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    METHOD FOR PURIFYING CREATINE
    1.
    发明专利
    METHOD FOR PURIFYING CREATINE 失效

    公开(公告)号：JP2001181254A

    公开(公告)日：2001-07-03

    申请号：JP2000387369

    申请日：2000-12-20

    Applicant: BASF AG

    Inventor： KESSEL KNUT ,  SCHERR GUENTER DR ,  BOGENSTAETTER THOMAS DR ,  ORSTEN STEFAN ,  FRANKE DIRK

    IPC: C07C277/06 ,  C07C277/08 ,  C07C279/14

    Abstract: PROBLEM TO BE SOLVED: To provide a method for providing creatine having purity as high as possible in a simple way. SOLUTION: A method for purifying creatine is to introduce creatine to be purified and not containing water of crystallization into a saturated aqueous solution of creatine monohydrate in such a way that the creatine not containing water of crystallization is dissolved under a hydrated condition, to precipitate the crystal of creatine monohydrate from the aqueous solution and to separate the above crystal from the aqueous solution.

    Production of ammonium salts of aromatic carboxylic acids
    4.
    发明专利
    Production of ammonium salts of aromatic carboxylic acids 未知

    公开(公告)号：AU2002356773B2

    公开(公告)日：2008-09-04

    申请号：AU2002356773

    申请日：2002-12-03

    Applicant: BASF AG

    Inventor： KLOPP INGO ,  FRANKE DIRK ,  BOGENSTATTER THOMAS

    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.

    5.
    发明专利
    未知

    公开(公告)号：AT372977T

    公开(公告)日：2007-09-15

    申请号：AT02804219

    申请日：2002-12-03

    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.

    SOLID-LIQUID REACTION.
    6.
    发明专利
    SOLID-LIQUID REACTION. 未知

    公开(公告)号：MX238841B

    公开(公告)日：2006-07-24

    申请号：MXPA04001485

    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.

    PRODUCCION DE SALES DE AMONIO DE ACIDOS CARBOXILICOS AROMATICOS.
    8.
    发明专利
    PRODUCCION DE SALES DE AMONIO DE ACIDOS CARBOXILICOS AROMATICOS. 未知

    公开(公告)号：MXPA04004852A

    公开(公告)日：2004-07-30

    申请号：MXPA04004852

    申请日：2002-12-03

    Applicant: BASF AG

    Inventor： KLOPP INGO ,  BOGENSTAETTER THOMAS ,  FRANKE DIRK

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

    Abstract: Se describe un metodo para la produccion de sales de amonio de acidos carboxilicos aromaticos mediante la reaccion de un acido carboxilico aromatico con amoniaco en un solvente aprotico. Dicha reaccion se lleva a cabo en un recipiente cerrado y una solucion del acido carboxilico aromatico en un solvente aprotico y amoniaco gaseoso es introducida de manera continua dentro del recipiente, de manera que se mantiene una presion parcial de amoniaco de 0.1 hasta 3 bars en la camara de gas del recipiente y una suspension de la sal de amonio se separa en el solvente aprotico. El metodo permite la produccion de sales de amonio con tamano de cristal definido y una distribucion de tamano estrecha.

    METHOD FOR PRODUCING ETHERS, ESTERS OR ACID ANHYDRIDES
    10.
    发明专利
    METHOD FOR PRODUCING ETHERS, ESTERS OR ACID ANHYDRIDES 未知

    公开(公告)号：CA2481222A1

    公开(公告)日：2003-10-23

    申请号：CA2481222

    申请日：2003-04-14

    Applicant: BASF AG

    Inventor： FRANKE DIRK ,  BOGENSTAETTER THOMAS ,  KLOPP INGO

    IPC: C07F9/06 ,  C07C51/02 ,  C07C51/41 ,  C07F9/141 ,  C07C45/79 ,  B01J8/20

    Abstract: Ethers, esters or acid anhydrides are advantageously obtained when a cake situated on a filtering element and consisting of a first reactant, which is selected among salts of organic or oxygen-containing inorganic acids or alcoholates, is flown though by a solution consisting of a second reactant, which is selected among inorganic or organic acid halides and alkyl halides, whereby the formed insoluble halide salt remains on the filtering element. This enables the halide salt to be easily separated in an essentially quantitative manner.

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