公开(公告)号：WO02055527A8

公开(公告)日：2003-03-13

申请号：PCT/EP0200225

申请日：2002-01-11

Applicant: BASF AG ,  MAASE MATTHIAS ,  DROEGEMUELLER MICHAEL

Inventor： MAASE MATTHIAS ,  DROEGEMUELLER MICHAEL

IPC: C07F9/38

CPC classification number: C07F9/3808

Abstract: The invention relates to a method for producing N-phosphonomethyl iminodiacetic acid by reacting an alkali metal salt of iminodiacetic acid with phosphorus trichloride in an aqueous solution, forming iminodiacetic acid hydrochloride, phosphoric acid and corresponding alkali metal chloride. A reaction then takes place with a formaldehyde source and the N-phosphonomethyl iminodiacetic acid desired is obtained from the reaction mixture. During and/or after the reaction of the alkali metal salt of the iminodiacetic acid with phosphorus trichloride, water, optionally containing HCl, is removed from the reaction mixture until there is a concentration of iminodiacetic acid hydrochloride of at least 40 wt. %, in relation to the weight of the reaction mixture minus the weight of the alkali metal chloride. The inventive method enables N-phosphonomethyl iminodiacetic acid to be produced simply and in large quantities.

Abstract translation: 本发明涉及一种通过亚氨基二乙酸与三氯化在水溶液磷的碱金属盐反应来制备N-膦酸，以形成亚氨基二乙酸，亚磷酸和肠溶发言碱金属氯化物，随后与甲醛源反应和的盐酸的过程中，如果需要的话，回收来自N-膦酸 反应混合物中，由此一个过程中和/或使Umsetung亚氨基二乙酸与含三氯化磷水gegebenengalls HC1的碱金属盐中，从反应混合物中除去直到至少40重量％亚氨基二乙酸的盐酸的浓度，基于所述权重 反应混合物减的碱金属氯化物的重量和存在。 该方法能够生产N-膦容易且以高收率 -

公开(公告)号：HU228793B1

公开(公告)日：2013-05-28

申请号：HU0300766

申请日：2001-08-16

Applicant: BASF AG

Inventor： ISAK HEINZ ,  SENDHOFF NORBERT ,  SCHUETZ FRANZ ,  THERRE JOERG ,  DROEGEMUELLER MICHAEL ,  FRANKE DIRK ,  MUNZINGER MANFRED ,  WECK ALEXANDER ,  BURKART KIRSTEN

IPC: C07D285/34 ,  A01N25/12 ,  A01N43/88

Abstract: Described is a process for the preparation of a particulate tetrahydro-3,5-dimethyl-1,3,5-thiadiazine-2-thione product by combining a first aqueous solution comprising methylammonium N-methyldithiocarbamate with a second aqueous solution comprising formaldehyde, followed by separation and drying of the resulting solid, which comprises combining the first and the second aqueous solutions in such a way that the ratio between the concentrations of dithiocarbamate functions and of formaldehyde is essentially constant in the reaction mixture over time during the duration of the reaction.

公开(公告)号：BR0206373A

公开(公告)日：2003-12-23

申请号：BR0206373

申请日：2002-01-11

Applicant: BASF AG

Inventor： MAASE MATTHIAS ,  DROEGEMUELLER MICHAEL

IPC: C07F9/38

Abstract: The present invention relates to a process for the preparation of N-phosphonomethyliminodiacetic acid by reacting an alkali metal salt of iminodiacetic acid with phosphorus trichloride in aqueous solution with formation of the hydrochloride of iminodiacetic acid, phosphorous acid and of the corresponding alkali metal chloride, followed by reaction with a formaldehyde source and, if desired, recovery of the N-phosphonomethyliminodiacetic acid from the reaction mixture, in which water, which may comprise HCl, is removed from the reaction mixture during and/or after reacting the alkali metal salt of iminodiacetic acid with phosphorus trichloride until the concentration of iminodiacetic acid hydrochloride is at least 40% by weight, based on the weight of the reaction mixture minus the weight of alkali metal chloride. The process makes possible the preparation of N-phosphonomethyliminodiacetic acid in a simple fashion and in high yield.

公开(公告)号：CZ304039B6

公开(公告)日：2013-09-04

申请号：CZ2003442

申请日：2001-08-16

Applicant: BASF AG

Inventor： ISAK HEINZ ,  SENDHOFF NORBERT ,  SCHUETZ FRANZ ,  THERRE JOERG ,  DROEGEMUELLER MICHAEL ,  FRANKE DIRK ,  MUNZINGER MANFRED ,  WECK ALEXANDER ,  BURKART KRISTEN

IPC: C07D285/34 ,  A01N25/12 ,  A01N43/82 ,  A01N43/88

Abstract: Je popsán zpusob prípravy produktu z tetrahydro-3,5-dimethyl-1,3,5-thiadiazin-2-thionu, který má takovou distribuci cástic, ze méne nez 7 % hmotnostních techto cástic má prumer cástic mensí nez 100 .mi.m, nad 50 % hmotnostních techto cástic má prumer cástic mensí nez 200 .mi.m, nad 90 % hmotnostních techto cástic má prumer cástic mensí nez 300 .mi.m a nad 95 % hmotnostních techto cástic má prumer cástic mensí nez 400 .mi.m, pri kterém se spojí první vodný roztok obsahující methylamonium-(N-methyldithiokarbamát) s druhým vodným roztokem obsahujícím formaldehyd s následujícím oddelením a vysusením výsledné tuhé látky, pricemz pomer mezi koncentracemi dithiokarbamátových funkcních skupin a formaldehydu je v reakcní smesi v prubehu trvání reakce konstantní nebo je v rozmezí .+-. 20 % stechiometricky pozadovaného mnozství pouzitého reakcního cinidla, a tuhá látka se oddelí z výsledné suspenze..sub. .n.

公开(公告)号：SI1353930T1

公开(公告)日：2005-02-28

申请号：SI200230026

申请日：2002-01-11

Applicant: BASF AG

Inventor： MAASE MATTHIAS ,  DROEGEMUELLER MICHAEL

IPC: C07F9/38

Abstract: The present invention relates to a process for the preparation of N-phosphonomethyliminodiacetic acid by reacting an alkali metal salt of iminodiacetic acid with phosphorus trichloride in aqueous solution with formation of the hydrochloride of iminodiacetic acid, phosphorous acid and of the corresponding alkali metal chloride, followed by reaction with a formaldehyde source and, if desired, recovery of the N-phosphonomethyliminodiacetic acid from the reaction mixture, in which water, which may comprise HCl, is removed from the reaction mixture during and/or after reacting the alkali metal salt of iminodiacetic acid with phosphorus trichloride until the concentration of iminodiacetic acid hydrochloride is at least 40% by weight, based on the weight of the reaction mixture minus the weight of alkali metal chloride. The process makes possible the preparation of N-phosphonomethyliminodiacetic acid in a simple fashion and in high yield.

公开(公告)号：DK1353930T3

公开(公告)日：2004-12-06

申请号：DK02708274

申请日：2002-01-11

Applicant: BASF AG

Inventor： DROEGEMUELLER MICHAEL ,  MAASE MATTHIAS

IPC: C07F9/38

Abstract: The present invention relates to a process for the preparation of N-phosphonomethyliminodiacetic acid by reacting an alkali metal salt of iminodiacetic acid with phosphorus trichloride in aqueous solution with formation of the hydrochloride of iminodiacetic acid, phosphorous acid and of the corresponding alkali metal chloride, followed by reaction with a formaldehyde source and, if desired, recovery of the N-phosphonomethyliminodiacetic acid from the reaction mixture, in which water, which may comprise HCl, is removed from the reaction mixture during and/or after reacting the alkali metal salt of iminodiacetic acid with phosphorus trichloride until the concentration of iminodiacetic acid hydrochloride is at least 40% by weight, based on the weight of the reaction mixture minus the weight of alkali metal chloride. The process makes possible the preparation of N-phosphonomethyliminodiacetic acid in a simple fashion and in high yield.

公开(公告)号：TR200402620T4

公开(公告)日：2004-11-22

申请号：TR200402620

申请日：2002-01-11

Applicant: BASF AG

Inventor： MAASE MATTHIAS ,  DROEGEMUELLER MICHAEL

IPC: C07F9/38

Abstract: The present invention relates to a process for the preparation of N-phosphonomethyliminodiacetic acid by reacting an alkali metal salt of iminodiacetic acid with phosphorus trichloride in aqueous solution with formation of the hydrochloride of iminodiacetic acid, phosphorous acid and of the corresponding alkali metal chloride, followed by reaction with a formaldehyde source and, if desired, recovery of the N-phosphonomethyliminodiacetic acid from the reaction mixture, in which water, which may comprise HCl, is removed from the reaction mixture during and/or after reacting the alkali metal salt of iminodiacetic acid with phosphorus trichloride until the concentration of iminodiacetic acid hydrochloride is at least 40% by weight, based on the weight of the reaction mixture minus the weight of alkali metal chloride. The process makes possible the preparation of N-phosphonomethyliminodiacetic acid in a simple fashion and in high yield.

公开(公告)号：PL361460A1

公开(公告)日：2004-10-04

申请号：PL36146001

申请日：2001-08-16

Applicant: BASF AG

Inventor： ISAK HEINZ ,  SENDHOFF NORBERT ,  SCHUETZ FRANZ ,  THERRE JOERG ,  DROEGEMUELLER MICHAEL ,  FRANKE DIRK ,  MUNZINGER MANFRED ,  WECK ALEXANDER ,  BURKART KIRSTEN

IPC: A01N25/12 ,  A01N43/88 ,  C07D285/34

Abstract: Described is a process for the preparation of a particulate tetrahydro-3,5-dimethyl-1,3,5-thiadiazine-2-thione product by combining a first aqueous solution comprising methylammonium N-methyldithiocarbamate with a second aqueous solution comprising formaldehyde, followed by separation and drying of the resulting solid, which comprises combining the first and the second aqueous solutions in such a way that the ratio between the concentrations of dithiocarbamate functions and of formaldehyde is essentially constant in the reaction mixture over time during the duration of the reaction.

公开(公告)号：AT273315T

公开(公告)日：2004-08-15

申请号：AT02708274

申请日：2002-01-11

Applicant: BASF AG

Inventor： MAASE MATTHIAS ,  DROEGEMUELLER MICHAEL

IPC: C07F9/38

Abstract: The present invention relates to a process for the preparation of N-phosphonomethyliminodiacetic acid by reacting an alkali metal salt of iminodiacetic acid with phosphorus trichloride in aqueous solution with formation of the hydrochloride of iminodiacetic acid, phosphorous acid and of the corresponding alkali metal chloride, followed by reaction with a formaldehyde source and, if desired, recovery of the N-phosphonomethyliminodiacetic acid from the reaction mixture, in which water, which may comprise HCl, is removed from the reaction mixture during and/or after reacting the alkali metal salt of iminodiacetic acid with phosphorus trichloride until the concentration of iminodiacetic acid hydrochloride is at least 40% by weight, based on the weight of the reaction mixture minus the weight of alkali metal chloride. The process makes possible the preparation of N-phosphonomethyliminodiacetic acid in a simple fashion and in high yield.

公开(公告)号：DK1309578T3

公开(公告)日：2004-06-28

申请号：DK01976093

申请日：2001-08-16

Applicant: BASF AG

Inventor： SENDHOFF NORBERT ,  FRANKE DIRK ,  ISAK HEINZ ,  SCHUETZ FRANZ ,  THERRE JOERG ,  DROEGEMUELLER MICHAEL ,  MUNZINGER MANFRED ,  WECK ALEXANDER ,  BURKART KIRSTEN

IPC: A01N25/12 ,  A01N43/88 ,  C07D285/34

Abstract: Described is a process for the preparation of a particulate tetrahydro-3,5-dimethyl-1,3,5-thiadiazine-2-thione product by combining a first aqueous solution comprising methylammonium N-methyldithiocarbamate with a second aqueous solution comprising formaldehyde, followed by separation and drying of the resulting solid, which comprises combining the first and the second aqueous solutions in such a way that the ratio between the concentrations of dithiocarbamate functions and of formaldehyde is essentially constant in the reaction mixture over time during the duration of the reaction.