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1. WO2011113737 - METHOD FOR PRODUCING ISOCYANATES

Publication Number WO/2011/113737
Publication Date 22.09.2011
International Application No. PCT/EP2011/053583
International Filing Date 10.03.2011
IPC
C07C 263/10 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
263Preparation of derivatives of isocyanic acid
10by reaction of amines with carbonyl halides, e.g. with phosgene
C07C 265/14 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
265Derivatives of isocyanic acid
14containing at least two isocyanate groups bound to the same carbon skeleton
CPC
C07C 263/10
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
263Preparation of derivatives of isocyanic acid
10by reaction of amines with carbonyl halides, e.g. with phosgene
C07C 265/14
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
265Derivatives of isocyanic acid
14containing at least two isocyanate groups bound to the same carbon skeleton
Applicants
  • BASF SE [DE]/[DE] (AllExceptUS)
  • LEHR, Vanessa, Simone [DE]/[DE] (UsOnly)
  • MATTKE, Torsten [DE]/[DE] (UsOnly)
Inventors
  • LEHR, Vanessa, Simone
  • MATTKE, Torsten
Common Representative
  • BASF SE
Priority Data
10156944.018.03.2010EP
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN
(EN) METHOD FOR PRODUCING ISOCYANATES
(FR) PROCÉDÉ DE PRODUCTION D'ISOCYANATES
Abstract
(DE) Die Erfindung betrifft ein Verfahren zur Herstellung von Isocyanaten umfassend (a) die Umsetzung von mindestens einem Amin mit Phosgen in der Gasphase in einer Reaktionszone und (b) die anschließende Abkühlung der Reaktionsgase in einer Kühlzone mittels indirekter Kühlung, wobei das die Wärme der Reaktionsgase aufnehmende Kühlmedium zumindest im Bereich der höchsten Temperatur in der Kühlzone im Gegenstrom zum Produktstrom geführt wird.
(EN) The invention relates to a method for producing isocyanates, comprising (a) reacting at least one amine with phosgene in the gas phase in a reaction zone and (b) subsequently cooling the reaction gases in a cooling zone by means of indirect cooling, wherein the cooling medium absorbing the heat of the reaction gases is fed in counterflow to the product flow at least in the area of the highest temperature in the cooling zone.
(FR) L'invention concerne un procédé de production d'isocyanates comprenant (a) la réaction d'au moins une amine avec du phosgène en phase gazeuse dans une zone réactionnelle et ensuite (b) le refroidissement des gaz réactionnels par refroidissement indirect dans une zone de refroidissement, le réfrigérant qui absorbe la chaleur des gaz réactionnels circulant à contre-courant du flux de produit au moins dans la zone de température la plus élevée dans la zone de refroidissement.
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