Title:
気相中でのイソシアネートの製造方法
Document Type and Number:
Japanese Patent JP2012533525
Kind Code:
A
Abstract:
Isocyanates are produced by reacting a primary amine with phosgene in the gas phase. In this process, the amine is vaporized and then superheated prior to introduction into the reactor. The amine is superheated to a temperature at least 10° C. above dew point before entry into the reactor. A pressure difference between the vaporizer and entry into the reactor of from 1 to 500 mbar is maintained.
Inventors:
Reiner Bruns
Wolfgang Lorenz
Andreas Karl Rausch
Wolfgang Lorenz
Andreas Karl Rausch
Application Number:
JP2012519914A
Publication Date:
December 27, 2012
Filing Date:
July 06, 2010
Export Citation:
Assignee:
Bayer MaterialScience AG
International Classes:
C07C263/10; C07C265/04; C07C265/10; C07C265/14
Domestic Patent References:
| JP2008174549A | 2008-07-31 | |||
| JP2007039459A | 2007-02-15 | |||
| JP2012519667A | 2012-08-30 |
Attorney, Agent or Firm:
Mitsuo Tanaka
Takuji Yamada
Kenichi Morizumi
Kajita Marina
Takuji Yamada
Kenichi Morizumi
Kajita Marina