公开(公告)号：IN1211CH2004A

公开(公告)日：2006-02-10

申请号：IN1211CH2004

申请日：2004-06-01

Applicant: BASF AG

Inventor： KLOPP INGO ,  BOGENSTAETTER THOMAS ,  FRANKE DIRK

IPC: C07C51/41 ,  C07C20060101 ,  C07C63/00 ,  C07C63/04 ,  C07C63/08

Abstract: A process is described for preparing ammonium salts of aromatic carboxylic acids by reacting an aromatic carboxylic acid with ammonia in an aprotic solvent, which comprises carrying out the reaction in a closed vessel by continuously introducing a solution of the aromatic carboxylic acid in the aprotic solvent and passing in gaseous ammonia so that an ammonia partial pressure in the range from 0.1 to 3 bar is maintained in the gas space of the vessel, and discharging a suspension of the ammonium salt in the aprotic solvent. The process allows the preparation of ammonium salts of defined crystal size having a narrow size distribution.

公开(公告)号：IN432CH2004A

公开(公告)日：2005-12-23

申请号：IN432CH2004

申请日：2004-03-01

Applicant: BASF AG

Inventor： KLOPP INGO ,  BOGENSTAETTER THOMAS ,  FRANKE DIRK ,  MUNZINGER MANFRED

IPC: B01J8/08 ,  B01J8/00 ,  B01J8/06 ,  B01J8/20 ,  B01J19/00 ,  B01J19/24 ,  C07F9/141 ,  C07F9/38 ,  C07F9/40

Abstract: A process for carrying out a liquid/solid reaction comprises a) preparing a reaction suspension in which a first reactant is present in suspended form and a second reactant is present in dissolved form in a suspension medium, where one of the reaction products is insoluble in the suspension medium, b) passing the reaction suspension through an elongated reaction zone so that the Reynolds number of the stream is less than 20,000 and c) separating off the insoluble reaction product formed. The process has the advantage that the insoluble reaction product is obtained in a readily filterable form.

公开(公告)号：SI1423187T1

公开(公告)日：2005-08-31

申请号：SI200230122

申请日：2002-08-29

Applicant: BASF AG

Inventor： KLOPP INGO ,  BOGENSTAETTER THOMAS ,  FRANKE DIRK ,  MUNZINGER MANFRED

IPC: B01J8/00 ,  B01J8/06 ,  B01J8/20 ,  B01J19/00 ,  B01J19/24 ,  B01J8/08 ,  C07F9/141 ,  C07F9/38 ,  C07F9/40

Abstract: A process for carrying out a liquid/solid reaction comprises a) preparing a reaction suspension in which a first reactant is present in suspended form and a second reactant is present in dissolved form in a suspension medium, where one of the reaction products is insoluble in the suspension medium, b) passing the reaction suspension through an elongated reaction zone so that the Reynolds number of the stream is less than 20,000 and c) separating off the insoluble reaction product formed. The process has the advantage that the insoluble reaction product is obtained in a readily filterable form.

公开(公告)号：DK1423187T3

公开(公告)日：2005-06-27

申请号：DK02767452

申请日：2002-08-29

Applicant: BASF AG

Inventor： KLOPP INGO ,  MUNZINGER MANFRED ,  BOGENSTAETTER THOMAS ,  FRANKE DIRK

IPC: B01J8/08 ,  B01J8/00 ,  B01J8/06 ,  B01J8/20 ,  B01J19/00 ,  B01J19/24 ,  C07F9/141 ,  C07F9/38 ,  C07F9/40

Abstract: A process for carrying out a liquid/solid reaction comprises a) preparing a reaction suspension in which a first reactant is present in suspended form and a second reactant is present in dissolved form in a suspension medium, where one of the reaction products is insoluble in the suspension medium, b) passing the reaction suspension through an elongated reaction zone so that the Reynolds number of the stream is less than 20,000 and c) separating off the insoluble reaction product formed. The process has the advantage that the insoluble reaction product is obtained in a readily filterable form.

公开(公告)号：PL368982A1

公开(公告)日：2005-04-04

申请号：PL36898202

申请日：2002-08-29

Applicant: BASF AG

Inventor： KLOPP INGO ,  BOGENSTAETTER THOMAS ,  FRANKE DIRK ,  MUNZINGER MANFRED

IPC: B01J8/00 ,  B01J8/08 ,  B01J8/06 ,  B01J8/20 ,  B01J19/00 ,  B01J19/24 ,  C07F9/141 ,  C07F9/38 ,  C07F9/40

Abstract: A process for carrying out a liquid/solid reaction comprises a) preparing a reaction suspension in which a first reactant is present in suspended form and a second reactant is present in dissolved form in a suspension medium, where one of the reaction products is insoluble in the suspension medium, b) passing the reaction suspension through an elongated reaction zone so that the Reynolds number of the stream is less than 20,000 and c) separating off the insoluble reaction product formed. The process has the advantage that the insoluble reaction product is obtained in a readily filterable form.

公开(公告)号：DE10317051A1

公开(公告)日：2004-10-21

申请号：DE10317051

申请日：2003-04-11

Applicant: BASF AG

Inventor： FRANKE DIRK ,  HILL FRIEDRICH ,  MARTIN CHRISTOPH ,  KNEBEL THOMAS

IPC: A23L33/15 ,  C07D475/14 ,  A23L1/302 ,  A61K31/525

Abstract: The present invention relates to an improved process for preparing riboflavin of the B/C modification in granule form. Furthermore, the invention relates to the riboflavin preparation process wherein riboflavin of the A modification is (a) dissolved in aqueous mineral acid without treating the resulting riboflavin solution with activated carbon, (b) precipitated directly afterwards, steps (a) and (b) being carried out at a temperature in the range from 5 to 15° C., and (c) dried by fluidized bed granulation; and wherein the riboflavin does not come into contact with the aqueous mineral acid solvent for longer than on average 4 hours.

公开(公告)号：ES2215932T3

公开(公告)日：2004-10-16

申请号：ES01976093

申请日：2001-08-16

Applicant: BASF AG

Inventor： ISAK HEINZ ,  SENDHOFF NORBERT ,  SCHITZ FRANZ ,  THERRE JIRG ,  DRIGEMILLER MICHAEL ,  FRANKE DIRK

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：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：AT272666T

公开(公告)日：2004-08-15

申请号：AT01925342

申请日：2001-02-20

Applicant: BASF AG

Inventor： GROSCH GEORG HEINRICH ,  FRANKE DIRK ,  MUNZINGER MANFRED ,  HARRE KATHRIN ,  BAUM EVA ,  STOESSER MICHAEL

IPC: C01C3/08 ,  B01J27/26 ,  C08G65/02 ,  C08G65/26

Abstract: A process for preparing polyether polyols includes a precipitation step, a recrystallization step, and a reaction step. In the precipitation step, a multimetal cyanide compound is precipitated by reaction of a metal salt with a cyanometalate compound. In the recrystallization step, the multimetal cyanide compound precipitated above is recrystallized by adding further metal salt and/or further cyanometalate compound. The recrystallization forms a multimetal cyanide catalyst compound. In the reaction step, an initiator and one or more alkylene oxide are reacted in the presence of the multimetal cyanide catalyst compound.

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.