Composition and method for preparing the same
AssigneeIndustrial Technology Research Institute
InventorsShin-Liang Kuo, Yu-Lan Tung, Wen-Sheng Chang, Kung-Hsun Huang, Tein-San Lee, Shu-Chuan Huang
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Abstract
A composition and a method for preparing the same are provided. The method for preparing the composition includes providing a polyethylene terephthalate waste. The polyethylene terephthalate waste is subjected to a depolymerization in the presence of a catalyst and an alcoholysis agent to obtain a mixture, wherein an oxidizing atmosphere is continuously introduced into the depolymerization. The mixture is subjected to a solid-liquid separation to obtain a solid. The solid is subjected to a purification to obtain the composition.
Claims12
A method for preparing a composition, comprising:
- providing a polyethylene terephthalate waste;
- subjecting the polyethylene terephthalate waste to a depolymerization in the presence of a catalyst and an alcoholysis agent to obtain a mixture, wherein an oxidizing atmosphere is continuously introduced into the depolymerization, and a ratio of a flow rate of the oxidizing atmosphere to a weight of the polyethylene terephthalate waste and the alcoholysis agent is 100 sccm/Kg to 3,000 sccm/Kg;
- subjecting the mixture to a solid-liquid separation, obtaining a solid;
- and
- subjecting the solid to a purification, obtaining the composition.
Dependencies are inferred from the claim text.