Recycling of polyethylene terephthalate wastes under the action of a gaseous nitrating mixtureстатья
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Дата последнего поиска статьи во внешних источниках: 17 июля 2020 г.
Аннотация:A new method for recycling of polyethylene terephthalate (PET) wastes, which is based on their processing under the action of a nitrating atmosphere and a subsequent utilization of the conversion products, is considered. It is shown that the exposure of PET samples to an NOx-H2O (steam)-air atmosphere obtained by vaporization of 12 M HNO3 at 403-463 K for 5-24 h, dissolution of the conversion products in 0.5 M NaOH, and their subsequent ozonation makes it possible to effectively utilize waste PET bottles regardless of the color of the plastic.