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US 2025/0153159 A1Published application
Pet chemical recycling method
AssigneeNan Ya Plastics Corporation
InventorsTe-Chao Liao, Sen-Huang Hsu, Yu-lin Li
Life of this patent
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Abstract
Provided is a PET chemical recycling method. The PET chemical recycling method includes the following: adding a PET chemical recycling ion catalyst material for PET chemical recycling to PET waste and ethylene glycol; heating and stirring to obtain depolymerized and decolorized bis(2-hydroxyethyl)terephthalate (BHET); and filtering and recycling the ion catalyst material for PET chemical recycling. The PET chemical recycling ion catalyst material is a bisalkylimidazole-metal tetrachloride ionic liquid grafted on a porous carrier.
Claims10
A PET chemical recycling method, comprising:
- adding a PET chemical recycling ion catalyst material for PET chemical recycling to PET waste and ethylene glycol, followed by heating and stirring to obtain depolymerized and decolorized bis(2-hydroxyethyl)terephthalate (BHET);
- and
- filtering and recycling the ion catalyst material for PET chemical recycling,
- wherein the PET chemical recycling ion catalyst material is a bisalkylimidazole-metal tetrachloride ionic liquid grafted on a porous carrier.
1 more element
Dependencies are inferred from the claim text.