Title:
イソシアネートの製造方法
Document Type and Number:
Japanese Patent JP2013512881
Kind Code:
A
Abstract:
Process for preparing aromatic isocyanates by reacting the corresponding formamides with an oxygen-comprising gas over noble metal catalysts at temperatures of from 300 to 600° C. and a contact time of from 1 to 1000 ms, wherein: a. the formamide is vaporized before entering the reaction zone, b. the reaction mixture obtained is quenched with an alcohol-comprising quenching liquid and c. the urethane formed is dissociated into isocyanate and alcohol.
Inventors:
Matke, Torsten
Streffer, Eckhart
Reshinsky, Yulia
Abdullah, Radwan
Franzke, Axel
Bock michael
Streffer, Eckhart
Reshinsky, Yulia
Abdullah, Radwan
Franzke, Axel
Bock michael
Application Number:
JP2012541517A
Publication Date:
April 18, 2013
Filing Date:
December 03, 2010
Export Citation:
Assignee:
BASF SE
International Classes:
C07C263/04; C07C265/12; C07C265/14; C07B61/00
Domestic Patent References:
| JP2008503532A | 2008-02-07 | |||
| JP2005526744A | 2005-09-08 | |||
| JPS61178956A | 1986-08-11 | |||
| JPS5439018A | 1979-03-24 | |||
| JP2006069941A | 2006-03-16 | |||
| JP2006036778A | 2006-02-09 | |||
| JPH0641045A | 1994-02-15 |
Foreign References:
| US4537726A | 1985-08-27 | |||
| US4369141A | 1983-01-18 | |||
| US20050154227A1 | 2005-07-14 | |||
| US4207251A | 1980-06-10 | |||
| US20060025626A1 | 2006-02-02 | |||
| US5360931A | 1994-11-01 |
Attorney, Agent or Firm:
Satoshi Eto