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公开(公告)号：CA1093057A
公开(公告)日：1981-01-06
申请号：CA274599
申请日：1977-03-23
Applicant: BASF AG
Inventor： KUMMER RUDOLF , SCHNEIDER HEINZ-WALTER , SCHWIRTEN KURT
IPC: B01J31/40 , B01J38/68 , B01J38/74 , C07B61/00 , C07C45/00 , C07C45/50 , C07C47/02 , C07C67/00 , C07F15/00 , B01J23/96
Abstract: The isolation and regeneration of catalysts of type I or II ClRh(CO)(PR3)2 I Hrh(CO)(PR3)3 II, where the R's are identical or different hydrocarbon radicals, to give the catalysts in a pure form, is effected by regenerating aqueous rhodium salt solutions, as obtained on treating distillation residues of hydroformylation mixtures with oxygencontaining mineral acids and peroxides, by a method wherein the aqueous rhodium salt solutions are treated with a cation exchanger, the latter is then separated from the solution, the absorbed rhodium ions are desorbed with hydrochloric acid, the hexachlororhodate solutions, containing hydrochloric acid, are reacted, in the presence of a water-soluble organic solvent and a tertiary phosphine PR3, with carbon monoxide, or with compounds which eliminate carbon monoxide, at from 0 to 150.degree.C and from 1 to 5 bars, to form the chloro- complexes I which are either separated off or converted to the hydrido-complexes II using under hydrogenating conditions hydrogen or hydride ions, and the resulting complexes II are separated off.
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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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公开(公告)号：DE50105962D1
公开(公告)日：2005-05-25
申请号：DE50105962
申请日：2001-05-21
Applicant: BASF AG
Inventor： ALLEN MARK , GAHN CHRISTOPH , RIEKER 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：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
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).
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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
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).
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Patent Agency Ranking
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
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：SK12282000A3
公开(公告)日：2001-04-09
申请号：SK12282000
申请日：1999-03-02
Applicant: BASF AG
Inventor： HEINEKE DANIEL , SCHNEIDER HEINZ-WALTER , THOME ALFRED , ACHHAMMER GUNTHER , MULLER ULRICH , HOFSTADT OTTO
Abstract: The invention relates to a method for producing hydroxylammonium salts by means of catalytic reduction of nitrogen monoxide with hydrogen in the presence of an acid and a hydrogenating catalyst, whereby the nitrogen monoxide is purified before the catalytic reduction by at least one treatment with porous oxides based on silicon and/or aluminum or with activated carbon.
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公开(公告)号：PL307082A1
公开(公告)日：1995-08-07
申请号：PL30708295
申请日：1995-02-03
Applicant: BASF AG
Inventor： SCHNEIDER HEINZ-WALTER , WILMS AXEL , SCHMITZ RUEDIGER , SCHULZ ROBERT , MICHELSEN KLAUS
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公开(公告)号：DE3602376A1
公开(公告)日：1987-07-30
申请号：DE3602376
申请日：1986-01-28
Applicant: BASF AG
Inventor： HUTMACHER HANS-MARTIN , MERGER FRANZ , BROECKER FRANZ JOSEF , FISCHER ROLF , VAGT UWE , HARDER WOLFGANG , PRIESTER CLAUS-ULRICH , SCHNEIDER HEINZ-WALTER , RICHTER WOLFGANG
IPC: B01J23/74 , B01J23/78 , B01J25/00 , C07B61/00 , C07D201/08
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公开(公告)号：CA1126753A
公开(公告)日：1982-06-29
申请号：CA332104
申请日：1979-07-19
Applicant: BASF AG
Inventor： PLATZ ROLF , KUMMER RUDOLF , SCHNEIDER HEINZ-WALTER
IPC: B01J31/00 , C07B61/00 , C07C67/38 , C07C69/44 , C07C69/533
Abstract: O.Z. 0050/033363 In a process for the preparation of butanedicarboxylic acid esters, whereina) an aqueous cobalt salt solution is treated, at from 50 to 200.degree.C and under a pressure of from 50 to 500 bar, with excess carbon monoxide and hydrogen in the presence of active charcoal laden with cobalt carbonyl,b) the resulting aqueous solution of cobalt carbonyl hydride is extracted with butadiene, or with a hydrocarbon mixture containing butadiene, and the aqueous phase is separated off,c) the butadiene, or the butadiene/hydrocarbon mixture, containing cobalt carbonyl hydride, cobalt carbonyl and butenyl-cobalt tricarbonyl, is reacted with carbon monoxide and a C1-C4-alkanol in excess in the presence of from 0.5 to 2 moles, per mole of butadiene, of a tertiary nitrogen base having a pKa of from 3 to 11, at from 80 to 150.degree.C and under a pressure of from 300 to 2,000 bar,d) the tertiary nitrogen base contained in the resulting reaction mixture is removed until its content reaches 0.1-0.3 mole per mole of pentenoic acid ester, excess hydrocarbons are also removed, the pentenoic acid ester remaining in the reaction mixture is reacted with carbon monoxide and a C1-C4-alkanol in excess at from 140 to 200.degree.C and under a pressure of from 100 to 400 bar in the presence of the amounts of cobalt carbonyl and tertiary nitrogen base present in the reaction mixture, and excess alkanol and free nitrogen base are then distilled off, ande) the reaction mixture which is left and which con O.Z. 0050/033363 tains a cobalt catalyst, butanedicarboxylic acid ester and by-products is treated with oxidizing agents in the presence of the aqueous acid solution which has been removed in stage b), and the mixture is separated into an organic phase, from which butanedicarboxylic acid ester is isolated by distillation, and an aqueous phase, containing cobalt salts, which is recycled to stage a), the improvement that the aqueous phase separated off in stage b) is heated at from 250 to 350.degree.C under superatmospheric pressure, before being used in stage e).
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