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公开(公告)号：WO2004080587A8
公开(公告)日：2004-11-11
申请号：PCT/EP2004001673
申请日：2004-02-20
Applicant: BASF AG , BRODHAGEN ANDREAS , SOHN MARTIN , NEVEJANS FILIP , STROEFER ECKHARD , WOELFERT ANDREAS , OEHLENSCHLAEGER STEFFEN
Inventor： BRODHAGEN ANDREAS , SOHN MARTIN , NEVEJANS FILIP , STROEFER ECKHARD , WOELFERT ANDREAS , OEHLENSCHLAEGER STEFFEN
IPC: B01J19/24 , C07C263/10 , C07C265/14
CPC classification number: B01J19/242 , B01J19/243 , B01J2219/00166 , B01J2219/182 , B01J2219/185 , B01J2219/187 , C07C263/10 , C07C265/14
Abstract: The invention relates to a method for producing polyisocyanates by reacting primary amines with phosgene, comprising the following steps: a) mixing the amine with the phosgene; b) reacting the amine with the phosgene in a reactor, inside of which the mixture stays for a period of time and, optionally; c) transferring the discharge from the reactor from step b) into a distillation column. The invention is characterized in that the reactor cited in step b) is provided in the form of a tubular reactor.
Abstract translation: 本发明涉及一种通过伯胺与光气，其包括以下步骤：a反应来制备多异氰酸酯）混合在住宅中反应器中的光气的胺的胺我光气b）中反应，如果在反应器的流出物的适当的，c）中的转换 步骤b）在蒸馏塔中，其特征在于，步骤b）中的停留时间反应器设计为管式反应器。
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2.发明申请
公开(公告)号：WO03040075A3
公开(公告)日：2003-08-07
申请号：PCT/EP0212346
申请日：2002-11-05
Applicant: BASF AG , STROEFER ECKHARD , SOHN MARTIN , HASSE HANS , SCHILLING KLEMENS
Inventor： STROEFER ECKHARD , SOHN MARTIN , HASSE HANS , SCHILLING KLEMENS
Abstract: The invention relates to an aqueous formaldehyde solution, containing formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in a total concentration x >/= 65 wt. %. Said solution is characterized in that the average molar mass M of the polyoxymethylene glycols is equal or inferior to the values, which are obtained according to formula I, depending on the formaldehyde concentration, whereby M represents the average molar mass and x the total concentration of formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in wt. % (formaldehyde total concentration).
Abstract translation: 本发明涉及包含单体甲醛，亚甲基二醇和聚氧亚甲基二醇在> / = 65重量％的总浓度x的形式甲醛甲醛水溶液，其特征在于，所述聚氧亚甲基二醇中的甲醛浓度的函数的平均摩尔质量M等于或小于 的平均值：值根据式I是获得 - 均分子量M; - 在单体甲醛，亚甲基二醇和以重量％聚甲醛二醇（总甲醛浓度）的形式的甲醛X总浓度。
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公开(公告)号：AT382600T
公开(公告)日：2008-01-15
申请号：AT04740321
申请日：2004-06-25
Applicant: BASF AG
Inventor： STEINBRENNER ULRICH , STROEFER ECKHARD , SOHN MARTIN , QUASCHNING VERONIKA , MOEHWALD HELMUT , THIELE KAI , DEBERDT FILIP , JACOBS JAN , PINKOS ROLF
IPC: C07C209/78 , C07C209/86 , C07C211/50
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：DE10260093A1
公开(公告)日：2004-07-01
申请号：DE10260093
申请日：2002-12-19
Applicant: BASF AG
Inventor： SOHN MARTIN , STROEFER ECKHARD , NEVEJANS FILIP , PENZEL ULRICH , PALLASCH HANS-JUERGEN , SANDER MICHAEL , SCHWARZ HANS VOLKMAR , MACKENROTH WOLFGANG
IPC: C07C263/10 , C07C263/20 , C07C265/14 , B01D3/00
Abstract: The present invention relates to a process for preparing isocyanates by reaction of amines with phosgene in a reactor and subsequent separation of the isocyanate from the reaction mixture leaving the reactor and purification of the isocyanate, wherein the separation and purification of the isocyanate is carried out in a column having a pressure at the top of 1-950 mbar, preferably 5-50 mbar, particularly preferably 10-20 mbar, and a temperature at the bottom of 90-250° C., preferably 120-170° C., particularly preferably 130-150° C., and the pure isocyanate stream is preferably taken off in liquid or gaseous form at a side offtake of the column.
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公开(公告)号：DE502004005838D1
公开(公告)日：2008-02-14
申请号：DE502004005838
申请日：2004-06-25
Applicant: BASF AG
Inventor： STEINBRENNER ULRICH , STROEFER ECKHARD , SOHN MARTIN , QUASCHNING VERONIKA , MOEHWALD HELMUT , THIELE KAI , DEBERDT FILIP , JACOBS JAN D , PINKOS ROLF
IPC: C07C209/78 , C07C209/86 , C07C211/50
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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Patent Agency Ranking
公开(公告)号：DE50304616D1
公开(公告)日：2006-09-21
申请号：DE50304616
申请日：2003-12-13
Applicant: BASF AG
Inventor： SOHN MARTIN , STROEFER ECKHARD , NEVEJANS FILIP , PENZEL ULRICH , PALLASCH HANS-JUERGEN , VAN DEN ABEEL PETER , DEBERDT FILIP , JACOBS JAN D , MACKENROTH WOLFGANG
IPC: C07C263/20
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：HU0402363A2
公开(公告)日：2005-02-28
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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公开(公告)号：DE10260082A1
公开(公告)日：2004-07-01
申请号：DE10260082
申请日：2002-12-19
Applicant: BASF AG
Inventor： SOHN MARTIN , STROEFER ECKHARD , NEVEJANS FILIP , PENZEL ULRICH , PALLASCH HANS-JUERGEN , LEUTHOLD RENE , BRODHAGEN ANDREAS , WOELFERT ANDREAS , MACKENROTH WOLFGANG , MAURER MARKUS
IPC: C07C263/10 , C07C265/14
Abstract: The invention relates to a process for preparing polyisocyanates by reacting organic amines with phosgene, wherein the reaction is carried out in at least three stages, with the first stage being carried out in a mixing apparatus, the second stage in at least one residence apparatus and the third stage in at least one separation apparatus and the pressure in each successive stage being lower than that in the previous stage.
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公开(公告)号：DE10116316A1
公开(公告)日：2002-10-24
申请号：DE10116316
申请日：2001-04-02
Applicant: BASF AG
Inventor： STROEFER ECKHARD , SOHN MARTIN , LANGENSIEPEN HANS-WERNER , MUELLER CHRISTIAN , KRUG GEORG , KEMPER REINHARD
IPC: C07C209/78 , C07C211/50 , C07C209/60
Abstract: A process for the production of 4,4'-diaminoditolylmethane comprises reaction of o-toluidine with formaldehyde in the presence of an acid catalyst whereby the ratio of acid catalyst to o-toluidine is 0.8-1.2 equivalents of acid per mole of o-toluidine. providing a process for the production of 4,4'-diaminoditolylmethane.
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公开(公告)号：DE10027778A1
公开(公告)日：2001-12-13
申请号：DE10027778
申请日：2000-06-07
Applicant: BASF AG
Inventor： STROEFER ECKHARD , MUELLER CHRISTIAN , SOHN MARTIN , KAIBEL GERD
Abstract: Production of amine-formaldehyde condensate involves fractionating a mixture of polyoxymethylene glycols, formaldehyde, methylene glycol and water in a reaction column and reacting the reactive fraction with a countercurrent of amine in the same column. Production of amine-formaldehyde condensates (I) by reacting: (a) amine(s); with (b) a mixture containing: (i) poly-oxymethylene glycols; (ii) monomeric formaldehyde; (iii) methylene glycol; and (iv) water. The method involves fractionation of mixture the, followed by reaction with the amine in a reaction column. The amine and that part of the fractionated mixture (b) which reacts with (a) move in countercurrent to one another.
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