公开(公告)号：AT238316T

公开(公告)日：2003-05-15

申请号：AT00951493

申请日：2000-08-10

Applicant: BASF AG

Inventor： AUST NICOLA CHRISTIANE ,  BUTZ THOMAS ,  FISCHER MARTIN

IPC: C07F9/40 ,  C07F9/38

Abstract: The present invention relates to a process for the preparation of phosphonomethylglycine in which N-phosphonomethyliminodiacetic acid N-oxide is brought into contact with a catalytically active quantity of at least one catalyst, selected from amongst a thionyl halide, ammonium dithionite or an alkali metal dithionite, a dialkyl sulfite, sulfur dichloride, sulfur dioxide and sulfurous acid, in a reaction chamber by metering the N-phosphonomethyliminodiacetic acid N-oxide into the reaction chamber in such a way that always at least 50% of the N-oxide metered into the reaction chamber are converted.

公开(公告)号：HU0202530A2

公开(公告)日：2002-10-28

申请号：HU0202530

申请日：2000-08-10

Applicant: BASF AG

Inventor： AUST NICOLA CHRISTIANE ,  BUTZ THOMAS ,  FISCHER MARTIN

IPC: C07F9/40 ,  C07F9/38

Abstract: The present invention relates to a process for the preparation of phosphonomethylglycine in which N-phosphonomethyliminodiacetic acid N-oxide is brought into contact with a catalytically active quantity of at least one catalyst, selected from amongst a thionyl halide, ammonium dithionite or an alkali metal dithionite, a dialkyl sulfite, sulfur dichloride, sulfur dioxide and sulfurous acid, in a reaction chamber by metering the N-phosphonomethyliminodiacetic acid N-oxide into the reaction chamber in such a way that always at least 50% of the N-oxide metered into the reaction chamber are converted.

公开(公告)号：CZ2002495A3

公开(公告)日：2002-08-14

申请号：CZ2002495

申请日：2000-08-10

Applicant: BASF AG

Inventor： AUST NICOLA CHRISTIANE ,  BUTZ THOMAS ,  FISCHER MARTIN

IPC: C07F9/40 ,  C07F9/38

Abstract: The present invention relates to a process for the preparation of phosphonomethylglycine in which N-phosphonomethyliminodiacetic acid N-oxide is brought into contact with a catalytically active quantity of at least one catalyst, selected from amongst a thionyl halide, ammonium dithionite or an alkali metal dithionite, a dialkyl sulfite, sulfur dichloride, sulfur dioxide and sulfurous acid, in a reaction chamber by metering the N-phosphonomethyliminodiacetic acid N-oxide into the reaction chamber in such a way that always at least 50% of the N-oxide metered into the reaction chamber are converted.

公开(公告)号：SK1992002A3

公开(公告)日：2002-07-02

申请号：SK1992002

申请日：2000-08-10

Applicant: BASF AG

Inventor： AUST NICOLA CHRISTIANE ,  BUTZ THOMAS ,  FISCHER MARTIN

IPC: C07F9/40 ,  C07F9/38

Abstract: The present invention relates to a process for the preparation of phosphonomethylglycine in which N-phosphonomethyliminodiacetic acid N-oxide is brought into contact with a catalytically active quantity of at least one catalyst, selected from amongst a thionyl halide, ammonium dithionite or an alkali metal dithionite, a dialkyl sulfite, sulfur dichloride, sulfur dioxide and sulfurous acid, in a reaction chamber by metering the N-phosphonomethyliminodiacetic acid N-oxide into the reaction chamber in such a way that always at least 50% of the N-oxide metered into the reaction chamber are converted.

公开(公告)号：AU6837300A

公开(公告)日：2001-03-13

申请号：AU6837300

申请日：2000-08-10

Applicant: BASF AG

Inventor： AUST NICOLA CHRISTIANE ,  BUTZ THOMAS ,  FISCHER MARTIN

IPC: C07B61/00 ,  C07F9/38

Abstract: The present invention relates to a process for the preparation of phosphonomethylglycine, wherein N-phosphonomethyliminodiacetic acid N-oxide is brought into contact with a catalytically effective amount of thiocyanic acid or a salt thereof.

公开(公告)号：AU6441000A

公开(公告)日：2001-03-13

申请号：AU6441000

申请日：2000-08-10

Applicant: BASF AG

Inventor： AUST NICOLA CHRISTIANE ,  BUTZ THOMAS ,  FISCHER MARTIN

IPC: C07F9/40 ,  C07F9/38

Abstract: The present invention relates to a process for the preparation of phosphonomethylglycine in which N-phosphonomethyliminodiacetic acid N-oxide is brought into contact with a catalytically active quantity of at least one catalyst, selected from amongst a thionyl halide, ammonium dithionite or an alkali metal dithionite, a dialkyl sulfite, sulfur dichloride, sulfur dioxide and sulfurous acid, in a reaction chamber by metering the N-phosphonomethyliminodiacetic acid N-oxide into the reaction chamber in such a way that always at least 50% of the N-oxide metered into the reaction chamber are converted.