EP 1866282 A1 20071219 - MDI PRODUCTION BY MEANS OF LIQUID PHASE AND GAS PHASE PHOSGENATION
Title (en)
MDI PRODUCTION BY MEANS OF LIQUID PHASE AND GAS PHASE PHOSGENATION
Title (de)
MDI HERSTELLUNG MITTELS FLÜSSIGPHASEN- UND GASPHASENPHOSGENIERUNG
Title (fr)
PRODUCTION DE MDI AU MOYEN D'UNE PHOSPHOGENATION EN PHASE LIQUIDE ET EN PHASE GAZEUSE
Publication
Application
Priority
- EP 2006060940 W 20060322
- DE 102005014846 A 20050330
Abstract (en)
[origin: WO2006103189A1] The invention relates to a method for producing isocyanates, comprising the following steps: (1) producing a raw MDA mixture by reacting aniline with formaldehyde; (2) separating the raw MDA mixture into MMDA and PMDA; (3a) phosgenating the PMDA's separated in step 2 in the liquid phase to form PMDI, and; (3b) phosgenating the MMDA's separated in step 2 in the gas phase to form MMDI.
IPC 8 full level
C07C 263/10 (2006.01); C07C 265/14 (2006.01)
CPC (source: EP KR US)
C07C 263/10 (2013.01 - EP KR US); C07C 265/14 (2013.01 - KR)
Citation (search report)
See references of WO 2006103189A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102005014846 A1 20061005; CN 101137617 A 20080305; EP 1866282 A1 20071219; JP 2008534550 A 20080828; KR 20070116676 A 20071210; US 2008200721 A1 20080821; WO 2006103189 A1 20061005
DOCDB simple family (application)
DE 102005014846 A 20050330; CN 200680008014 A 20060322; EP 06725224 A 20060322; EP 2006060940 W 20060322; JP 2008503483 A 20060322; KR 20077025101 A 20071030; US 90836306 A 20060322