PRODUCTION OF AMMONIUM SALTS OF AROMATIC CARBOXYLIC ACIDS

    公开(公告)号:CA2468042A1

    公开(公告)日:2003-06-12

    申请号:CA2468042

    申请日:2002-12-03

    Applicant: BASF AG

    Abstract: A method for the production of ammonium salts of aromatic carboxylic acids b y reaction of an aromatic carboxylic acid with ammonia in an aprotic solvent i s 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 an d a narrow size distribution.

    Production of ammonium salts of aromatic carboxylic acids

    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

    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.

    53.
    发明专利
    未知

    公开(公告)号:DE50309110D1

    公开(公告)日:2008-03-20

    申请号:DE50309110

    申请日:2003-11-28

    Applicant: BASF AG

    Abstract: Solid pigment preparations containing the following ingredients as substantial components: (A) 60-85 wt. % of at least one organic pigment, (B) 0.1-15 wt. % of at least one pigment derivative of general formula I wherein the variables have the following meanings: P is the radical of the parent substance of an organic pigment; T 1 , T 2 independently represent a chemical bond, -CONR 1 - or -SO 2 NR 1 -; B 1 , B 2 independently represent a chemical bond, C1-C8-alkylene or phenylene;X, Y independently represent similar or different groups -SO 3 - Ka + or -COO- Ka + ; m, n represent a rational number from 0 to 3, whereby 1=m+n=4; Ka + H + , Li + , Na + , K + , N + R 2 R 3 R 4 R 5 or a mixture of said cations; R 1 represents hydrogen; C 1 -C 4 -alkyl; phenyl or naphthyl which can be respectively substituted by C 1 -C 18 -alkyl; R 2 , R 3 , R 4 , R 5 independently represent hydrogen; C 1 -C 30 -alkyl; C 3 -C 30 -alkenyl; C 5 -C 6 -cycloalkyl which can be substituted by C 1 -C 24 -alkyl; phenyl or naphthyl which can be respectively substituted by C 1 -C 24 -alkyl or C 2 -C 24 -alkenyl; a radical of formula -[CHR 6 -CHR 7 -O]x-R 8 , wherein the repeating units -[CHR 6 -CHR 7 -O] for x> 1 can vary; R 6 , R 7 , R 8 independently represent hydrogen or C 1 -C 6 -alkyl; x is a whole number= 1 , and (C) 14.9 39.9 wt. % of at least one surface active additive from the group of non-ionic polyethers containing no primary amino groups, the acidic phosphoric acid esters,phosphonic acid esters, sulphuric acid esters and/or sulfonic acid esters thereof, the salts thereof and the condensation produces thereof with formaldehyde.

    54.
    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

    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.
    56.
    发明专利

    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

    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.

    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

    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.

    Solid pigment preparations containing pigment derivatives and surface-active additives

    公开(公告)号:AU2003298151A8

    公开(公告)日:2004-06-23

    申请号:AU2003298151

    申请日:2003-11-28

    Applicant: BASF AG

    Abstract: Solid pigment preparations containing the following ingredients as substantial components: (A) 60-85 wt. % of at least one organic pigment, (B) 0.1-15 wt. % of at least one pigment derivative of general formula I wherein the variables have the following meanings: P is the radical of the parent substance of an organic pigment; T 1 , T 2 independently represent a chemical bond, -CONR 1 - or -SO 2 NR 1 -; B 1 , B 2 independently represent a chemical bond, C1-C8-alkylene or phenylene;X, Y independently represent similar or different groups -SO 3 - Ka + or -COO- Ka + ; m, n represent a rational number from 0 to 3, whereby 1=m+n=4; Ka + H + , Li + , Na + , K + , N + R 2 R 3 R 4 R 5 or a mixture of said cations; R 1 represents hydrogen; C 1 -C 4 -alkyl; phenyl or naphthyl which can be respectively substituted by C 1 -C 18 -alkyl; R 2 , R 3 , R 4 , R 5 independently represent hydrogen; C 1 -C 30 -alkyl; C 3 -C 30 -alkenyl; C 5 -C 6 -cycloalkyl which can be substituted by C 1 -C 24 -alkyl; phenyl or naphthyl which can be respectively substituted by C 1 -C 24 -alkyl or C 2 -C 24 -alkenyl; a radical of formula -[CHR 6 -CHR 7 -O]x-R 8 , wherein the repeating units -[CHR 6 -CHR 7 -O] for x> 1 can vary; R 6 , R 7 , R 8 independently represent hydrogen or C 1 -C 6 -alkyl; x is a whole number= 1 , and (C) 14.9 39.9 wt. % of at least one surface active additive from the group of non-ionic polyethers containing no primary amino groups, the acidic phosphoric acid esters,phosphonic acid esters, sulphuric acid esters and/or sulfonic acid esters thereof, the salts thereof and the condensation produces thereof with formaldehyde.

    SOLID PIGMENT PREPARATIONS CONTAINING PIGMENT DERIVATIVES AND SURFACE-ACTIVE ADDITIVES

    公开(公告)号:AU2003298151A1

    公开(公告)日:2004-06-23

    申请号:AU2003298151

    申请日:2003-11-28

    Applicant: BASF AG

    Abstract: Solid pigment preparations containing the following ingredients as substantial components: (A) 60-85 wt. % of at least one organic pigment, (B) 0.1-15 wt. % of at least one pigment derivative of general formula I wherein the variables have the following meanings: P is the radical of the parent substance of an organic pigment; T 1 , T 2 independently represent a chemical bond, -CONR 1 - or -SO 2 NR 1 -; B 1 , B 2 independently represent a chemical bond, C1-C8-alkylene or phenylene;X, Y independently represent similar or different groups -SO 3 - Ka + or -COO- Ka + ; m, n represent a rational number from 0 to 3, whereby 1=m+n=4; Ka + H + , Li + , Na + , K + , N + R 2 R 3 R 4 R 5 or a mixture of said cations; R 1 represents hydrogen; C 1 -C 4 -alkyl; phenyl or naphthyl which can be respectively substituted by C 1 -C 18 -alkyl; R 2 , R 3 , R 4 , R 5 independently represent hydrogen; C 1 -C 30 -alkyl; C 3 -C 30 -alkenyl; C 5 -C 6 -cycloalkyl which can be substituted by C 1 -C 24 -alkyl; phenyl or naphthyl which can be respectively substituted by C 1 -C 24 -alkyl or C 2 -C 24 -alkenyl; a radical of formula -[CHR 6 -CHR 7 -O]x-R 8 , wherein the repeating units -[CHR 6 -CHR 7 -O] for x> 1 can vary; R 6 , R 7 , R 8 independently represent hydrogen or C 1 -C 6 -alkyl; x is a whole number= 1 , and (C) 14.9 39.9 wt. % of at least one surface active additive from the group of non-ionic polyethers containing no primary amino groups, the acidic phosphoric acid esters,phosphonic acid esters, sulphuric acid esters and/or sulfonic acid esters thereof, the salts thereof and the condensation produces thereof with formaldehyde.

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