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公开(公告)号：JP2001181254A
公开(公告)日：2001-07-03
申请号：JP2000387369
申请日：2000-12-20
Applicant: BASF AG
Inventor： KESSEL KNUT , SCHERR GUENTER DR , BOGENSTAETTER THOMAS DR , ORSTEN STEFAN , FRANKE DIRK
IPC: C07C277/06 , C07C277/08 , C07C279/14
Abstract: PROBLEM TO BE SOLVED: To provide a method for providing creatine having purity as high as possible in a simple way. SOLUTION: A method for purifying creatine is to introduce creatine to be purified and not containing water of crystallization into a saturated aqueous solution of creatine monohydrate in such a way that the creatine not containing water of crystallization is dissolved under a hydrated condition, to precipitate the crystal of creatine monohydrate from the aqueous solution and to separate the above crystal from the aqueous solution.
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公开(公告)号：WO03000704A3
公开(公告)日：2003-05-01
申请号：PCT/EP0206903
申请日：2002-06-21
Applicant: BASF AG , VANDENMERSCH HUGUES , VOSS HARTWIG , ORSTEN STEFAN , WULFF CHRISTIAN
Inventor： VANDENMERSCH HUGUES , VOSS HARTWIG , ORSTEN STEFAN , WULFF CHRISTIAN
CPC classification number: C07F9/3813
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.
Abstract translation: 本发明涉及一种方法，用于N-膦酰甲基甘氨酸的从含有N-膦酰，卤化铵和碱金属或碱土金属的卤化物以及任选的溶解的有机杂质的含水混合物，其包含（a）所述混合物的pH至一个值的恢复 在2至8的范围内设定，（b）将该混合物在选择性纳米过滤膜的分离使得得到的N-膦酰甲基甘氨酸渗透物中卤化物在N-膦酰甲基甘氨酸更丰富和更差的以卤化物渗余物和更丰富和更差的 和（c）从渗余物中回收N-膦酰基甲基甘氨酸。 本发明的方法允许回收N-膦酰基甲基甘氨酸并同时除去卤化物盐。
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公开(公告)号：MX234328B
公开(公告)日：2006-02-13
申请号：MXPA03011309
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：ES2233846T3
公开(公告)日：2005-06-16
申请号：ES02754734
申请日：2002-06-21
Applicant: BASF AG
Inventor： VANDENMERSCH HUGUES , VOSS HARTWIG , ORSTEN STEFAN , WULFF CHRISTIAN
Abstract: Procedimiento para la obtención de N- fosfonometilglicina a partir de una mezcla acuosa que contiene N-fosfonometilglicina, halogenuros de amonio, así como halogenuros de metales alcalinos o alcalinotérreos y, dado el caso, impurezas orgánicas, en el que: (a) se ajusta el pH de la mezcla a un valor comprendido en el intervalo de 2 a 8, (b) se efectúa una separación de la mezcla en una membrana de nanofiltración selectiva, obteniéndose un retentato enriquecido en N-fosfonometilglicina y empobrecido en halogenuros y un permeato enriquecido en halogenuros y empobrecido en N- fosfonometilglicina y (c) se obtiene la N-fosfonometilglicina a partir del retentato.
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公开(公告)号：NZ530049A
公开(公告)日：2004-08-27
申请号：NZ53004902
申请日：2002-06-21
Applicant: BASF AG
Inventor： VANDENMERSCH HUGUES , VOB HARTWIG , ORSTEN STEFAN , WULFF CHRISTIAN
Abstract: 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 of 2-8; b) a separation of the mixture on a selective nonofiltration membrane is performed, a retentate which is richer in N-phosphonomehtylglycine and poorer in halides and a permeate which is richer in halides and poorer in N-phophonomethylglycine being obtained; and c) the N-phosphonomethylglycine is recovered from the retentate.
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Patent Agency Ranking
公开(公告)号：NZ519593A
公开(公告)日：2003-05-30
申请号：NZ51959300
申请日：2000-12-22
Applicant: BASF AG
Inventor： WULFF CHRISTIAN , ORSTEN STEFAN , OFTRING ALFRED
Abstract: A process for the preparation of N-phosphonomethylglycine, wherein a hexahydrotriazine derivative of the formula (II), wherein X is CN, COOZ, CONR1R2 or CH2OY, is reacted with a triacyl phosphite of the formula P(OCOR3)3 in which the radicals R3 are C1-C18 alkyl, or optionally substituted aryl and the product is hydrolysed and, if X is CH2OY, oxidized.
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公开(公告)号：DE50001372D1
公开(公告)日：2003-04-10
申请号：DE50001372
申请日：2000-12-21
Applicant: BASF AG
Inventor： KESSEL KNUT , SCHERR GUENTER , BOGENSTAETTER THOMAS , ORSTEN STEFAN , FRANKE DIRK
IPC: C07C277/06 , C07C277/08 , C07C279/14
Abstract: Purification of creatine (I) involves adding the (I) to be purified, in anhydrous form, to a saturated aqueous solution of (I) monohydrate, so that the anhydrous (I) is dissolved with hydration, then separating the crystals of (I) monohydrate which precipitate from the solution. An Independent claim is also included for the preparation of (I) monohydrate, by: (a) reacting sarcosine with an guanylating agent in an aqueous medium, so that crude (I) monohydrate is precipitated; (b) separating the crude product form the medium; (c) optionally washing; (d) converting the product into anhydrous (I); (e) adding the anhydrous (I) to a saturated aqueous solution of (I) monohydrate, so that the anhydrous (I) is dissolved with hydration; (f) separating the crystals of (I) monohydrate which precipitate from the solution; and (g) utilizing the aqueous solution at least partially as aqueous medium in step (a) and/or washing liquid in step (c).
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公开(公告)号：CA2451507A1
公开(公告)日：2003-01-03
申请号：CA2451507
申请日：2002-06-21
Applicant: BASF AG
Inventor： VANDENMERSCH HUGUES , WULFF CHRISTIAN , VOSS HARTWIG , ORSTEN STEFAN
Abstract: The invention relates to a method for producing N-phosphonomethylglycine fro m an aqueous mixture containing N-phosphonomethylglycine, ammonium halogenides and alkali halides or earth alkali halides and optionally, organic impuritie s 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：AU5787301A
公开(公告)日：2001-07-09
申请号：AU5787301
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：RU2311420C2
公开(公告)日：2007-11-27
申请号：RU2004101773
申请日：2002-06-21
Applicant: BASF AG
Inventor： ZEHNER PETER , ORSTEN STEFAN , WULFF CHRISTIAN , OFTRING ALFRED
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