P20/544 , C07C31/125 , C07C33/22 , C07C31/20
摘要： Provided is a method for producing an alcohol compound, which enables the alcohol compound to be obtained at a high yield from an amide compound or amine compound. The method for producing an alcohol compound, which is characterized by comprising allowing an alcohol in a supercritical state to act on the amide compound or amine compound in the presence of a carboxylic acid derivative to obtain the alcohol compound.
摘要翻译： 提供一种醇化合物的制造方法，能够从酰胺化合物或胺化合物以高收率得到醇化合物。 醇化合物的制造方法，其特征在于，在羧酸衍生物的存在下，使超临界状态的醇作用于酰胺化合物或胺化合物，得到醇化合物。
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公开(公告)号：US20120157707A1
公开(公告)日：2012-06-21
申请号：US13389059
申请日：2010-08-02
申请人： Akio Kamimura , Kouji Kaiso , Tsunemi Sugimoto
发明人： Akio Kamimura , Kouji Kaiso , Tsunemi Sugimoto
IPC分类号： C07C29/128 , C07C67/08 , C07C37/05
CPC分类号： C07C29/128 , Y02P20/544 , C07C31/125 , C07C33/22 , C07C31/20
摘要： Provided is a method for producing an alcohol compound, which enables the alcohol compound to be obtained at a high yield from an amide compound or amine compound. The method for producing an alcohol compound, which is characterized by comprising allowing an alcohol in a supercritical state to act on the amide compound or amine compound in the presence of a carboxylic acid derivative to obtain the alcohol compound.
摘要翻译： 提供一种醇化合物的制造方法，能够从酰胺化合物或胺化合物以高收率得到醇化合物。 醇化合物的制造方法，其特征在于，在羧酸衍生物的存在下，使超临界状态的醇作用于酰胺化合物或胺化合物，得到醇化合物。
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