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公开(公告)号：DE10130136A1
公开(公告)日：2003-01-02
申请号：DE10130136
申请日：2001-06-22
Applicant: BASF AG
Inventor： VANDENMERSCH HUGUES , VOS HARTWIG , ORSTEN STEFAN , WULFF CHRISTIAN
Abstract: The invention relates to a method for producing N-phosphonomethylglycine from an aqueous mixture containing N-phosphonomethylglycine, ammonium halogenides and alkali halides or earth alkali halides and optionally, organic impurities in a dissolved form. According to the invention, (a) the pH-value of the mixture is regulated to a value of 2 - 8, (b) the mixture is separated by means of a selective nano-filtration membrane, to obtain a retentate rich in N-phosphonomethylglycine and poor in halogenides and a permeate rich in halogenides and poor in N-phosphonomethylglycine and (c) the N-phosphonmethylglycine is prepared from the retentate. The inventive method enables the production of N-phosphonomethylglycine by simultaneously separating the halogenide salts thereof.
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公开(公告)号：AU2002321098B2
公开(公告)日：2007-05-10
申请号：AU2002321098
申请日：2002-06-21
Applicant: BASF AG
Inventor： WULFF CHRISTIAN , ORSTEN STEFAN , OFTRING ALFRED , ZEHNER PETER
Abstract: The invention relates to a process for preparing N-phosphono-methylglycine by reacting a hexahydrotriazine compound with a triacyl phosphite in an organic solvent, hydrolyzing the resulting phosphono compound after prior extraction into an aqueous phase and separation from the organic phase. The process avoids decomposition of the organic solvent during hydrolysis.
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公开(公告)号：DK1401845T3
公开(公告)日：2005-07-18
申请号：DK02754733
申请日：2002-06-21
Applicant: BASF AG
Inventor： ORSTEN STEFAN , ZEHNER PETER , WULFF CHRISTIAN , OFTRING ALFRED
Abstract: The invention relates to a process for preparing N-phosphono-methylglycine by reacting a hexahydrotriazine compound with a triacyl phosphite in an organic solvent, hydrolyzing the resulting phosphono compound after prior extraction into an aqueous phase and separation from the organic phase. The process avoids decomposition of the organic solvent during hydrolysis.
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公开(公告)号：SI1401846T1
公开(公告)日：2005-06-30
申请号：SI200230059
申请日：2002-06-21
Applicant: BASF AG
Inventor： VANDENMERSCH HUGUES , VOSS HARTWIG , ORSTEN STEFAN , WULFF CHRISTIAN
Abstract: The present invention relates to a process for the recovery of N-phosphonomethylglycine from an aqueous mixture which contains N-phosphonomethylglycine, ammonium halides, and alkali metal or alkaline earth metal halides and optionally organic impurities in dissolved form, where (a) the pH of the mixture is adjusted to a value in the range from 2 to 8, (b) a separation of the mixture on a selective nanofiltration membrane is performed, a retentate which is richer in N-phosphonomethylglycine and poorer in halides and a permeate which is richer in halides and poorer in N-phosphonomethylglycine being obtained, and (c) the N-phosphonomethylglycine is recovered from the retentate. The process according to the invention makes possible the recovery of the N-phosphonomethylglycine with simultaneous separation of the halide salts.
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公开(公告)号：PT1401846E
公开(公告)日：2005-04-29
申请号：PT02754734
申请日：2002-06-21
Applicant: BASF AG
Inventor： VOSS HARTWIG , ORSTEN STEFAN , WULFF CHRISTIAN , HUGUES VANDENMERSCH
Abstract: The present invention relates to a process for the recovery of N-phosphonomethylglycine from an aqueous mixture which contains N-phosphonomethylglycine, ammonium halides, and alkali metal or alkaline earth metal halides and optionally organic impurities in dissolved form, where (a) the pH of the mixture is adjusted to a value in the range from 2 to 8, (b) a separation of the mixture on a selective nanofiltration membrane is performed, a retentate which is richer in N-phosphonomethylglycine and poorer in halides and a permeate which is richer in halides and poorer in N-phosphonomethylglycine being obtained, and (c) the N-phosphonomethylglycine is recovered from the retentate. The process according to the invention makes possible the recovery of the N-phosphonomethylglycine with simultaneous separation of the halide salts.
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Patent Agency Ranking
公开(公告)号：MX225445B
公开(公告)日：2005-01-06
申请号：MXPA02006081
申请日：2000-12-22
Applicant: BASF AG
Inventor： WULFF CHRISTIAN , ORSTEN STEFAN , OFTRING ALFRED
Abstract: The present invention relates to a process for the preparation of N-phosphonomethylglycine by reacting a hexahydrotriazine derivative with a triacyl phosphite. The process gives N-phosphonomethylglycine in high yield and in a simple and inexpensive manner.
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公开(公告)号：IN2032CH2003A
公开(公告)日：2004-12-11
申请号：IN2032CH2003
申请日：2003-12-03
Applicant: BASF AG
Inventor： WULFF CHRISTIAN , ORSTEN STEFAN , OFTRING ALFRED , ZEHNER PETER
Abstract: The invention relates to a process for preparing N-phosphono-methylglycine by reacting a hexahydrotriazine compound with a triacyl phosphite in an organic solvent, hydrolyzing the resulting phosphono compound after prior extraction into an aqueous phase and separation from the organic phase. The process avoids decomposition of the organic solvent during hydrolysis.
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公开(公告)号：AR034597A1
公开(公告)日：2004-03-03
申请号：ARP020102292
申请日：2002-06-19
Applicant: BASF AG
Inventor： VANDENMERSCH H , ORSTEN STEFAN , WULFF CHRISTIAN , VOS HARTWIG
Abstract: Procedimiento para la obtención de N-fosfonometilglicina de la fórmula (1) a partir de una mezcla acuosa que contiene disueltos en la misma N-fosfonometilglicina, halogenuros de amonio, así como también halogenuros de metales alcalinos o alcalinotérreos y eventualmente impurezas orgánicas, en donde a) se ajusta el pH de la mezcla a un valor en el rango de 2 a 8; b) se realiza una separación de la mezcla en una membrana de nanofiltración selectiva, obteniéndose un retentato más rico en N-fosfonometilglicina y más pobre en halogenuros y un permeato más rico en halogenuros y más pobre en N-fosfonometilglicina; y c) se obtiene N-fosfonometilglicina a partir de retentato. El procedimiento descripto permite la obtención de la N-fosfonometilglicina con separación simultánea de las sales de halogenuros. La N-fosfonometilglicina, también conocida como glifosato, es un herbicida total ampliamente utilizado en el agro.
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公开(公告)号：AR034596A1
公开(公告)日：2004-03-03
申请号：ARP020102291
申请日：2002-06-19
Applicant: BASF AG
Inventor： WULFF CHRISTIAN , ORSTEN STEFAN , OFTRING ALFRED , ZEHNER PETER
Abstract: Procedimiento para la preparación de N-fosfonometilglicina de la fórmula (1) en la que a) se hace reaccionar un derivado de hexadihidrotriazina de la fórmula (2) en donde X representa CN, COOZ, CONR1R2 o CH2OY, Y representa H o un resto que puede ser intercambiado fácilmente por H; Z representa H, un metal alcalino, un metal alcalinotérreo, alquilo C1-18 o arilo opcionalmente sustituido por alquilo C1-4, NO2 o OC1-C4-alquilo; R1 y R2 que pueden ser iguales o diferentes, representan H o alquilo C1-4 con un triacilfosfito de la fórmula (3): P(OCOR3)3 en donde los restos R3, que pueden ser iguales o diferentes, representan alquilo C1-18 o arilo, que está opcionalmente sustituido por alquilo C1-4, NO2 o OC1-4-alquilo en un solvente orgánico; b) se extrae la mezcla de reacción obtenida con agua o una solución acuosa de un ácido o una solución acuosa de una base; c) se separan las fases; y d) se hidroliza el producto obtenido en la fase acuosa. Por este procedimiento se evita la descomposición del solvente orgánico durante la saponificación. La fosfonometilglicina o glifosato es un herbicida total que es utilizado ampliamente.
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公开(公告)号：PT1240173E
公开(公告)日：2003-10-31
申请号：PT00993613
申请日：2000-12-22
Applicant: BASF AG
Inventor： OFTRING ALFRED , ORSTEN STEFAN , WULFF CHRISTIAN
Abstract: The present invention relates to a process for the preparation of N-phosphonomethylglycine by reacting a hexahydrotriazine derivative with a triacyl phosphite. The process gives N-phosphonomethylglycine in high yield and in a simple and inexpensive manner.
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