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公开(公告)号：ES2235833T3
公开(公告)日：2005-07-16
申请号：ES00904982
申请日：2000-01-29
Applicant: BASF AG
Inventor： DITRICH KLAUS , BLOCK ULRICH
IPC: C07B61/00 , C07C51/48 , C07C59/125 , C07C67/08 , C07C67/54 , C07C69/708
Abstract: Procedimiento para la fabricación de ésteres de fórmula general I, **(Fórmula)** a partir de los compuestos contenidos en las disoluciones acuosas de fórmula general **(Fórmula)** caracterizado porque a) los compuestos de fórmula general II se extraen directamente o tras la liberación de sus sales en presencia de un alcohol C1-C8 y un disolvente no miscible con agua, en los que el alcohol se puede usar al mismo tiempo como disolvente y b) a continuación, se esterifican con el alcohol C1-C8 en presencia de un catalizador y un agente de arrastre cuyo punto de ebullición como azeótropo con el alcohol y el agua es al menos 8ºC menor que el azeótropo del alcohol y del agua, bajo las condiciones de una destilación azeotrópica, usándose al menos 1% en peso de agente de arrastre referido al volumen total de la reacción y en el que los pasos (a) y (b) del procedimiento pueden estar separados temporal y espacialmente o también se pueden realizar en una secuencia consecutiva continua o discontinua y en el que las variables y los sustituyentes en las fórmulas I y II tienen el significado siguiente: 35 R1 = F, Cl, -OH, -O-alquilo C1-C10 sustituido o no sustituido, ramificado o no ramificado, R2 = H, alquilo C1-C10 sustituido o no sustituido, ramificado o no ramificado, R3 = alquilo C1-C8 sustituido o no sustituido, ramificado o no ramificado, 40 Q = -OH, , -O-K+, en el que K+ es un ión alcalino o alcalinotérreo o una amina,
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公开(公告)号：ES2218265T3
公开(公告)日：2004-11-16
申请号：ES00985245
申请日：2000-12-22
Applicant: BASF AG
Inventor： BLOCK ULRICH , SEUBERT ROLF , ULRICH BERNHARD , WUNSCHMANN HELMUT
Abstract: A process and an apparatus for producing a homogeneous mixture of a gaseous aromatic hydrocarbon and an oxygen-containing gas for catalytic gas-phase reactions, in particular a homogeneous mixture of gaseous o-xylene and/or naphthalene and air for preparing phthalic anhydride, are provided. The liquid aromatic hydrocarbon is atomized to form droplets having a diameter of less than 1 mm and injected into an oxygen-containing gas stream (12) preheated to above the boiling point of the aromatic hydrocarbon. According to the invention, the liquid aromatic hydrocarbon is atomized by means of nozzles (15) which form a hollow cone (16), preferably by means of swirl nozzles. The o-xylene/air mixture is advantageously produced in a chamber which is bounded by side walls (18) heated to above the boiling point of the hydrocarbon.
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公开(公告)号：CA2361645C
公开(公告)日：2009-12-22
申请号：CA2361645
申请日：2000-01-29
Applicant: BASF AG
Inventor： DITRICH KLAUS , BLOCK ULRICH
IPC: C07C67/54 , C07B61/00 , C07C51/48 , C07C59/125 , C07C67/08 , C07C69/708
Abstract: The invention relates to a novel method for producing esters of general formula (I) from compounds of general formula (II) which are contained in aqueous solutions. The inventive method is characterized by the following steps: a) extracting the compounds of general formula (II) directly or after release from their salts in the presence of a C1-C8 alcohol and a water-immiscible solvent and b) esterification with the C1-C8 alcohol in the presence of a catalyst and an entrainer under the conditions of an azeotropic distillation. Steps (a) and (b) can be carried out separately with respect to time and space or in a successive continuous or discontinuous sequence. The variables and substituents in formulae (I, II) have the following meanings: R1 = F, Cl, -O H, -OC1-C10 alkyl, R2 = H, C1-C10 alkyl, R3 = C1-C8 alkyl, Q = -OH, -O- K+, wherein K+ is an alkali cation or alkaline earth cation, n = 0, 1 or 2.
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公开(公告)号：DE50005821D1
公开(公告)日：2004-04-29
申请号：DE50005821
申请日：2000-12-22
Applicant: BASF AG
Inventor： BLOCK ULRICH , SEUBERT ROLF , ULRICH BERNHARD , WUNSCHMANN HELMUT
Abstract: A process and an apparatus for producing a homogeneous mixture of a gaseous aromatic hydrocarbon and an oxygen-containing gas for catalytic gas-phase reactions, in particular a homogeneous mixture of gaseous o-xylene and/or naphthalene and air for preparing phthalic anhydride, are provided. The liquid aromatic hydrocarbon is atomized to form droplets having a diameter of less than 1 mm and injected into an oxygen-containing gas stream (12) preheated to above the boiling point of the aromatic hydrocarbon. According to the invention, the liquid aromatic hydrocarbon is atomized by means of nozzles (15) which form a hollow cone (16), preferably by means of swirl nozzles. The o-xylene/air mixture is advantageously produced in a chamber which is bounded by side walls (18) heated to above the boiling point of the hydrocarbon.
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公开(公告)号：FI83778C
公开(公告)日：1991-08-26
申请号：FI853437
申请日：1985-09-09
Applicant: BASF AG
Inventor： BLOCK ULRICH , MUFF WOLF , NIXDORF KLAUS , WAGNER JOACHIM
IPC: C07D307/60 , B01J3/00 , C07C51/265 , C07C51/31 , C07D307/89 , F04F5/02
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Patent Agency Ranking
公开(公告)号：FI853437A0
公开(公告)日：1985-09-09
申请号：FI853437
申请日：1985-09-09
Applicant: BASF AG
Inventor： BLOCK ULRICH , MUFF WOLF , NIXDROF KLAUS , WAGNER JOACHIM
IPC: C07D307/60 , B01J3/00 , C07C51/265 , C07C51/31 , C07D307/89 , F04F5/02 , C07D
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公开(公告)号：AU528657B2
公开(公告)日：1983-05-05
申请号：AU5729680
申请日：1980-04-10
Applicant: BASF AG
Inventor： WOLF DIETER , BOTT KASPAR , KAIBEL GERD , SCHMIDT RUDOLF , BLOCK ULRICH , SCHOENMAKERS HARTMUT
Abstract: Anhydrous or substantially anhydrous formic acid is obtained by hydrolysis of methyl formate, in a process wherein (a) methyl formate is hydrolyzed, (b) the methanol and excess methyl formate are distilled from the hydrolysis mixture obtained, (c) the bottom product of distillation (b), consisting of formic acid and water, is extracted, in a liquid-liquid extraction, with an extractant which in the main takes up the formic acid, (d) the resulting extract phase, consisting of formic acid, the extractant and a part of the water, is subjected to distillation, (e) the top product obtained from this distillation and consisting of all or part of the water introduced into the distillation, and part of the formic acid, is recycled, as vapor, into the lower part of the distillation column of stage (b), (f) the bottom product of distillation stage (d), consisting of the extractant, with or without part of the water, and the greater part of the formic acid, is separated by distillation into anhydrous or substantially anhydrous formic acid and the extractant, and (g) the extractant leaving stage (f) is recycled to the process.
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公开(公告)号：AT262372T
公开(公告)日：2004-04-15
申请号：AT00985245
申请日：2000-12-22
Applicant: BASF AG
Inventor： BLOCK ULRICH , SEUBERT ROLF , ULRICH BERNHARD , WUNSCHMANN HELMUT
Abstract: A process and an apparatus for producing a homogeneous mixture of a gaseous aromatic hydrocarbon and an oxygen-containing gas for catalytic gas-phase reactions, in particular a homogeneous mixture of gaseous o-xylene and/or naphthalene and air for preparing phthalic anhydride, are provided. The liquid aromatic hydrocarbon is atomized to form droplets having a diameter of less than 1 mm and injected into an oxygen-containing gas stream (12) preheated to above the boiling point of the aromatic hydrocarbon. According to the invention, the liquid aromatic hydrocarbon is atomized by means of nozzles (15) which form a hollow cone (16), preferably by means of swirl nozzles. The o-xylene/air mixture is advantageously produced in a chamber which is bounded by side walls (18) heated to above the boiling point of the hydrocarbon.
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公开(公告)号：DE19904207A1
公开(公告)日：2000-08-10
申请号：DE19904207
申请日：1999-02-03
Applicant: BASF AG
Inventor： DITRICH KLAUS , BLOCK ULRICH
IPC: C07B61/00 , C07C51/48 , C07C59/125 , C07C67/08 , C07C67/54 , C07C69/708 , C07C67/20 , C07C69/02 , C07C69/63 , C07C69/675
Abstract: The invention relates to a novel method for producing esters of general formula (I) from compounds of general formula (II) which are contained in aqueous solutions. The inventive method is characterized by the following steps: a) extracting the compounds of general formula (II) directly or after release from their salts in the presence of a C1-C8 alcohol and a water-immiscible solvent and b) esterification with the C1-C8 alcohol in the presence of a catalyst and an entrainer under the conditions of an azeotropic distillation. Steps (a) and (b) can be carried out separately with respect to time and space or in a successive continuous or discontinuous sequence. The variables and substituents in formulae (I, II) have the following meanings: R = F, Cl, -OH, -OC1-C10 alkyl, R = H, C1-C10 alkyl, R = C1-C8 alkyl, Q = -OH, -O K , wherein K is an alkali cation or alkaline earth cation, n = 0, 1 or 2.
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公开(公告)号：CA2361645A1
公开(公告)日：2000-08-10
申请号：CA2361645
申请日：2000-01-29
Applicant: BASF AG
Inventor： DITRICH KLAUS , BLOCK ULRICH
IPC: C07B61/00 , C07C51/48 , C07C59/125 , C07C67/08 , C07C67/54 , C07C69/708
Abstract: The invention relates to a novel method for producing esters of general formula (I) from compounds of general formula (II) which are contained in aqueous solutions. The inventive method is characterized by the following steps: a) extracting the compounds of general formula (II) directly or after release from their salts in the presence of a C1-C8 alcohol and a water- immiscible solvent and b) esterification with the C1-C8 alcohol in the presence of a catalyst and an entrainer under the conditions of an azeotropi c distillation. Steps (a) and (b) can be carried out separately with respect t o time and space or in a successive continuous or discontinuous sequence. The variables and substituents in formulae (I, II) have the following meanings: R1 = F, Cl, -OH, -OC1-C10 alkyl, R2 = H, C1-C10 alkyl, R3 = C1-C8 alkyl, Q = -O H, -O- K+, wherein K+ is an alkali cation or alkaline earth cation, n = 0, 1 or 2.
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