Title:
ホスゲン化反応器からの反応排出液の後処理
Document Type and Number:
Japanese Patent JP4212556
Kind Code:
B2
Abstract:
Isocyanates are prepared by reacting primary amines with phosgene in a reactor by a process in which a reaction discharge is present in the form of a suspension which contains the isocyanate to be prepared, as a liquid, and carbamyl chlorides as a solid, and the suspension is worked up in a film evaporator, and this process is carried out in a production plant.
Inventors:
Streffer, Eckhart
Scholl, Stephan
Zone, martin
Andreas Werfeld
Palash, Hens-Jurgen
Bredeheft, Jan, Peter
Scholl, Stephan
Zone, martin
Andreas Werfeld
Palash, Hens-Jurgen
Bredeheft, Jan, Peter
Application Number:
JP2004540644A
Publication Date:
January 21, 2009
Filing Date:
September 18, 2003
Export Citation:
Assignee:
BASF SE
International Classes:
C07C263/10; B01D1/06; C07C263/20; C07C265/14; B01D1/22; B01D3/00
Domestic Patent References:
| JP49134660A | ||||
| JP54000906B1 |
Attorney, Agent or Firm:
Satoshi Eto
Previous Patent: JPS4212555
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