Method for recycling waste powder coatings

Method for recycling waste powder coatings through classification, pretreatment, and remelting

This technology is a waste powder coating recycling process that classifies waste powder coatings by compound and color, performs pretreatment through selection and mixing, removes impurities, and then mixes, melts, and extrudes the material with virgin coating to create chips, which are then pulverized and classified.

Waste powder coatings are difficult to reuse directly due to the mixture of various types and colors, making it challenging to obtain recycled coatings of consistent quality.

By standardizing quality through classification based on compounds and colors, as well as mixing with virgin coatings and remelting, this technology can be applied to the production of recycled powder coatings, allowing waste coatings to be repurposed as a resource.

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Key Features:

• Waste powder coating classification step: Categorizing waste powder coatings based on their base compound type and color.
• Primary recycling pretreatment step: Selecting and mixing the classified waste powder coatings into a single group based on their recycling characteristics.
• Secondary recycling pretreatment step: Removing impurities from the pretreated waste powder coatings and mixing them with virgin powder coatings.
• Manufacturing step: Heating, melting, and extruding the secondary pretreated coating to create chips, followed by pulverization and classification to produce recycled powder coating.

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