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    Production of ammonium salts of aromatic carboxylic acids
    31.
    发明专利
    Production of ammonium salts of aromatic carboxylic acids 未知

    公开(公告)号：NZ533023A

    公开(公告)日：2005-09-30

    申请号：NZ53302302

    申请日：2002-12-03

    Applicant: BASF AG

    Inventor： KLOPP INGO ,  BOGENSTATTER THOMAS ,  FRANKE DIRK

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

    Abstract: A process 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.

    32.
    发明专利
    未知

    公开(公告)号：PT1423187E

    公开(公告)日：2005-07-29

    申请号：PT02767452

    申请日：2002-08-29

    Applicant: BASF AG

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

    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.

    Production of ammonium salts of aromatic carboxylic acids.
    33.
    发明专利
    Production of ammonium salts of aromatic carboxylic acids. 未知

    公开(公告)号：ZA200405284B

    公开(公告)日：2005-07-04

    申请号：ZA200405284

    申请日：2004-07-02

    Applicant: BASF AG

    Inventor： KLOPP INGO ,  BOGENSTAETTER THOMAS ,  FRANKE DIRK

    IPC: C07C51/41 ,  C07C20060101 ,  C07C63/00 ,  C07C63/04 ,  C07C63/08 ,  C07C

    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.

    SOLID-LIQUID REACTION
    34.
    发明专利
    SOLID-LIQUID REACTION 未知

    公开(公告)号：HU0401278A2

    公开(公告)日：2004-12-28

    申请号：HU0401278

    申请日：2002-08-29

    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.

    35.
    发明专利
    未知

    公开(公告)号：DE10159420A1

    公开(公告)日：2003-06-12

    申请号：DE10159420

    申请日：2001-12-04

    Applicant: BASF AG

    Inventor： KLOPP INGO ,  BOGENSTAETTER THOMAS ,  FRANKE DIRK

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

    Abstract: A method for the production of ammonium salts of aromatic carboxylic acids by reaction of an aromatic carboxylic acid with ammonia in an aprotic solvent is disclosed. Said reaction is carried out in a closed vessel and a solution of the aromatic carboxylic acid in an aprotic solvent and gaseous ammonia are continuously introduced into the vessel, such that a partial pressure of ammonia of 0.1 to 3 bars is maintained in the gas chamber of the vessel and a suspension of the ammonium salt separates out in the aprotic solvent. The method permits the production of ammonium salts with defined crystal size and a narrow size distribution.

    SOLID-LIQUID REACTION
    36.
    发明专利
    SOLID-LIQUID REACTION 未知

    公开(公告)号：CA2458812A1

    公开(公告)日：2003-03-13

    申请号：CA2458812

    申请日：2002-08-29

    Applicant: BASF AG

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

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

    Abstract: The invention relates to a method for carrying out a solid-liquid reaction, according to which a) a reaction suspension is prepared, containing a first reactant which is suspended in a suspension medium and a second reactant whi ch is dissolved in the same, one of the reaction products being insoluble in th e suspension medium, b) the reaction suspension is guided through a longish reaction zone, the Reynolds number of the flow being less than 20,000, and c ) the insoluble reaction product formed is separated. The method is advantageo us in that the insoluble reaction product is obtained in a form which is easy t o filter.

    Solid-liquid reaction
    38.
    发明专利
    Solid-liquid reaction 未知

    公开(公告)号：AU2002331091B2

    公开(公告)日：2007-11-29

    申请号：AU2002331091

    申请日：2002-08-29

    Applicant: BASF AG

    Inventor： BOGENSTATTER THOMAS ,  FRANKE DIRK ,  KLOPP INGO ,  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.

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