公开(公告)号：UA87389C2

公开(公告)日：2009-07-10

申请号：UAA200713656

申请日：2006-05-02

Applicant: BASF AG

Inventor： OFTRING ALFRED ,  BRAUN GEROLD ,  WIRSING FRIEDRICH ,  STAMM ARMIN ,  BALDENIUS KAI-UWE

IPC: C07C227/00 ,  C07C229/16

公开(公告)号：CA2607232A1

公开(公告)日：2006-11-16

申请号：CA2607232

申请日：2006-05-02

Applicant: BASF AG

Inventor： BRAUN GEROLD ,  OFTRING ALFRED ,  BALDENIUS KAI-UWE ,  STAMM ARMIN ,  WIRSING FRIEDRICH

IPC: C07C227/26 ,  C07C229/16

Abstract: The invention relates to a process for preparing low-by-product, light-color methylglycine-N,N-diacetic acid tri(alkali metal) salt by alkaline hydrolysis of methylglycinediacetonitrile (MGDN), comprising the steps in the sequence (a) to (f): (a) mixing of MGDN with aqueous alkali at a temperature of ≦̸30° C.; (b) allowing the aqueous alkaline MGDN suspension to react at a temperature in the range from 10 to 30° C. over a period of from 0.1 to 10 h to form a solution; (c) allowing the solution from step (b) to react at a temperature in the range from 30 to 40° C. over a period of from 0.1 to 10 h; (d) optionally allowing the solution from step (c) to react at a temperature in the range from 50 to 80° C. over a period of from 0.5 to 2 h; (e) optionally allowing the solution from step (c) or (d) to react at a temperature in the range from 110 to 200° C. over a period of from 5 to 60 min; (f) hydrolysis and removal of ammonia of the solution obtained in step (c), (d) or (e) by stripping at a temperature of from 90 to 105° C.

公开(公告)号：AU2006245816A1

公开(公告)日：2006-11-16

申请号：AU2006245816

申请日：2006-05-02

Applicant: BASF AG

Inventor： BRAUN GEROLD ,  STAMM ARMIN ,  WIRSING FRIEDRICH ,  OFTRING ALFRED ,  BALDENIUS KAI-UWE

IPC: C07C227/26 ,  C07C229/16

Abstract: The invention relates to a process for preparing low-by-product, light-color methylglycine-N,N-diacetic acid tri(alkali metal) salt by alkaline hydrolysis of methylglycinediacetonitrile (MGDN), comprising the steps in the sequence (a) to (f): (a) mixing of MGDN with aqueous alkali at a temperature of ≦̸30° C.; (b) allowing the aqueous alkaline MGDN suspension to react at a temperature in the range from 10 to 30° C. over a period of from 0.1 to 10 h to form a solution; (c) allowing the solution from step (b) to react at a temperature in the range from 30 to 40° C. over a period of from 0.1 to 10 h; (d) optionally allowing the solution from step (c) to react at a temperature in the range from 50 to 80° C. over a period of from 0.5 to 2 h; (e) optionally allowing the solution from step (c) or (d) to react at a temperature in the range from 110 to 200° C. over a period of from 5 to 60 min; (f) hydrolysis and removal of ammonia of the solution obtained in step (c), (d) or (e) by stripping at a temperature of from 90 to 105° C.

公开(公告)号：DE10051196A1

公开(公告)日：2002-05-08

申请号：DE10051196

申请日：2000-10-16

Applicant: BASF AG

Inventor： GREINDL THOMAS ,  BRAUN GEROLD ,  WIRSING FRIEDRICH ,  KRUG GEORG

IPC: C07C253/00 ,  C07C255/04 ,  C07C255/05 ,  C07C255/24 ,  C07C253/06

Abstract: Cyanoalkylation of ammonia or organic compounds containing one or more NH functions, by reaction with a carbonyl compound and hydrocyanic acid in a solvent, is carried out in two stages comprising a first stage (i) at a temperature (T1) below the boiling point of the reaction mixture, and a second stage (i) at a temperature (T2) below 150 degrees C. Cyanoalkylation of ammonia or organic compounds containing one or more NH functions, by reaction with a carbonyl compound and hydrocyanic acid (each at 1 mol per NH function to be converted) in a solvent, is carried out in two stages comprising a first stage (i) at a temperature (T1) below the boiling point of the reaction mixture, carried out until the degree of HCN conversion is at least 60% and a second stage (i) at a temperature (T2) below 150degreesC, carried out until the degree of HCN conversion is at least 90%. An Independent claim is included for alpha -cyanoalkylamines (I) obtained by the process.

公开(公告)号：AU2006245816B2

公开(公告)日：2011-04-14

申请号：AU2006245816

申请日：2006-05-02

Applicant: BASF AG

Inventor： BRAUN GEROLD ,  STAMM ARMIN ,  WIRSING FRIEDRICH ,  OFTRING ALFRED ,  BALDENIUS KAI-UWE

IPC: C07C227/26 ,  C07C229/16

Abstract: The invention relates to a process for preparing low-by-product, light-color methylglycine-N,N-diacetic acid tri(alkali metal) salt by alkaline hydrolysis of methylglycinediacetonitrile (MGDN), comprising the steps in the sequence (a) to (f): (a) mixing of MGDN with aqueous alkali at a temperature of ≦̸30° C.; (b) allowing the aqueous alkaline MGDN suspension to react at a temperature in the range from 10 to 30° C. over a period of from 0.1 to 10 h to form a solution; (c) allowing the solution from step (b) to react at a temperature in the range from 30 to 40° C. over a period of from 0.1 to 10 h; (d) optionally allowing the solution from step (c) to react at a temperature in the range from 50 to 80° C. over a period of from 0.5 to 2 h; (e) optionally allowing the solution from step (c) or (d) to react at a temperature in the range from 110 to 200° C. over a period of from 5 to 60 min; (f) hydrolysis and removal of ammonia of the solution obtained in step (c), (d) or (e) by stripping at a temperature of from 90 to 105° C.

公开(公告)号：NO20075532L

公开(公告)日：2008-02-04

申请号：NO20075532

申请日：2007-11-02

Applicant: BASF AG

Inventor： OFTRING ALFRED ,  BRAUN GEROLD ,  WIRSING FRIEDRICH ,  STAMM ARMIN ,  KAI-UWE BALDENIUS

IPC: C07C227/26

Abstract: The invention relates to a process for preparing low-by-product, light-color methylglycine-N,N-diacetic acid tri(alkali metal) salt by alkaline hydrolysis of methylglycinediacetonitrile (MGDN), comprising the steps in the sequence (a) to (f): (a) mixing of MGDN with aqueous alkali at a temperature of ≦̸30° C.; (b) allowing the aqueous alkaline MGDN suspension to react at a temperature in the range from 10 to 30° C. over a period of from 0.1 to 10 h to form a solution; (c) allowing the solution from step (b) to react at a temperature in the range from 30 to 40° C. over a period of from 0.1 to 10 h; (d) optionally allowing the solution from step (c) to react at a temperature in the range from 50 to 80° C. over a period of from 0.5 to 2 h; (e) optionally allowing the solution from step (c) or (d) to react at a temperature in the range from 110 to 200° C. over a period of from 5 to 60 min; (f) hydrolysis and removal of ammonia of the solution obtained in step (c), (d) or (e) by stripping at a temperature of from 90 to 105° C.

公开(公告)号：MX2007013702A

公开(公告)日：2008-01-21

申请号：MX2007013702

申请日：2006-05-02

Applicant: BASF AG

Inventor： STAMM ARMIN ,  BALDENIUS KAI-UWE ,  OFTRING ALFRED ,  BRAUN GEROLD ,  WIRSING FRIEDRICH

IPC: C07C227/26 ,  C07C229/16

Abstract: La invencion se relaciona con un metodo para producir una sal de metal trialcalino de acido metilglicina-N,N-dietanoico de color claro con un bajo contenido de producto secundario, mediante la hidrolisis alcalina de diacetonitrilo de metilglicina, el metodo comprende pasos que se llevan a cabo en el orden (a) a (f): (a) mezclado del diacetonitrilo de metilglicina con una lejia de alcali acuoso a una temperatura de = 30 degree C; (b) la suspension de diacetonitrilo de metilglicina alcalina acuosa luego se hace reaccionar a una temperatura que varia entre 10 y 30 degree C durante un periodo de 0.1 a 10 horas, para formar una solucion; (c) la solucion obtenida en el paso (b) luego se hace reaccionar a una temperatura que varia entre 30 y 40 degree C durante un periodo de 0.1 a 10 horas; (d) opcionalmente la solucion obtenida en el paso (c) se hace reaccionar a una temperatura que varia entre 50 y 80 degree C durante un periodo de entre 0.5 y 2 h; (e) opcionalmente la solucion obtenida en el paso (c) o (d) se hace reaccionar a una temperatura que varia entre 110 y 200 degree C durante un periodo de entre 5 y 60 minutos; (f) hidrolisis y aislamiento de amoniaco de la solucion obtenida en el paso (c), (d) o (e) separando a una temperatura de entre 90 y 105 degree C.

公开(公告)号：DE59808082D1

公开(公告)日：2003-05-28

申请号：DE59808082

申请日：1998-08-17

Applicant: BASF AG

Inventor： RAHM RAINER ,  GREINDL THOMAS ,  OFTRING ALFRED ,  OETTER GUENTER ,  DETERING JUERGEN ,  BRAUN GEROLD

IPC: C07C229/08 ,  C07C229/16 ,  C07C253/00 ,  C07C255/25 ,  C07D233/72 ,  C07D233/74

Abstract: A process for preparing compounds of the formula IIb where R is C6-C30-alkyl or C6-C30-alkenyl, which may additionally have upto 5 hydroxyl groups, formyl groups, C1-C4-alkoxy groups, phenoxy groups or C1-C4-alkoxycarbonyl groups as substituents and may be interrupted by upto 5 nonadjacent oxygen atoms, or alkoxylate groups of the formula -(CH2)k-O-(A1O)m-(A2O)n-Y where A1 and A2 are, independently of one another, 1,2-alkylene groups having 2 to 4 carbon atoms, Y is hydrogen, C1-C12-alkyl, phenyl or C1-C4-alkoxycarbonyl, and k is 1, 2 or 3, and m and n are each numbers from 0 to 50, and the total of m+n must be at least 4,by reacting iminodiacetonitrile with aldehydes of the formula R-CHO and HCN or alkali metal cyanides, the process being carried outa) in the absence of an organic solvent and in the presence of a Lewis or Brönsted acid, orb) in the presence or absence of an organic solvent and in the presence of an emulsifier, orc) in the presence or absence of an organic solvent and under a pressure in the range from 1 to 40 bar.