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公开(公告)号：JPS62178565A
公开(公告)日：1987-08-05
申请号：JP1015987
申请日：1987-01-21
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：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：MXPA02011118A
公开(公告)日：2003-03-10
申请号：MXPA02011118
申请日：2001-05-21
Applicant: BASF AG
Inventor： SCHNEIDER HEINZ-WALTER
Abstract: La invencion se refiere a un dispositivo y a un metodo para cristalizar sustancias a partir de soluciones o dispersiones que contienen estas sustancias en un cristalizador que contiene una zona de clasificacion (3) y que ademas esta provisto con: a) un sistema de circuito interno y uno externo (1, 2), el sistema del circuito interno (1) esta ubicado en el cristalizador, la entrada del sistema del circuito externo (2) esta conectada con el sistema de circuito interno (2) por una zona de clasificacion (3), el sistema de circuito externo (2) esta ubicado fuera del cristalizador, la salida del sistema del circuito externo (2) esta conectada con el sistema de circuito interno (1) del cristalizador, y un dispositivo para disolver cristales esta ubicado en el sistema del circuito externo (2) corriente arriba de la salida; b) una linea de alimentacion (4) para la solucion y/o dispersion, que esta ubicada en el cristalizador o en el sistema del circuito externo; y c) una salida (5) para las dispersiones, que esta ubicada en el cristalizador o en el sistema del circuito externo. El dispositivo inventivo se caracteriza especialmente porque ademas se proporciona con una linea (8) para regresar/guiar la dispersion, que interconecta el sistema del circuito externo y el interno (1, 2) y/o con una linea (8) para regresar/guiar la dispersion cuya entrada y salida estan conectadas con el sistema del circuito interno (1).
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公开(公告)号：CA2231536A1
公开(公告)日：1997-04-10
申请号：CA2231536
申请日：1996-09-26
Applicant: BASF AG
Inventor： HEINEKE DANIEL , SCHNEIDER HEINZ-WALTER , RIEKER CHRISTOPHER WILLIAM , OOSTVOGELS JOZEF , POSTELMANS DANY , THOME ALFRED , ACHHAMMER GUENTHER
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.
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公开(公告)号：DE3775080D1
公开(公告)日：1992-01-23
申请号：DE3775080
申请日：1987-01-23
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
Abstract: (i) 5-formyl-valeric acid ester is reacted with excess NH3 and H2, using alkanols as solvents, in the presence of hydrogenation catalysts, at 40-130 deg.C. (ii) NH3 and H2 are removed from the reaction mixt. obtd. (iii) The reaction mixt. is heated to 150-250 deg.C and caprolactam is recovered. (A) Catalysts are used which are prepd. by calcining cpds. having formula (I): ((MgaNi(II)bCo(II)c)Al2)CO3(OH)16 x 4 H2O (I) a = integer or decimal no. 0-4; b,c = integers or decimal nos. 0-6; provided that 2 x (a + b + c) = 2. at 200-600 deg.C and subsequent redn. with H2 at higher temp. (B) Ni catalysts can also be used contg. 30-60 wt.% finely-divided Ni pptd. on Mg silicate. (C) Raney-Ni or Raney-Co catalysts can be used in a suspension process. (D) The Raney-Ni or Raney-Co catalyst can be fixed magnetically or electro-magnetically in the reaction-zone.
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Patent Agency Ranking
公开(公告)号：CA1157880A
公开(公告)日：1983-11-29
申请号：CA364442
申请日：1980-11-12
Applicant: BASF AG
Inventor： KUMMER RUDOLF , TAGLIEBER VOLKER , WEISS FRANZ-JOSEF , SCHNEIDER HEINZ-WALTER
Abstract: O.Z. 0050/034,176 A process for purifying carboxylic acid esters which have been obtained by reacting olefinically unsaturated compounds with carbon monoxide and alkanols,and which contain aldehydes or acetals, wherein the said esters are treated with a strongly acidic agent,with or without addition of water.
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公开(公告)号：CA1115290A
公开(公告)日：1981-12-29
申请号：CA310829
申请日：1978-09-07
Applicant: BASF AG
Inventor： KUMMER RUDOLF , SCHNEIDER HEINZ-WALTER , WEISS FRANZ-JOSEF
Abstract: of the disclosure: A process for the manufacture of butanedicarboxylic acid esters, whereina) an aqueous cobalt salt solution is treated with carbon monoxide and hydrogen in the presence of active charcoal,b) the resulting aqueous solution is extracted with butadiene or with a hydrocarbon mixture containing butadiene,c) the butadiene, or butadiene/hydrocarbon mixture, containing cobalt carbonyl hydride, cobalt carbonyl and butenyl-cobalt tricarbonyl, is reacted with carbon monoxide and an excess of an alkanol of 1 to 4 carbon atoms in the presence of a tertiary nitrogen base,d) the tertiary nitrogen bases contained in the resulting reaction mixture are removed from the latter to the extent of leaving from 0.1 to 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 an alkanol of 1 to 4 carbon atoms, and thereafter excess alkanol and free nitrogen base are distilled off ande) the residual reaction mixture, containing cobalt catalysts, butanedicarboxylic acids and by-products is treated with an oxidizing agent in an aqueous acid medium and the mixture is separated into an organic phase, from which butanedicarboxylic acid esters are isolated by distillation, and an aqueous phase containing cobalt salts, which phase is extracted with a water-immiscible solvent.
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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：DE19808939A1
公开(公告)日：1999-09-09
申请号：DE19808939
申请日：1998-03-03
Applicant: BASF AG
Inventor： HEINEKE DANIEL , SCHNEIDER HEINZ-WALTER , THOME ALFRED , ACHHAMMER GUENTHER , MUELLER 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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