公开(公告)号：US12221516B2

公开(公告)日：2025-02-11

申请号：US17563510

申请日：2021-12-28

Applicant: Industrial Technology Research Institute

Inventor： Chien-Wei Hsu ,  Ssu-Ting Lin ,  Ying-Chieh Lee

IPC: C08J11/16 ,  B01J6/00 ,  B01J21/08 ,  B01J21/18 ,  B01J23/06 ,  C08G63/00

Abstract: A method for degrading polyethylene terephthalate is provided. The method includes: providing polyethylene terephthalate material, providing a catalyst composite including a porous carrier having a pore size of 45 Å to 250 Å and a metal compound including at least one selected from a group consisting of zinc oxide, zinc hydroxide, zinc carbonate, magnesium oxide, calcium oxide, zirconium oxide, and titanium dioxide, in which the metal oxide is loaded on the porous carrier; and performing a degradation reaction, in which the polyethylene terephthalate material is reacted with the catalyst composite in the presence of an alcohol solvent.

公开(公告)号：US20230055556A1

公开(公告)日：2023-02-23

申请号：US17563510

申请日：2021-12-28

Applicant: Industrial Technology Research Institute

Inventor： Chien-Wei Hsu ,  Ssu-Ting Lin ,  Ying-Chieh Lee

IPC: C08J11/16 ,  B01J21/18 ,  B01J6/00 ,  B01J23/06 ,  B01J21/08

Abstract: A method for degrading polyethylene terephthalate is provided. The method includes: providing polyethylene terephthalate material, providing a catalyst composite including a porous carrier having a pore size of 45 Å to 250 Å and a metal compound including at least one selected from a group consisting of zinc oxide, zinc hydroxide, zinc carbonate, magnesium oxide, calcium oxide, zirconium oxide, and titanium dioxide, in which the metal oxide is loaded on the porous carrier; and performing a degradation reaction, in which the polyethylene terephthalate material is reacted with the catalyst composite in the presence of an alcohol solvent.