METHOD FOR TREATMENT OF ISOCYANATE RESIDUE, AND METHOD FOR TREATMENT OF CARBONATE
申请人:Mitsui Chemicals, Inc.
公开号:EP2518044A1
公开(公告)日:2012-10-31
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.
一种处理异氰酸酯残留物的方法,包括对氨基甲酸酯进行热分解反应,该氨基甲酸酯是由胺、尿素和/或 N-未取代氨基甲酸酯与醇反应生成的,从分解溶液中分离出异氰酸酯和醇,生成异氰酸酯残留物,将异氰酸酯残留物与高压/高温水接触,将异氰酸酯残留物分解成胺;一种处理碳酸盐的方法,包括使碳酸盐与高压/高温水接触,将碳酸盐分解成醇。