公开(公告)号：DE50004440D1

公开(公告)日：2003-12-18

申请号：DE50004440

申请日：2000-08-10

Applicant: BASF AG

Inventor： AUST 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：DE50207455D1

公开(公告)日：2006-08-17

申请号：DE50207455

申请日：2002-12-06

Applicant: BASF AG

Inventor： WESSEL HELGE ,  SEITZ VERENA ,  HARTH KLAUS ,  BOMM VOLKER ,  AUST CHRISTIANE

IPC: B01J37/03 ,  B01J23/70 ,  B01J23/72 ,  B01J23/745 ,  B01J35/10 ,  B01J37/18 ,  C07B61/00 ,  C07C51/097 ,  C07C51/295 ,  C07C227/02 ,  C07C229/22

Abstract: Catalysts (I), for the production of carboxylic acid salts from alcohols, comprise (wt.%): (1) copper; or (2) copper (10-99.9), iron (0.01-90) and at least one other metal (0-50). Catalysts (I) are optionally doped. The hydroxide is prepared by precipitation of copper salt solutions (and/or copper and iron salt solutions with salts of at least one other metal (A)) by coprecipitation with a base and reduction with hydrogen. An Independent claim is included for a process for the production of carboxylic acid salts by reaction of an alcohol of formula (II) with an alkali hydroxide and/or alkaline earth metal hydroxide in water. The reaction is in the presence of a catalyst (I), at 120-280 deg C, and at a pressure between the vapor pressure of water and 75 bar. R = -(OCH2CH2OH) or -NR R ; and R , R = H, phenyl, -CH2CH2OH, 1-20 C alkyl or 2-5C dialkylamino.

公开(公告)号：DE50001895D1

公开(公告)日：2003-05-28

申请号：DE50001895

申请日：2000-08-10

Applicant: BASF AG

Inventor： AUST 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.