FIELD: processing waste from polyethylene terephthalate (PET).
SUBSTANCE: method for processing materials comprising polyethylene terephthalate (PET) includes grinding materials comprising polyethylene terephthalate and mixing them with an alkaline component, adding the resulting mixture to an aqueous solution comprising alcohol and a photocatalyst, keeping the resulting mixture at atmospheric pressure, stirring and irradiating with ultraviolet light for 3-7 h, followed by dilution of the resulting mixture with distilled water, filtration, acidification until a white precipitate of terephthalic acid is formed, which is separated by filtration, washed and dried, whereas the method is carried out at room temperature.
EFFECT: creating a high-performance method for processing PET in a high viscosity medium and reducing the cost of its processing due to the process being carried out at room temperature and pressure.
1 cl, 4 dwg, 5 tbl, 5 ex
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