PET chemical recycling is a process of decomposing waste PET materials into their original chemical components, such as terephthalic acid and ethylene glycol, through a series of chemical reactions. These basic raw materials can be reused to manufacture new PET products, achieving a magnificent transformation from "waste plastics" to "new raw materials".
Unveiling the Principle of PET Chemical Recycling
Alcoholysis: Using alcohol substances to react with PET under specific conditions, breaking the ester bonds in the molecular chain and generating dimethyl terephthalate and ethylene glycol.
Hydrolysis: With the help of water, PET is depolymerized into small molecules in acidic, alkaline, or neutral environments, followed by separation and purification.
Amine hydrolysis and ammonolysis: Amines or ammonia react with PET to change the molecular structure and decompose into recyclable components.
Glycolysis: Under the action of a catalyst, PET reacts with sugar to achieve depolymerization and obtain useful products.
Environmental benefits: Reducing the pollution of soil, water bodies, and oceans caused by PET waste, and lowering the pressure of landfill and incineration.
Resource cycle: It realizes the closed-loop utilization of resources, reduces dependence on native petrochemical resources, and conforms to the concept of sustainable development.
High product quality: The chemically recycled raw materials can be used to produce high-quality PET products with performance comparable to the original materials.
Advantages of PET chemical recycling
Environmental benefits: Reducing the pollution of soil, water bodies, and oceans caused by PET waste, and lowering the pressure of landfill and incineration.
Resource cycle: It realizes the closed-loop utilization of resources, reduces dependence on native petrochemical resources, and conforms to the concept of sustainable development.
High product quality: The chemically recycled raw materials can be used to produce high-quality PET products with performance comparable to the original materials.
Zhaojiadian Village, Jiaoxi Sub District Office, Jiaozhou City, Qingdao City, Shandong Province ,China
