Title:
METHOD FOR PRODUCING DIISOCYANATES BY GAS-PHASE PHOSGENATION
Document Type and Number:
WIPO Patent Application WO/2011/018443
Kind Code:
A3
Abstract:
The invention relates to a method for producing diisocyanates by gas-phase phosgenation, starting from an educt flow comprising the corresponding diamines and a phosgene, the educt flows each being separately converted to the gas phase and preheated to the reaction temperature of the gas-phase phosgenation, characterized in that waste heat from a plant for producing chlorine by heterogeneous catalyzed oxidation of hydrogen chloride using the Deacon method is used to this end.
Inventors:
MATTKE TORSTEN (DE)
OLBERT GERHARD (DE)
KNOESCHE CARSTEN (DE)
SCHELLING HEINER (DE)
OLBERT GERHARD (DE)
KNOESCHE CARSTEN (DE)
SCHELLING HEINER (DE)
Application Number:
PCT/EP2010/061574
Publication Date:
April 21, 2011
Filing Date:
August 10, 2010
Export Citation:
Assignee:
BASF SE (DE)
MATTKE TORSTEN (DE)
OLBERT GERHARD (DE)
KNOESCHE CARSTEN (DE)
SCHELLING HEINER (DE)
MATTKE TORSTEN (DE)
OLBERT GERHARD (DE)
KNOESCHE CARSTEN (DE)
SCHELLING HEINER (DE)
International Classes:
C07C265/14; C07C263/10
Domestic Patent References:
| WO2008125236A2 | 2008-10-23 | |||
| WO1997011026A1 | 1997-03-27 | |||
| WO2007085476A2 | 2007-08-02 | |||
| WO2008055899A1 | 2008-05-15 |
Foreign References:
| EP1935875A1 | 2008-06-25 | |||
| US4959202A | 1990-09-25 |
Other References:
See also references of EP 2464625A2
Attorney, Agent or Firm:
ELLWANGER & KERN PATENTANWÄLTE (Mannheim, DE)
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