Title:
ポリイソシアナートの製造方法
Document Type and Number:
Japanese Patent JP4554595
Kind Code:
B2
Abstract:
Production of polyisocyanates comprises mixing an amine with phosgene, reacting the amine with the phosgene in a tubular reactor, and passing the reactor effluent to a distillation column. Independent claims are also included for: (1) tubular reactor consisting of one or more horizontal and/or vertical segments connected together by sections whose diameter is smaller than that of the narrowest horizontal or vertical segment; (2) use of the above reactor for carrying out gas-liquid reactions; and (3) use of the above reactor for producing isocyanates by reacting primary amines with phosgene.
Inventors:
Andreas, Brodhagen
Zone, martin
Nefyans, Philip
Streffer, Eckhart
Andreas Werfeld
Ehren Schlager, Stephan
Zone, martin
Nefyans, Philip
Streffer, Eckhart
Andreas Werfeld
Ehren Schlager, Stephan
Application Number:
JP2006504443A
Publication Date:
September 29, 2010
Filing Date:
February 20, 2004
Export Citation:
Assignee:
BASF SE
International Classes:
C07B43/10; B01J19/24; C07C263/10; C07C265/14
Domestic Patent References:
| JP9122481A | ||||
| JP57200346A |
Attorney, Agent or Firm:
Satoshi Eto