Title:
気相中でのイソシアネートの製造方法
Document Type and Number:
Japanese Patent JP5366393
Kind Code:
B2
Abstract:
Producing isocyanates by reacting primary amines with phosgene, comprises (a) reacting phosgene and amines at above the boiling temperature of the amine and within an average contact time of 0.05-15 seconds in a reaction area, (b) cooling the gas mixture taken from the reaction area for the condensation of formed isocyanate, where the cooling process is a single step direct cooling process and takes place in a cooling section in two or more consecutively arranged cooling zones and (c) separating the non-condensed isocyanate from the mixture by washing with a washing fluid.
Inventors:
Fritz Paul
Claus Biscoop
Reiner Bruns
Fleet Helm Stephens
Herbert Stutz
Claus Biscoop
Reiner Bruns
Fleet Helm Stephens
Herbert Stutz
Application Number:
JP2007320396A
Publication Date:
December 11, 2013
Filing Date:
December 12, 2007
Export Citation:
Assignee:
Bayer MaterialScience AG
International Classes:
C07C263/10; C07C263/20; C07C265/14
Domestic Patent References:
| JP2004123745A | ||||
| JP6041046A | ||||
| JP2005510558A | ||||
| JP2008503532A | ||||
| JP63280050A |
Attorney, Agent or Firm:
Toshio Yano
Takuya Kuno
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard
Takuya Kuno
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard