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Title:
PROCESS AND EQUIPMENT FOR THE DECOMPOSITION AND RECOVERY OF ISOCYANATE COMPOUNDS
Document Type and Number:
WIPO Patent Application WO/2007/007791
Kind Code:
A1
Abstract:
A process for the decomposition and recovery of isocyanate compounds which comprises introducing continuously an isocyanate compound having at least one isocyanate group or at least one group derived from an isocyanate group in a molten or dissolved state into high-temperature water under pressure to disperse the compound in the water, feeding the obtained mixed fluid continuously into a reactor to decompose the compound in the reactor, and recovering raw materials of the isocyanate compound or derivatives thereof; and equipment for the decomposition and recovery of isocyanate compounds which is equipped with a reactor wherein an isocyanate compound having at least one isocyanate group or at least one group derived from an isocyanate group is decomposed by bringing the compound into contact with high-temperature water under pressure, a water feed line for feeding high-temperature water under pressure into the reactor continuously, a compound feed line for feeding an isocyanate compound in a molten or dissolved state into the water feed line, an on-off valve for connecting the compound feed line to the water feed line near the zone in which the water feed line is connected to the reactor, a dewatering apparatus for dewatering the decomposition product discharged from the reactor, and a purifier for purifying the dewatered decomposition product.

Inventors:
KASUYA, Fumihiko (())
糟谷 文彦 (())
YAMAGATA, Masahiro (())
山形 昌弘 (())
Application Number:
JP2006/313870
Publication Date:
January 18, 2007
Filing Date:
July 12, 2006
Export Citation:
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Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO (10-26, Wakinohama-cho 2-chome Chuo-ku, Kobe-sh, Hyogo 85, 6518585, JP)
株式会社神戸製鋼所 (〒85 兵庫県神戸市中央区脇浜町二丁目10番26号 Hyogo, 6518585, JP)
Mitsui Chemicals Polyurethanes, Inc. (5-2 Higashi-Shimbashi 1-chome, Minato-ku Tokyo, 17, 1057117, JP)
三井化学ポリウレタン株式会社 (〒17 東京都港区東新橋一丁目5番2号 Tokyo, 1057117, JP)
KASUYA, Fumihiko (())
糟谷 文彦 (())
International Classes:
C07C209/62; B01F5/00; B01J19/24; C07C211/12; C07C211/18; C07C211/27; C07C211/36; C07C211/46; C07C211/50; C07C211/51; C07C211/58; C07C221/00; C07C225/20; C07C227/04; C07C229/46
Foreign References:
JPH04275269A1992-09-30
JPH10279539A1998-10-20
JP2002173471A2002-06-21
JPH09151270A1997-06-10
Other References:
See also references of EP 1903026A4
Attorney, Agent or Firm:
OGURI, Shohei et al. (Eikoh Patent Office, 7-13 Nishi-Shimbashi 1-chom, Minato-ku Tokyo 03, 1050003, JP)
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