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公开(公告)号：US20230312450A1
公开(公告)日：2023-10-05
申请号：US18003460
申请日：2021-06-28
Applicant: PCC MCAA SP. Z O.O.
Inventor： Marcin Bartman , Paulina Szczepaniak , Dominika Czachór , Katarzyna Komor
IPC: C07C51/50
CPC classification number: C07C51/50
Abstract: An improved method of producing monochloroacetic acid (MCAA) is disclosed, which affords a colorless monochloroacetic acid product in any form that can be obtained by this method.
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公开(公告)号：US20180171035A1
公开(公告)日：2018-06-21
申请号：US15735007
申请日：2016-06-15
Applicant: BASF SE
Inventor： Ann-Kathrin MARGUERRE , Christian RAITH , Christof KUJAT , Friedrich-Georg MARTIN , Daher Michael BADINE , Karolin GEYER , Ansgar SCHAEFER , Nikolaus NESTLE , Murat CETINKAYA , Eduard SCHREINER , Reiner WEILER , Peter ZUROWSKI
CPC classification number: C08F2/42 , C07C51/50 , C08F2/38 , Y02P20/542
Abstract: A composition for the immediate stopping of a free-radical polymerization comprises a) an inhibitor for the free-radical polymerization selected from among phenothiazines, b) an aprotic solvent and c) an ionic liquid. It serves to stabilize free-radically polymerizable monomers against free-radical polymerization. For the immediate stopping of free-radical polymerizations, the composition is added to a free-radically polymerizing system.
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公开(公告)号：US09856202B2
公开(公告)日：2018-01-02
申请号：US15309590
申请日：2015-05-06
Applicant: SOLVAY ACETOW GmbH
Inventor： Thomas Krumrey , Andreas Hummel
CPC classification number: C07C51/445 , B01D3/38 , B27K3/346 , C07C51/44 , C07C51/47 , C07C51/50 , C07C53/08
Abstract: Process for the recovery of carboxylic acid, in particular acetic acid containing carboxylic anhydride in particularacetic anhydride and other impurities, which comprises: (a) treating a fraction, in particular a fraction originating from a wood treatment process, containing carboxylic acid and impurities with a metal salt in the presence of water, (b) treating at least part of the fraction obtained from step (a) to remove metal salt and, (c) treating at least part of the fraction obtained from step (b) by distillation, stripping or membrane separation to recover at least a purified carboxylic acid fraction.
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公开(公告)号：US09738584B2
公开(公告)日：2017-08-22
申请号：US15287105
申请日：2016-10-06
Applicant: Relypsa, Inc.
Inventor： YongQi Mu
IPC: C07C51/36 , C07C51/363 , C07C51/62 , C07C67/307 , C07C67/22 , C07C253/30 , C07C253/32 , C07C51/50 , C07C51/64 , C07C67/03 , C07C67/62
CPC classification number: C07C51/36 , C07C51/363 , C07C51/50 , C07C51/62 , C07C51/64 , C07C67/03 , C07C67/22 , C07C67/307 , C07C67/62 , C07C253/30 , C07C253/32 , C07C69/63 , C07C53/21 , C07C53/50 , C07C255/03
Abstract: The present invention generally relates to processes for converting acrylate esters or a derivative thereof to difluoropropionic acid or a derivative thereof. This process is generally performed using fluorine gas in a hydrofluorocarbon solvent.
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公开(公告)号：US20170158621A1
公开(公告)日：2017-06-08
申请号：US15366758
申请日：2016-12-01
Applicant: BAKER HUGHES INCORPORATED
Inventor： HUA MO , ROGER D. METZLER , HSIN HUANG
IPC: C07C253/32
CPC classification number: C07C253/32 , C07C45/86 , C07C51/50 , C07C67/62 , C07C255/08 , C07C57/04 , C07C69/15 , C07C69/54 , C07C47/22
Abstract: In one embodiment, the present invention provides a method, comprising: a. adding an effective amount of at least one compound selected from the group consisting of a substituted catechol, nitroxide free radicals, a compound of Formula 2, 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl, phenol, hydroxylamine, and phenylene diamine to a solution of a monomer selected from the group consisting of acrylonitrile, acrylic acid, vinylacetate, acrylates and acrolein; b. placing the monomer solution containing the at least one compound in a pressure vessel, pressurizing the pressure vessel and removing oxygen from the pressure vessel; and c. heating the monomer solution containing the at least one compound, wherein the at least one compound inhibits fouling by preventing polymerization of the monomer.
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公开(公告)号：US09630900B2
公开(公告)日：2017-04-25
申请号：US14917983
申请日：2014-09-02
Applicant: BASF SE
Inventor： Tim Blaschke , Ortmund Lang , Nicolai Tonio Wörz , Christian Raith , Marco Hartmann , Marta Zajaczkowski-Fischer
IPC: C07C51/00 , C07C51/377 , C07C51/44 , C07C51/50 , C07C57/04
CPC classification number: C07C51/377 , C07C51/44 , C07C51/50 , C07C57/04
Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the liquid phase comprises an inert organic solvent 1.
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公开(公告)号：US09550710B2
公开(公告)日：2017-01-24
申请号：US14890020
申请日：2014-05-09
Inventor： Paresh Laxmikant Dhepe , Ashutosh Anant Kelkar , Babasaheb Mansub Matsagar , Sandip Kumar Singh
IPC: C07C69/00 , C07C37/00 , C07G1/00 , C08J11/26 , B01J31/02 , C07C1/20 , C07C29/00 , C07C29/86 , C07C29/94 , C07C37/72 , C07C37/88 , C07C41/01 , C07C41/38 , C07C41/46 , C07C45/00 , C07C45/80 , C07C45/86 , C07C51/00 , C07C51/48 , C07C51/50 , C07C67/00 , C07C67/58 , C07C67/62 , C07C27/00
CPC classification number: C07C37/004 , B01J31/0217 , B01J31/0282 , B01J31/0285 , C07C1/20 , C07C27/00 , C07C29/00 , C07C29/86 , C07C29/94 , C07C37/72 , C07C37/88 , C07C41/01 , C07C41/38 , C07C41/46 , C07C45/00 , C07C45/80 , C07C45/86 , C07C51/00 , C07C51/48 , C07C51/50 , C07C67/00 , C07C67/58 , C07C67/62 , C07C2531/02 , C07G1/00 , C08J11/26 , C08J2397/00 , Y02W30/706
Abstract: The present invention discloses a process for depolymerization of lignin to yield substituted phenolic monomers using Brönsted ionic liquid as catalyst under mild reaction conditions to obtain an overall yield of monomers up to 97%.
Abstract translation: 本发明公开了一种使用布朗斯台德离子液体作为催化剂的轻质反应条件下木质素解聚得到取代酚醛单体的方法，以获得高达97％的单体总产率。
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公开(公告)号：US20160168062A1
公开(公告)日：2016-06-16
申请号：US14890020
申请日：2014-05-09
Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
Inventor： Paresh Laxmikant Dhepe , Ashutosh Anant Kelkar , Babasaheb Mansub Matsagar , Sandip Kumar Singh
IPC: C07C37/00 , C07C41/01 , C07C45/86 , C07C45/80 , C07C41/38 , C07C41/46 , C07C67/00 , C07C67/58 , C07C67/62 , C07C51/00 , C07C51/48 , C07C51/50 , C07C37/72 , C07C37/88 , C07C29/00 , C07C29/86 , C07C29/94 , C07C1/20 , B01J31/02 , C07C45/00
CPC classification number: C07C37/004 , B01J31/0217 , B01J31/0282 , B01J31/0285 , C07C1/20 , C07C27/00 , C07C29/00 , C07C29/86 , C07C29/94 , C07C37/72 , C07C37/88 , C07C41/01 , C07C41/38 , C07C41/46 , C07C45/00 , C07C45/80 , C07C45/86 , C07C51/00 , C07C51/48 , C07C51/50 , C07C67/00 , C07C67/58 , C07C67/62 , C07C2531/02 , C07G1/00 , C08J11/26 , C08J2397/00 , Y02W30/706
Abstract: The present invention discloses a process for depolymerization of lignin to yield substituted phenolic monomers using Brönsted ionic liquid as catalyst under mild reaction conditions to obtain an overall yield of monomers up to 97%.
Abstract translation: 本发明公开了一种使用布朗斯台德离子液体作为催化剂在温和反应条件下使木质素解聚得到取代酚醛单体的方法，以获得高达97％的单体总产率。
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公开(公告)号：US20140309419A1
公开(公告)日：2014-10-16
申请号：US14241685
申请日：2012-08-30
Applicant: Anders Riisager , Rasmus Fermann , Robin D. Rogers , Gabriela Gurau
Inventor： Anders Riisager , Rasmus Fermann , Robin D. Rogers , Gabriela Gurau
IPC: C07F9/02 , C07C67/62 , C07C51/50 , C07D473/18
CPC classification number: C07F9/025 , A61K9/143 , C07C51/50 , C07C67/62 , C07D473/18
Abstract: This invention relates to a method for enhancing the thermal stability of ionic compounds including ionic liquids, by immobilization on porous solid support materials having a pore diameter of between about 20-200 Å, wherein the solid support does not have a pore size of 90 Å.
Abstract translation: 本发明涉及通过固定孔径在约20-200之间的多孔固体支持材料来增强包括离子液体在内的离子化合物的热稳定性的方法，其中固体载体不具有孔径 。
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公开(公告)号：US20140221681A1
公开(公告)日：2014-08-07
申请号：US14128899
申请日：2012-06-27
Applicant: YongQi Mu
Inventor： YongQi Mu
IPC: C07C67/307 , C07C51/363
CPC classification number: C07C51/36 , C07C51/363 , C07C51/50 , C07C51/62 , C07C51/64 , C07C67/03 , C07C67/22 , C07C67/307 , C07C67/62 , C07C253/30 , C07C253/32 , C07C69/63 , C07C53/21 , C07C53/50 , C07C255/03
Abstract: The present invention generally relates to processes for converting acrylate esters or a derivative thereof to difluoropropionic acid or a derivative thereof. This process is generally performed using fluorine gas in a hydrofluorocarbon solvent.
Abstract translation: 本发明一般涉及将丙烯酸酯或其衍生物转化为二氟丙酸或其衍生物的方法。 该方法通常在氢氟烃溶剂中使用氟气进行。
