Title:
イソシアネートの製造方法
Document Type and Number:
Japanese Patent JP5771528
Kind Code:
B2
Abstract:
The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase, if appropriate in the presence of an inert medium, in which the amine and the phosgene are first mixed and converted to the isocyanate in a reactor, by cooling a reaction gas which comprises isocyanate and hydrogen chloride and leaves the reactor in a quench by adding a liquid quench medium to obtain a mixture of reaction gas and quench medium. The amount of quench medium added is such that the temperature of the mixture of reaction gas and quench medium which is established in the quench is above the dew point of the gas present in the quench.
Inventors:
Matke, Torsten
Knesse, Karsten
Knesse, Karsten
Application Number:
JP2011535103A
Publication Date:
September 02, 2015
Filing Date:
November 04, 2009
Export Citation:
Assignee:
BASF SE
International Classes:
C07C263/10; C07C263/18; C07C265/14
Domestic Patent References:
| JP2008150372A | ||||
| JP2008174549A | ||||
| JP2004123745A | ||||
| JP2007039459A | ||||
| JP2010508374A | ||||
| JP2008503532A | ||||
| JP2012505850A |
Foreign References:
| WO2008055899A1 | ||||
| WO2008055904A1 | ||||
| US4076577 |
Other References:
吉村壽次,化学辞典(第2版)小型版,森北出版株式会社,2012年11月15日,186,189,419,976頁,「塩化カルボニル」,「塩化水素」,「クロロベンゼン」,「2,4-トリレンジイソシアナート」の項
Attorney, Agent or Firm:
Satoshi Eto