公开(公告)号：EP1142945A2

公开(公告)日：2001-10-10

申请号：EP01107988.6

申请日：2001-03-29

申请人： Takeda Chemical Industries, Ltd.

发明人： Murayama, Koichi, Takeda Chemical Industries, Ltd. ,  Kodama, Katsuhisa ,  Kumaki, Takashi, Takeda Chemical Industries, Ltd.

IPC分类号： C08J11/28

CPC分类号： C08J11/28 ,  C08J2375/04 ,  Y02W30/706

摘要： A method of recovering a decomposition product from a polyurethane, the method comprising the steps of thermally decomposing a polyurethane into a liquid containing a polyol and a urea compound which is soluble in the polyol, and solids containing a urea compound which is insoluble in the liquid in the presence of a polyamine compound at a temperature of 120 to 250°C; removing the solids; hydrolyzing the residue with water retained at a high temperature of 200 to 320°C and a high pressure; and recovering the resulting polyamine and/or polyol.

摘要翻译： 一种从聚氨酯中回收分解产物的方法，该方法包括以下步骤：将聚氨酯热分解成含有可溶于多元醇的多元醇和脲化合物的液体，以及含有不溶于液体的尿素化合物的固体 在多胺化合物存在下，在120〜250℃的温度下， 去除固体; 用保持在200〜320℃的高温和高压的水进行水解; 并回收得到的多胺和/或多元醇。