公开(公告)号：US20160370330A1

公开(公告)日：2016-12-22

申请号：US15198188

申请日：2016-06-30

Applicant: Monsanto Technology LLC

Inventor： David R. Eaton ,  Walter K. Gavlick ,  Eric A. Haupfear

IPC: G01N31/22 ,  C07F9/38

CPC classification number: G01N31/22 ,  C07F9/3813 ,  G01N31/00 ,  Y10T436/163333 ,  Y10T436/204998

Abstract: 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.

Abstract translation: 本发明涉及从N-（膦酰基甲基）亚氨基二乙酸（“PMIDA”）制备N-（膦酰基甲基）甘氨酸（“草甘膦”），更具体地说，涉及用于控制PMIDA转化的方法，用于鉴定反应 关于PMIDA转化的终点和具有受控PMIDA含量的草甘膦产品的制备。

公开(公告)号：US20210381962A1

公开(公告)日：2021-12-09

申请号：US17348250

申请日：2021-06-15

Applicant: Monsanto Technology LLC

Inventor： 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: G01N21/3577 ,  G01N31/00 ,  C07F9/38 ,  G01N31/22

Abstract: 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.

公开(公告)号：US11067502B2

公开(公告)日：2021-07-20

申请号：US15198188

申请日：2016-06-30

Applicant: Monsanto Technology LLC

Inventor： David R. Eaton ,  Walter K. Gavlick ,  Eric A. Haupfear

IPC: G01N21/3577 ,  C07F9/38 ,  G01N31/00 ,  G01N31/22 ,  G01N21/35

Abstract: 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. One such method involves obtaining a series of Fourier transform infrared (“FTIR”) analyses of the PMIDA content of the aqueous reaction medium or a sample thereof during the course of the reaction. From a plurality of FTIR analyses, a projection is made of the batch reaction time or continuous oxidation residence time within the oxidation reaction zone at which a target conversion or end point may be anticipated to be attained or is attained.