FIELD: chemistry.
SUBSTANCE: method is described for processing polyethyleneterephthalate (PET) wastes, involving thermal treatment of the wastes in a sealed volume in a medium of a mixture of vapours released from the PET wastes during thermal treatment and atmospheric air in the volume, under the condition that 160°C ≤ t < 200°C and excess pressure of vapour and air is equal to 1.5-4.5 kgf/cm2, for 20-40 hours.
EFFECT: proposed method enables to obtain a powder product with particle size of 5-50 mcm, having high solubility in an alkaline solution and low degree of thermal decomposition.
1 cl, 1 tbl, 10 ex
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