公开(公告)号：WO2015162106A1

公开(公告)日：2015-10-29

申请号：PCT/EP2015/058550

申请日：2015-04-21

Applicant: BASF SE

Inventor： HEILIG, Manfred ,  SCHULZ, Thomas ,  MATTKE, Torsten ,  NEVEJANS, Filip ,  THIELE, Kai

IPC: C07C263/10 ,  C08G18/76

CPC classification number: C07C263/10 ,  C07C265/12

Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung von Isocyanaten durch Umsetzung von primären Aminen mit Phosgen in einem Lösungsmittel, wobei das Lösungsmittel ein Dialkylcarbonat enthält.

Abstract translation: 本发明涉及一种通过与光气的伯胺在一溶剂，其中所述溶剂包括二烷基碳酸酯反应制备异氰酸酯的方法。

公开(公告)号：WO2011080059A1

公开(公告)日：2011-07-07

申请号：PCT/EP2010/069526

申请日：2010-12-13

Applicant: BASF SE ,  SIEGERT, Markus ,  MATTKE, Torsten ,  STEINMETZ, Tilmann ,  PALLASCH, Hans-Jürgen ,  NEVEJANS, Filip

Inventor： SIEGERT, Markus ,  MATTKE, Torsten ,  STEINMETZ, Tilmann ,  PALLASCH, Hans-Jürgen ,  NEVEJANS, Filip

IPC: C07C209/78 ,  C07C209/84 ,  C07C211/50

CPC classification number: C07C209/78 ,  C07C211/50

Abstract: Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Diphenylmethandiamin, umfassend die Schritte a) Umsetzung von Anilin mit Formaldehyd in Anwesenheit einer Säure, b) Neutralisation des überwiegenden Teils der Säure mit Ammoniak und/oder wässriger Ammoniaklösung, c) Trennung des Reaktionsgemisches aus Schritt b) in eine wässrige und eine organische Phase, d) Neutralisation des übrigen in der organischen Phase enthaltenen Teils der Säure mit wässriger Alkalihydroxidlösung, e) Trennung des Reaktionsgemisches aus Schritt d) in eine wässrige und eine organische Phase, f) Behandlung der in Schritt c) erhaltenen wässrigen Phase oder gegebenenfalls der vereinigten wässrigen Phasen aus den Schritten c) und e) mit mindestens einem Oxid oder Hydroxid eines Erdalkalimetalls, g) Abtrennung des in Schritt f) erhaltenen Ammoniaks.

Abstract translation: 本发明涉及用于二苯基甲烷二胺的制备方法，其包括的在酸的存在下反应苯胺与甲醛的步骤）中，从步骤b的反应混合物B）的大部分与氨和/或氨水溶液的酸的中和，c）中分离 ）在水相和包含在与碱金属氢氧化物水溶液，例如有机相中的酸的其余部分的有机相，D）中和）从步骤d的反应混合物分离）成水相和有机相，F）在步骤处理C的 ）中得到的水相，或与至少一种氧化物或碱土金属的氢氧化物，克）在步骤f中获得的氨）的分离步骤任选C的合并的水相）和e）。

公开(公告)号：EP2513038B1

公开(公告)日：2015-02-25

申请号：EP10798034.4

申请日：2010-12-13

Applicant: BASF SE

Inventor： SIEGERT, Markus ,  MATTKE, Torsten ,  STEINMETZ, Tilmann ,  PALLASCH, Hans-Jürgen ,  NEVEJANS, Filip

IPC: C07C209/78 ,  C07C209/84 ,  C07C211/50

CPC classification number: C07C209/78 ,  C07C211/50

公开(公告)号：EP1575904B2

公开(公告)日：2013-09-04

申请号：EP03789262.7

申请日：2003-12-13

Applicant: BASF SE

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  LEUTHOLD, Rene ,  BRODHAGEN, Andreas ,  WÖLFERT, Andreas ,  MACKENROTH, Wolfgang ,  MAURER, Markus

IPC: C07C263/10 ,  C07C265/14

CPC classification number: C07C263/10 ,  C07C265/14

公开(公告)号：EP2513038A1

公开(公告)日：2012-10-24

申请号：EP10798034.4

申请日：2010-12-13

Applicant: BASF SE

Inventor： SIEGERT, Markus ,  MATTKE, Torsten ,  STEINMETZ, Tilmann ,  PALLASCH, Hans-Jürgen ,  NEVEJANS, Filip

IPC: C07C209/78 ,  C07C209/84 ,  C07C211/50

CPC classification number: C07C209/78 ,  C07C211/50

Abstract: The invention relates to a method for producing diphenylmethandiamine, comprising the steps of a) reacting aniline with formaldehyde in the presence of an acid, b) neutralizing most of the acid with ammonia and/or aqueous ammonia solution, c) separating the reaction mixture from step b) into an aqueous and an organic phase, d) neutralizing the remaining part of the acid in the organic phase with aqueous alkali hydroxide solution, e) separating the reaction mixture from step d) into an aqueous and an organic phase, f) treating the aqueous phase obtained in step c) or optionally the unified aqueous phases from steps c) and e) with at least one oxide or hydroxide of an alkaline earth metal, and g) separating the ammonia obtained in step f).

公开(公告)号：EP1575906B1

公开(公告)日：2010-11-17

申请号：EP03789264.3

申请日：2003-12-13

Applicant: BASF SE

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  VAN DEN ABEEL, Peter ,  DEBERDT, Filip ,  JACOBS, Jan D. ,  MACKENROTH, Wolfgang

IPC: C07C263/10 ,  B01D53/70 ,  C01B7/07

CPC classification number: C01B7/0731 ,  B01D53/002 ,  B01D2257/2045 ,  B01D2257/2064 ,  C01B7/0712 ,  C01B32/80 ,  C07C263/10 ,  Y02P20/154 ,  C07C265/14 ,  C07C265/12 ,  C07C265/10

Abstract: The invention relates to a method for partially or completely separating a substance mixture consisting of hydrogen chloride and phosgene, optionally of solvents and optionally of low-boiling fractions and inert substances such as those that normally arise during the production of isocyanates by reacting amines with phosgene. The inventive method is characterized in that a partial or complete condensation of phosgene is firstly carried out followed by a distillation or stripping inside a column for removing the hydrogen chloride from the bottom product phosgene and lastly, a washing of the top product hydrogen chloride with the process solvent for absorbing the phosgene in the process solvent is carried out. A subsequent purification by means of adsorption on activated carbon or other appropriate methods can be used for removing solvent remnants.

公开(公告)号：EP1575905B1

公开(公告)日：2009-09-09

申请号：EP03789263.5

申请日：2003-12-13

Applicant: BASF SE

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  SANDER, Michael ,  SCHWARZ, Hans, Volkmar ,  MACKENROTH, Wolfgang

IPC: C07C263/10 ,  C07C263/20 ,  C07C265/14

CPC classification number: C07C263/20 ,  C07C263/10 ,  C07C265/14

Abstract: The invention relates to a method for producing isocyanates by reacting amines with phosgene inside a reactor followed by separating the isocyanate out from the reaction mixture exiting the reactor and purifying this isocyanate. The invention is characterized in that the isocyanate is separated out and purified in a column with a top pressure of 1 to 950 mbar, preferably 5 to 50 mbar, particularly preferred 10 to 20 mbar, with a bottom temperature of 90 to 250 °C, preferably 120 to 170 °C, particularly preferred 130 to 150 °C, and that the pure isocyanate flow is withdrawn in liquid or gaseous form, preferably in a side-stream of the column.

公开(公告)号：EP3134384A1

公开(公告)日：2017-03-01

申请号：EP15718846.7

申请日：2015-04-21

Applicant: BASF SE

Inventor： HEILIG, Manfred ,  SCHULZ, Thomas ,  MATTKE, Torsten ,  NEVEJANS, Filip ,  THIELE, Kai

IPC: C07C263/10 ,  C08G18/76

CPC classification number: C07C263/10 ,  C07C265/12

Abstract: The invention relates to a method for producing isocyanates by reacting primary amines with phosgene in a solvent, the solvent containing a dialkyl carbonate.

Abstract translation: 本发明涉及通过使伯胺与光气在溶剂中反应来制备异氰酸酯的方法，其中溶剂包括碳酸二烷基酯。

公开(公告)号：EP1575904B1

公开(公告)日：2010-10-13

申请号：EP03789262.7

申请日：2003-12-13

Applicant: BASF SE

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  LEUTHOLD, Rene ,  BRODHAGEN, Andreas ,  WÖLFERT, Andreas ,  MACKENROTH, Wolfgang ,  MAURER, Markus

IPC: C07C263/10 ,  C07C265/14

CPC classification number: C07C263/10 ,  C07C265/14

Abstract: The invention relates to a method for the continuous production of polyisocyanates by reaction of organic amines with phosgene, characterised in that the reaction occurs in at least three stages, whereby the first stage is in a mixing unit, the second stage in at least one residence time unit and the third stage in at least one material separating apparatus and the pressure in each subsequent stage is lower than in the previous stage.

公开(公告)号：EP1575908B2

公开(公告)日：2010-01-20

申请号：EP03785813.1

申请日：2003-12-13

Applicant: BASF SE

Inventor： SOHN, Martin ,  STROEFER, Eckhard ,  NEVEJANS, Filip ,  PENZEL, Ulrich ,  PALLASCH, Hans-Jürgen ,  VAN DEN ABEEL, Peter ,  DEBERDT, Filip ,  JACOBS, Jan D. ,  MACKENROTH, Wolfgang

IPC: C07C263/20

CPC classification number: C07C263/10 ,  C07C263/20 ,  Y10S203/08 ,  C07C265/14

Abstract: The invention relates to a method for producing isocyanates by reacting amines with phosgene in the presence of inert organic solvents inside a reactor and by subsequently processing the reaction mixture exiting the reactor. The invention is characterized in that the separating out of the solvent ensues in a two-step or multi-step, preferably two-step distillation process, and the solvent is separated out in a first apparatus under a pressure of 0.1 to 15 bar and in a second or other apparatuses under a pressure of 1 to 900 mbar. The condensation heat of the solvent vapor from the first apparatus is used for partially or completely vaporizing solvent in the second apparatus.