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公开(公告)号：BR0111229A
公开(公告)日：2003-03-18
申请号：BR0111229
申请日：2001-05-21
Applicant: BASF AG
Inventor： ALLEN PETER MARK , GAHN CHRISTOPH , RIEKER CHRISTOPHER WILLIAM , SCHNEIDER HEINZ-WALTER , WAGNER ROBERT
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 ).
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公开(公告)号：AT293485T
公开(公告)日：2005-05-15
申请号：AT01943419
申请日：2001-05-21
Applicant: BASF AG
Inventor： ALLEN PETER MARK , GAHN CHRISTOPH , RIEKER CHRISTOPHER WILLIAM , SCHNEIDER HEINZ-WALTER , WAGNER ROBERT
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 ).
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公开(公告)号：BG107233A
公开(公告)日：2003-07-31
申请号：BG10723302
申请日：2002-10-29
Applicant: BASF AG
Inventor： ALLEN PETER M , GAHN CHRISTOPH , RIEKER CHRISTOPHER W , SCHNEIDER HEINZ-WALTER , WAGNER ROBERT
Abstract: The invention relates to a device and to a method for crystallizing substances from solutions of dispersions containing said substances in a crystallizer that comprises a classifying zone (3) and that is further provided with a) an inner (1) and an outer (2) circuit systems, 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 (1) 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 crystallizers, 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 on the crystallizer or on the outer circuit system; and c) the 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). 7 claims, 5 figures
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公开(公告)号：PL197879B1
公开(公告)日：2008-05-30
申请号：PL35898701
申请日：2001-05-21
Applicant: BASF AG
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公开(公告)号：AU6600101A
公开(公告)日：2001-12-11
申请号：AU6600101
申请日：2001-05-21
Applicant: BASF AG
Inventor： ALLEN PETER MARK , GAHN CHRISTOPH , RIEKER CHRISTOPHER WILLIAM , SCHNEIDER HEINZ-WALTER , WAGNER ROBERT
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 ).
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Patent Agency Ranking
公开(公告)号：CZ303032B6
公开(公告)日：2012-03-07
申请号：CZ20023819
申请日：2001-05-21
Applicant: BASF AG
Inventor： ALLEN PETER MARK , GAHN CHRISTOPH , RIEKER CHRISTOPHER WILLIAM , SCHNEIDER HAINZ-WALTER , WAGNER ROBERT
Abstract: U zpusobu se vnitrnímu cirkulacnímu systému (1) odebírá dílcí proud disperze, obsahující krystaly, a tento dílcí proud se pres vedení (8) k recirkulaci disperze privádí vnejšímu cirkulacnímu systému (2), pricemž vedení (8) pred výmeníkem (6) tepla ústí do vnejšího cirkulacního systému (2), takže se rozpouštecí kapacita výmeníku (6) tepla privádením tohoto dílcího proudu pretežuje, címž se krystaly disperze nerozpouští v podstatné míre.
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公开(公告)号：PL358987A1
公开(公告)日：2004-08-23
申请号：PL35898701
申请日：2001-05-21
Applicant: BASF AG
Inventor： ALLEN PETER MARK , GAHN CHRISTOPH , RIEKER CHRISTOPHER WILIAM , SCHNEIDER HEINZ-WALTER , WAGNER ROBERT
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 ).
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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
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 ).
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公开(公告)号：DE19946671A1
公开(公告)日：2001-04-05
申请号：DE19946671
申请日：1999-09-29
Applicant: BASF AG
Inventor： SETZER UDO , OTTO BERNHARD , BECHTEL SIEGFRIED , GELDER RICHARD VAN , FETZER THOMAS , BORGWART JOACHIM , RAULS MATTHIAS , GAHN CHRISTOPH
Abstract: A method for preventing crusting in reactors or crystallisers for solutions and suspensions involves exposure to ultrasound vibrations which are fed in from sonotrodes at about the level of the liquid or suspension in the vessel. A method for preventing the formation of a crust in reactors or crystallisers (e.g. production crystallisers) (13) for solutions and suspensions (11) by exposure to ultrasound vibrations from a high-frequency generator (1), which are fed into the system at input points (4) on the walls (6, 21) or base (7) of the container (13) via sonotrodes (3) connected to electromechanical transformers (2). The method involves feeding in the vibrations in a zone (16) around the level (17) of the liquid or suspension in the container. An Independent claim is also included for an arrangement for preventing crusting as above, in which sonotrodes are fitted in a ring around the crystallizer in a zone (16) between the level (17) of the suspension in the vessel (13) and the zone affected by a cooling medium (9).
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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
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.
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