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公开(公告)号：US10343965B2
公开(公告)日：2019-07-09
申请号：US15578869
申请日：2016-05-31
发明人： Kam-To Wan , Eduardo A. Casanova , John H. Ahn , Junqiu Yang
IPC分类号： C02F1/20 , C02F1/26 , C02F1/66 , C07C37/72 , C07C37/74 , C07C37/84 , C07C39/30 , C07C51/09 , C07C51/15 , C07C65/05 , C07C65/21 , C07C67/31 , C07C69/92 , C02F101/34 , C02F101/36 , C07C51/347
摘要： Various processes for the separation of a mixture containing dichlorophenols are described. In various aspects, the present invention relates to separation processes that produce an extract enriched in 2,4-dichlorophenol content and an extract enriched in 2,5-dichlorophenol content. The present invention further relates to various processes that integrate with these separation processes, such as a process for producing 3,6-dichloro-2-methoxybenzoic acid (dicamba) or salt or ester thereof or a process for producing 2,4-dichlorophenoxyacetic acid (2,4-D) or salt or ester thereof.
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公开(公告)号：US20210381962A1
公开(公告)日：2021-12-09
申请号：US17348250
申请日：2021-06-15
发明人： Donald D. Soleta , David R. Eaton , Peter E. Rogers , Eduardo A. Casanova , John Wagenknecht , Leonard Aynardi , David Z. Becher , Robert E. Byrd , James P. Coleman , Walter K. Gavlick , Eric A. Haupfear , Oliver Lerch , Carl Mumford , Alfredo Oba , Stephen D. Prosch , Bart Roose , Mark D. Scaia , Lowell R. Smith
IPC分类号： G01N21/3577 , G01N31/00 , C07F9/38 , G01N31/22
摘要： This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.
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公开(公告)号：US11802835B2
公开(公告)日：2023-10-31
申请号：US17348250
申请日：2021-06-15
CPC分类号： G01N21/3577 , C07F9/3813 , G01N31/00 , G01N31/22 , G01N33/0004 , B01J2219/00202 , G01N2021/3595 , G01N2201/1222 , Y10T436/163333 , Y10T436/204998 , Y10T436/207497 , Y10T436/209163
摘要： This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.
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公开(公告)号：US20180179132A1
公开(公告)日：2018-06-28
申请号：US15578869
申请日：2016-05-31
发明人： John H. Ahn , Eduardo A. Casanova , Kam-To Wan , Junqiu Yang
IPC分类号： C07C37/72 , C07C51/15 , C07C51/347 , C07C67/31
CPC分类号： C07C37/72 , C02F1/20 , C02F1/26 , C02F1/66 , C02F2101/345 , C02F2101/36 , C07C37/74 , C07C37/84 , C07C39/30 , C07C51/09 , C07C51/15 , C07C51/347 , C07C67/31 , C07C65/05 , C07C69/92 , C07C65/21
摘要： Various processes for the separation of a mixture containing dichlorophenols are described. In various aspects, the present invention relates to separation processes that produce an extract enriched in 2,4-dichlorophenol content and an extract enriched in 2,5-dichlorophenol content. The present invention further relates to various processes that integrate with these separation processes, such as a process for producing 3,6-dichloro-2-methoxybenzoic acid (dicamba) or salt or ester thereof or a process for producing 2,4-dichlorophenoxyacetic acid (2,4-D) or salt or ester thereof.
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