Method for decomposing and recycling polyurethane rigid foam solid waste

According to the method for decomposing and recycling the rigid polyurethane foam solid waste, an alcoholysis method is used as a basic principle, regenerated polyol with high purity can be obtained through specific process steps and parameter design, the process route of the method is reliable and perfect, and the method is suitable for industrial production. And the obtained regenerated polyol and polyamine can be directly used for reproduction of polyurethane foam, and are suitable for industrial recovery of rigid polyurethane foam solid waste. 本发明提出一种分解回收聚氨酯硬质泡沫固体废弃物的方法，其以醇解法为基本原理，通过特定的工艺步骤和参数设计，可以获得纯度较高的再生多元醇，本方法工艺路线可靠、完善，而且得到的再生多元醇和多元胺可直接用于聚氨酯泡沫的再生产，适用于聚氨酯硬质泡沫固体废弃物的工业化回收。