Title:
イソシアネートの製造方法
Document Type and Number:
Japanese Patent JP5746205
Kind Code:
B2
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:
July 08, 2015
Filing Date:
December 03, 2010
Export Citation:
Assignee:
BASF SE
International Classes:
C07C263/04; C07C265/12; C07C265/14
Domestic Patent References:
| JP61178956A | ||||
| JP54039018A | ||||
| JP2006069941A | ||||
| JP2006036778A | ||||
| JP6041045A | ||||
| JP2008503532A | ||||
| JP2005526744A |
Foreign References:
| US4537726 | ||||
| US4207251 | ||||
| US20060025626 | ||||
| US5360931 | ||||
| US4369141 | ||||
| US20050154227 |
Attorney, Agent or Firm:
Satoshi Eto