METHOD FOR TREATMENT OF ISOCYANATE RESIDUE, AND METHOD FOR TREATMENT OF CARBONATE

Title:

METHOD FOR TREATMENT OF ISOCYANATE RESIDUE, AND METHOD FOR TREATMENT OF CARBONATE

Document Type and Number:

WIPO Patent Application WO/2011/078000

Kind Code:

A1

Abstract:

A method for treating an isocyanate residue, which comprises carrying out a thermal decomposition reaction of a carbamate that is produced by the reaction among an amine, urea and/or an N-unsubstituted carbamic acid ester and an alcohol to produce a decomposition solution, separating an isocyanate and the alcohol from the decomposition solution to produce the isocyanate residue, and bringing the isocyanate residue into contact with high-pressure/high-temperature water to decompose the isocyanate residue into an amine; and a method for treating a carbonate, which comprises bringing the carbonate into contact with high-pressure/high-temperature water to decompose the carbonate into an alcohol.

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Inventors:

SHIMOKAWATOKO YOSHIKI (JP)
MURAYAMA KOICHI (JP)
TAKEUCHI HIROSHI (JP)
KANNO TAKASHI (JP)
SASAKI MASAAKI (JP)
OKUBO KAZUHIKO (JP)

Application Number:

PCT/JP2010/072431

Publication Date:

June 30, 2011

Filing Date:

December 14, 2010

Export Citation:

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Assignee:

MITSUI CHEMICALS INC (JP)
SHIMOKAWATOKO YOSHIKI (JP)
MURAYAMA KOICHI (JP)
TAKEUCHI HIROSHI (JP)
KANNO TAKASHI (JP)
SASAKI MASAAKI (JP)
OKUBO KAZUHIKO (JP)

International Classes:

C07C209/62; C07C29/09; C07C31/12; C07C211/50; C07C263/04; C07C265/14; C07C269/04; C07C271/28

Foreign References:

JPH10279539A	1998-10-20
JPH09151270A	1997-06-10
JPH0625136A	1994-02-01
JP2005320334A	2005-11-17
JP2008195646A	2008-08-28

Other References: