公开(公告)号：SK16782002A3

公开(公告)日：2003-05-02

申请号：SK16782002

申请日：2001-05-21

Applicant: BASF AG

Inventor： ALLEN PETER MARK ,  GAHN CHRISTOPH ,  RIEKER CHRISTOPHER WILLIAM ,  SCHNEIDER HEINZ-WALTER ,  WAGNER ROBERT

IPC: B01D9/00 ,  B01D9/02

Abstract: An apparatus and a process for crystallizing substances from solutions or dispersions containing these substances, in a crystallizer containing a classifying zone ( 3 ), comprise a) an inner and an outer circulation system ( 1; 2 ), the inner circulation system ( 1 ) being present in the crystallizer, the inlet of the outer circulation system ( 2 ) being connected to the inner circulation system ( 1 ) via the classifying zone ( 3 ), the outer circulation system, being present outside the crystallizer, the outlet of the outer circulation system ( 2 ) being connected to the inner circulation system ( 1 ) of the crystallizer, and a means for dissolving crystals being arranged in the outer circulation system ( 2 ), before its outlet, b) an inflow ( 4 ) for solution and/or dispersion, which inflow is present on the crystallizer or on the outer circulation system, and c) an outflow ( 5 ) for dispersions, which outflow is arranged on the crystallizer or on the outer circulation system. The novel apparatus has the special feature that a line ( 8 ) connecting the outer and inner circulation systems ( 1; 2 ) to one another and intended for transporting (recycling) dispersion and/or a line ( 8 ) for transporting (recycling) dispersion are additionally present, in which both its entrance and its exit are connected to the inner circulation system ( 1 ).

公开(公告)号：UA75075C2

公开(公告)日：2006-03-15

申请号：UA20021210645

申请日：2001-05-21

Applicant: BASF AG

Inventor： ELLEN PETER MARK ,  RIEKER CHRISTOPHER WILLIAM

IPC: B01D9/00 ,  B01D9/02

Abstract: An apparatus and a process for crystallizing substances from solutions or dispersions containing these substances, in a crystallizer containing a classifying zone (3), comprise a) an inner and an outer circulation system (1; 2), the inner circulationsystem (1) being present in the crystallizer, the inlet of the outer circulation system (2) being connected to the inner circulation system (1) via the classifying zone (3), the outer circulation system, being present outside the crystallizer, the outlet of the outer circulation system (2) being connected to the inner circulation system (1) of the crystallizer, and a means for dissolving crystals being arranged in the outer circulation system (2), before its outlet, b) an inflow (4) for solution and/or dispersion, which inflow is present on the crystallizer or on the outer circulation system, and c) an outflow (5) for dispersions, which outflow is arranged on the crystallizer or on the outercirculation system. The novel apparatus has the special feature that a line (8) connecting the outer and inner circulation systems (1; 2) to one another and intended for transporting (recycling) dispersion and/or a line (8) for transporting (recycling) dispersion are additionally present, in which both its entrance and its exit are connected to the inner circulation system (1).

公开(公告)号：ES2240468T3

公开(公告)日：2005-10-16

申请号：ES01943419

申请日：2001-05-21

Applicant: BASF AG

Inventor： ALLEN PETER MARK ,  GAHN CHRISTOPH ,  RIEKER CHRISTOPHER WILLIAM ,  SCHNEIDER HEINZ-WALTER ,  WAGNER ROBERT

IPC: B01D9/00 ,  B01D9/02

Abstract: Procedimiento para la cristalización de sustancias a partir de soluciones o dispersiones que contienen estas sustancias, en un dispositivo que presenta un sistema de circulación interior y exterior, de manera que: i) el sistema de circulación interior se encuentra en un cristalizador que contiene una zona de clasificación y éste presenta una dispersión que presenta cristales de las sustancias y se mueve a través del sistema de circulación interior, ii) una corriente parcial de la dispersión es transportada desde el cristalizador, a través de la zona de clasificación, al sistema de circulación exterior iii) los cristales contenidos en esta dispersión se disuelven en el sistema de circulación exterior mediante un intercambiador de calor, iv) la dispersión o la solución originada mediante la disolución completa de los cristales procedentes de la dispersión se hace recircular de manera subsiguiente en el sistema de circulación interior del cristalizador, v) una solución y/o dispersión que contiene las sustancias se alimenta al cristalizador y/o al sistema de circulación exterior y vi) una dispersión que presenta cristales de las sustancias se extrae del sistema de circulación exterior y/o del cristalizador, vii) caracterizado porque una corriente parcial de la dispersión que presenta los cristales se extrae del sistema de circulación interior y esta corriente parcial se alimenta al sistema de circulación exterior mediante un conducto para la realimentación de la dispersión, de modo que el conducto desemboca en el sistema de circulación exterior antes del intercambiador de calor de tal manera que la capacidad de disolución del intercambiador de calor se sobrecarga por la alimentación de esta corriente parcial por lo que los cristales de la dispersión no se disuelven de forma fundamental.

公开(公告)号：CO5221127A1

公开(公告)日：2002-11-28

申请号：CO01042218

申请日：2001-05-25

Applicant: BASF AG

Inventor： ALLEN PETER MARK ,  GAHN CHRISTOPH ,  RIEKER CHRISTOPHER WILLIAM ,  SCHNEIDER HEINZ-WALTER ,  WAGNER ROBERT

IPC: B01D9/02 ,  B01D9/00 ,  B01L3/06

Abstract: Un aparato para cristalizar sustancias a partir de soluciones o dispersiones que contienen estas sustancias, en un cristalizador que contiene una zona de clasificación (3), comprende:a) Un sistema de circulación interno y un externo (1; 2), el sistema de circulación interno (1) esta presente en el cristalizador, la entrada del sistema de circulación externo (2) esta conectada a sistema de circulación interno (1) por medio de la zona de clasificación (3), el sistema de circulación externo (2) está presente por fuera del cristalizador, en la salida del sistema de circulación externo (2) está conectado al sistema de circulación interno (1) del cristalizador, y un medio para disolver cristales está dispuesto en el sistema de circulación externo (2), antes de su salida,b) un flujo hacia adentro (4) para la solución y/o dispersión, dicho flujo hacia adentro está en el cristalizador o sobre el sistema de circulación externa (2), c) un flujo hacia fuera (5) para las dispersiones, dicho flujo hacia fuera está dispuesto en el cristalizador o sobre el sistema de circulación externo (2),En donde una línea (8) que conecta los sistemas de circulación externo e interno (1; 2) uno con el otro y que tiene el propósito de transportar (reciclar) la dispersión y/o una línea (8) para transportar (reciclar) la dispersión esta adicionalmente presente, en la cual tanto su entrada como su salida están conectadas al sistema de circulación interno (1).

公开(公告)号：DE10026619A1

公开(公告)日：2001-12-06

申请号：DE10026619

申请日：2000-05-29

Applicant: BASF AG

Inventor： ALLEN PETER MARK ,  GAHN CHRISTOPH ,  RIEKER CHRISTOPHER WILLIAM ,  SCHNEIDER HEINZ-WALTER ,  WAGNER ROBERT

IPC: B01D9/00 ,  B01D9/02 ,  C01C1/248 ,  C07C51/43 ,  C07C55/14

Abstract: The invention relates to a device and to a method for crystallizing substances from solutions or dispersions containing said substances in a crystallizer that comprises a classifying zone (3) and that is further provided with a) an inner and an outer circuit system (1; 2), the inner circuit system (1) being disposed in the crystallizer, the inlet of the outer circuit system (2) being linked with the inner circuit system (2) via a classifying zone (3), the outer circuit system (2) being disposed outside the crystallizer, the outlet of the outer circuit system (2) being linked with the inner circuit system (1) of the crystallizer, and a device for dissolving crystals being disposed in the outer circuit system (2) upstream of the outlet; b) a feed line (4) for the solution and/or dispersion, which is disposed on the crystallizer or on the outer circuit system; and c) an outlet (5) for dispersions that is disposed on the crystallizer or on the outer circuit system. The inventive device is especially characterized in that it is additionally provided with a line (8) for returning/guiding the dispersion that interlinks the outer and the inner circuit system (1; 2) and/or with a line (8) for returning/guiding the dispersion whose inlet and outlet are linked with the inner circuit system (1).

公开(公告)号：CA2410154A1

公开(公告)日：2001-12-06

申请号：CA2410154

申请日：2001-05-21

Applicant: BASF AG

Inventor： GAHN CHRISTOPH ,  RIEKER CHRISTOPHER WILLIAM ,  ALLEN PETER MARK ,  SCHNEIDER HEINZ-WALTER ,  WAGNER ROBERT

IPC: B01D9/02 ,  B01D9/00

Abstract: An apparatus and a process for crystallizing substances from solutions or dispersions containing these substances, in a crystallizer containing a classifying zone ( 3 ), comprise a) an inner and an outer circulation system ( 1; 2 ), the inner circulation system ( 1 ) being present in the crystallizer, the inlet of the outer circulation system ( 2 ) being connected to the inner circulation system ( 1 ) via the classifying zone ( 3 ), the outer circulation system, being present outside the crystallizer, the outlet of the outer circulation system ( 2 ) being connected to the inner circulation system ( 1 ) of the crystallizer, and a means for dissolving crystals being arranged in the outer circulation system ( 2 ), before its outlet, b) an inflow ( 4 ) for solution and/or dispersion, which inflow is present on the crystallizer or on the outer circulation system, and c) an outflow ( 5 ) for dispersions, which outflow is arranged on the crystallizer or on the outer circulation system. The novel apparatus has the special feature that a line ( 8 ) connecting the outer and inner circulation systems ( 1; 2 ) to one another and intended for transporting (recycling) dispersion and/or a line ( 8 ) for transporting (recycling) dispersion are additionally present, in which both its entrance and its exit are connected to the inner circulation system ( 1 ).

公开(公告)号：DE19536777C1

公开(公告)日：1997-05-15

申请号：DE19536777

申请日：1995-10-04

Applicant: BASF AG

Inventor： HEINEKE DANIEL DR ,  RIEKER CHRISTOPHER WILLIAM ,  OOSTVOGELS JOZEF ,  POSTELMANS DANY DR ,  SCHNEIDER HEINZ-WALTER DR ,  THOME ALFRED DR ,  ACHHAMMER GUENTHER DR

IPC: B01J23/42 ,  B01J23/96 ,  B01J37/16 ,  B01J38/48 ,  C01B21/14

Abstract: The invention relates to a hydrogenation catalyst by the reduction from platinum in the stage of oxidation of +4 (Pt (IV)) with a selective reducing agent in an acidic aqueous medium in the presence of a carbon-containing carrier to platinum in the stage of oxidation +2 (Pt (II)), subsequent poisoning of the platinum thus obtained with a sulphur-containing selective reducing agent, and subsequent reduction of the platinum thus partially poisoned to form metallic platinum (Pt(0)) and subsequent processing as known per se in that (a) Pt (II) is partially poisoned with a sulphur-containing selective reducing agent, wherein the sulphur-containing selective reduction agent is used in an amount which corresponds to from 15 to 70 mol % of the amount of the sulphur-containing selective reducing agent which might be needed to reduce Pt(IV) to Pt (II), provided that the amount of Pt (IV) corresponds to the amount of Pt (II) used and to be poisoned, and subsequently the partially poisoned Pt (II) is reduced with an alkali metal formate to Pt (0); or (b) platinum in the stage of oxidation of greater than +2 is partially poisoned and subsequently or simultaneously reduced with an alkali metal formate to Pt (0). The invention also relates to a hydrogenation catalyst, use of the hydrogenation catalyst for preparing hydroxylammonium salts, a process for the preparation of hydroxylammonium salts, and a process for regenerating platinum-containing hydrogenation catalysts.

公开(公告)号：ES2259710T3

公开(公告)日：2006-10-16

申请号：ES02742982

申请日：2002-05-10

Applicant: BASF AG

Inventor： BEVER PAUL-MICHAEL ,  LAMM GUNTHER ,  VON BERNSTORFF BERND-STEFFEN ,  RIEKER CHRISTOPHER WILLIAM

IPC: C08J7/06 ,  C08G69/02 ,  C08G69/04 ,  C08G69/48 ,  C08K5/3432 ,  C08L77/00 ,  D01F6/90 ,  C08K5/3435

Abstract: Sistema constituido por a) una poliamida, que contiene un derivado de piperidina con impedimento estérico unido mediante enlace químico a la cadena de polímero, y b) un derivado de 2, 6-diaminopiridina,

公开(公告)号：PL367232A1

公开(公告)日：2005-02-21

申请号：PL36723202

申请日：2002-05-10

Applicant: BASF AG

Inventor： BEVER PAUL-MICHAEL ,  LAMM GUNTHER ,  VON BERNSTORFF BERND-STEFFEN ,  RIEKER CHRISTOPHER WILLIAM

IPC: C08J7/06 ,  C08G69/02 ,  C08G69/04 ,  C08G69/48 ,  C08K5/3432 ,  C08L77/00 ,  D01F6/90

Abstract: A system comprising a) a polyamide containing a sterically hindered piperidine derivative attached to the polymer chain by chemical bonding, and b) a 2,6-diaminopyridine derivative.

公开(公告)号：CA2445453A1

公开(公告)日：2002-11-21

申请号：CA2445453

申请日：2002-05-10

Applicant: BASF AG

Inventor： LAMM GUNTHER ,  BEVER PAUL-MICHAEL ,  RIEKER CHRISTOPHER WILLIAM ,  VON BERNSTORFF BERND-STEFFEN

IPC: C08J7/06 ,  C08G69/02 ,  C08G69/04 ,  C08G69/48 ,  C08K5/3432 ,  C08L77/00 ,  D01F6/90 ,  C08K5/3435

Abstract: The invention relates to a system made from a) a polyamide, comprising a sterically-hindered, chemically bonded piperidine derivative in the polymer chain and b) a 2,6-diaminopyridine derivative.