超臨界水中での廃棄物のケミカルリサイクル

抄録

A new recycling process for wastes using supercritical water has been developed. The monomers obtained from supercritical water hydrolysis are the raw material of condensation polymers such as poly(ethylene telephthalate), polyurethane and so on. This process was applied to TDI (Tolylene Diisocyanate) distillation residue. By the process with super- or sub-critical water, TDA can be obtained from the residue comprising TDI oligomers. The plant for the commercial use of the chemical recycling process for TDI residue using supercritical water was constructed at the end of 1997, and is now functioning as an environmentally friendly plant.