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公开(公告)号：DE502005001422D1
公开(公告)日：2007-10-18
申请号：DE502005001422
申请日：2005-01-07
Applicant: BASF AG
Inventor： KNOESCHE CARSTEN , SOHN MARTIN , PENZEL ULRICH , PALLASCH HANS-JUERGEN , GEORGI GUNTER , MACKENROTH WOLFGANG , SCHWARZ HANS VOLKMAR , MAIXNER STEFAN , MOLZ GERALD , STROEFER ECKHARD
IPC: C07C209/84 , C07C211/50
Abstract: The invention relates to a process for distillatively preparing TDA from a reactant stream comprising TDA, high boilers and low boilers in a dividing wall column in which a dividing wall is disposed in the longitudinal direction of the column to form an upper combined column region ( 2 ), a lower combined column region ( 3 ), a feed section ( 4 ) having a rectifying section ( 5 ) and stripping section ( 6 ), and also a withdrawal section ( 7 ) having a rectifying section ( 9 ) and stripping section ( 8 ), which comprises the following steps: a. feeding the reactant stream ( 13 ) into the feed section ( 4 ) of the dividing wall column ( 1 ); b. drawing off a low boiler fraction via the top of the column ( 11 ); c. drawing off TDA via a side draw ( 14 ) in the withdrawal section ( 7 ) of the dividing wall column ( 1 ); d. drawing off a low boiler fraction via the bottom of the column ( 12 ).
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公开(公告)号：ES2270145T3
公开(公告)日：2007-04-01
申请号：ES03785813
申请日：2003-12-13
Applicant: BASF AG
Inventor： SOHN MARTIN , STROEFER ECKHARD , NEVEJANS FILIP , PENZEL ULRICH , PALLASCH HANS-JURGEN , VAN DEN ABEEL PETER
IPC: C07C263/20
Abstract: Procedimiento para la obtención de isocianatos mediante reacción de aminas con fosgeno en presencia de disolventes orgánicos inertes en un reactor, y subsiguiente elaboración de la mezcla de reacción que abandona el reactor, caracterizado porque la separación de disolventes se efectúa en un procedimiento de destilación de dos o más etapas, y separándose el disolvente en una primera instalación a una presión de 0, 1 a 15 bar, y en una segunda instalación, o instalación adicional, a 1 hasta 900 mbar, siendo el nivel de presión en la segunda instalación más reducido que en la primera instalación; situándose la temperatura de cola de la primera columna, según presión, entre 60ºC a 0, 1 bar y 270ºC a 15 bar, y la de la segunda columna, según presión, entre 75ºC a 1 mbar y 250ºC a 900 mbar, y empleándose el calor de condensación del vapor de disolvente de la primera instalación para la evaporación parcial o completa de disolvente en la segunda instalación.
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公开(公告)号：DE10331772A1
公开(公告)日：2005-02-03
申请号：DE10331772
申请日：2003-07-11
Applicant: BASF AG
Inventor： STEINBRENNER ULRICH , STROEFER ECKHARD , SOHN MARTIN , QUASCHNING VERONIKA , MOEHWALD HELMUT , THIELE KAI , DEBERDT FILIP , JACOBS JAN D , PINKOS RALF
IPC: C07C209/78 , C07C209/86 , C07C211/50 , C07C209/60
Abstract: A process is described for preparing diaminodiarylmethanes comprising the steps a) reacting an aromatic amine with a methylene-donating agent in the presence of homogeneous acid catalysts, b) removing the homogeneous acid catalyst from the reaction product, c) working up and purifying the reaction product, which comprises removing the homogeneous acid catalyst from the reaction mixture by adsorption to a solid adsorbent.
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公开(公告)号：BR0213904A
公开(公告)日：2004-08-31
申请号：BR0213904
申请日：2002-11-05
Applicant: BASF AG
Inventor： FER ECKHARD ST , SOHN MARTIN , HASSE HANS , SCHILLING KLEMENS
Abstract: In an aqueous formaldehyde solution comprising formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in a total concentration x of >=65% by weight, the mean molar mass {overscore (M of the polyoxymethylene glycols is, as a function of the formaldehyde concentration, equal to or less than the values given by equation I: ( M _ g / mol ) = 48 + 6.589 . 10 - 1 . ( x % by weight ) + 4.725 . 10 2 . ( x % by weight ) 2 - 3.434 . 10 - 3 . ( x % by weight ) 3 + 9.625 . 10 - 5 . ( x % by weight ) 4 - 1.172 . 10 6 . ( x % by weight ) 5 + 5.357 . 10 - 9 . ( x % by weight ) 6 ( I ) where: {overscore (M is the mean molar mass, and x is the total concentration of formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in % by weight (total formaldehyde concentration).
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公开(公告)号：AU2003293873A1
公开(公告)日：2004-07-14
申请号：AU2003293873
申请日：2003-12-13
Applicant: BASF AG
Inventor： SOHN MARTIN , STROEFER ECKHARD , NEVEJANS FILIP , PENZEL ULRICH , PALLASCH HANS-JURGEN , ABEEL PETER VAN DEN , DEBERDT FILIP , JACOBS JAN D , MACKENROTH WOLFGANG
IPC: C01B7/07 , C01B32/80 , C07C263/10 , B01D53/70
Abstract: The invention relates to a process for the partial or complete separation of a mixture comprising hydrogen chloride and phosgene, possibly solvents and possibly low boilers and inerts as are typically obtained in the preparation of isocyanates by reaction of amines with phosgene, which comprises firstly carrying out a partial or complete condensation of phosgene, then a distillation or stripping step in a column to remove the hydrogen chloride from the bottom product phosgene and subsequently a scrub of the top product hydrogen chloride by means of the process solvent to absorb the phosgene in the process solvent. An after-purification by means of adsorption on activated carbon or by another suitable method can subsequently be carried out to remove solvent residues.
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Patent Agency Ranking
公开(公告)号：DE10260027A1
公开(公告)日：2004-07-08
申请号：DE10260027
申请日：2002-12-19
Applicant: BASF AG
Inventor： SOHN MARTIN , STROEFER ECKHARD , NEVEJANS FILIP , PENZEL ULRICH , PALLASCH HANS-JUERGEN , ABEEL PETER VAN DEN , DEBERDT FILIP , JACOBS JAN D , MACKENROTH WOLFGANG
IPC: C07C263/20 , C07C263/18 , C07C263/10 , B01D1/00 , B01D5/00
Abstract: The invention relates to a process for preparing isocyanates by reaction of amines with phosgene in the presence of inert organic solvents in a reactor and subsequent work-up of the reaction mixture leaving the reactor, wherein the solvent is separated off in a two-stage or multistage, preferably two-stage, distillation process in which the solvent is separated off at a pressure of 0.1-15 bar in a first apparatus and at 1-900 mbar in a second apparatus or further apparatuses, with the heat of condensation of the solvent vapor from the first apparatus being used for partial or complete vaporization of solvent in the second apparatus.
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公开(公告)号：AU2002351846A1
公开(公告)日：2003-05-19
申请号：AU2002351846
申请日：2002-11-05
Applicant: BASF AG
Inventor： STROFER ECKHARD , HASSE HANS , SOHN MARTIN , SCHILLING KLEMENS
Abstract: In an aqueous formaldehyde solution comprising formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in a total concentration x of >=65% by weight, the mean molar mass {overscore (M of the polyoxymethylene glycols is, as a function of the formaldehyde concentration, equal to or less than the values given by equation I: ( M _ g / mol ) = 48 + 6.589 . 10 - 1 . ( x % by weight ) + 4.725 . 10 2 . ( x % by weight ) 2 - 3.434 . 10 - 3 . ( x % by weight ) 3 + 9.625 . 10 - 5 . ( x % by weight ) 4 - 1.172 . 10 6 . ( x % by weight ) 5 + 5.357 . 10 - 9 . ( x % by weight ) 6 ( I ) where: {overscore (M is the mean molar mass, and x is the total concentration of formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in % by weight (total formaldehyde concentration).
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公开(公告)号：HU228580B1
公开(公告)日：2013-04-29
申请号：HU0402363
申请日：2002-11-05
Applicant: BASF AG
Inventor： STROEFER ECKHARD , SOHN MARTIN , HASSE HANS , SCHILLING KLEMENS
Abstract: In an aqueous formaldehyde solution comprising formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in a total concentration x of >=65% by weight, the mean molar mass {overscore (M of the polyoxymethylene glycols is, as a function of the formaldehyde concentration, equal to or less than the values given by equation I: ( M _ g / mol ) = 48 + 6.589 . 10 - 1 . ( x % by weight ) + 4.725 . 10 2 . ( x % by weight ) 2 - 3.434 . 10 - 3 . ( x % by weight ) 3 + 9.625 . 10 - 5 . ( x % by weight ) 4 - 1.172 . 10 6 . ( x % by weight ) 5 + 5.357 . 10 - 9 . ( x % by weight ) 6 ( I ) where: {overscore (M is the mean molar mass, and x is the total concentration of formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in % by weight (total formaldehyde concentration).
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19.发明专利
公开(公告)号：SG175661A1
公开(公告)日：2011-11-28
申请号：SG2011076726
申请日：2005-03-21
Applicant: BASF AG
Inventor： SOHN MARTIN , STROEFER ECKHARD , SCHUBERT OLGA , GRASSLER THOMAS , FIENE MARTIN , SESING MARTIN , SEIDEMANN LOTHAR , WALSDORFF CHRISTIAN
Abstract: FLUIDIZED BED METHOD AND REACTOR FOR CARRYING OUT EXOTHERMIC CHEMICAL EQUILIBRIUM REACTIONSAbstractThe invention relates to a process for carrying out exothermic chemical equilib rium reactions in a fluidized-bed reactor, wherein there is a temperature distribu tion in the fluidized bed of the fluidized-bed reactor and the temperature differencebetween the lowest temperature and the highest temperature is at least 10 K. The invention further relates to a fluidized-bed reactor for carrying out chemical reac tions In a fluidized bed (5), wherein at least one heat exchanger (12, 28) is located in the fluidized bed (5) to control the temperature distribution.(Figure 1)
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公开(公告)号：DE102005040286A1
公开(公告)日：2007-03-01
申请号：DE102005040286
申请日：2005-08-25
Applicant: BASF AG
Inventor： SCHUBERT OLGA , SESING MARTIN , SEIDEMANN LOTHAR , KARCHES MARTIN , GRASLER THOMAS , SOHN MARTIN
Abstract: An oxidation process employing a mechanically stable catalyst of an active metal or combination of active metals supported on aluminum oxide, which is predominantly alpha-aluminum oxide, is provided. The active metal or metals is optionally one or a mixture of ruthenium, copper, gold, an alkaline earth metal, an alkali metal, palladium, platinum, osmium, iridium, silver, and rhenium. The process is applicable to the oxidation of hydrogen chloride to chlorine in a Deacon process.
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