Dechlorination of Plastic Materials Using Superheat in Water

The method of superheating an aqueous plastic mixture at a pH of at most 4 effectively removes chlorine from plastics, producing a dechlorinated plastic with low oxygen content and a hydrogen chloride solution of commercial value, addressing the challenges of existing recycling methods.

JP2025516032APending Publication Date: 2025-05-26NEDERLANDSE ORG VOOR TOEGEPAST NATUURWETENSCHAPPELIJK ONDERZOEK TNO
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Patent Information

Application Number
JP2024563685
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-05-24
Filing Date
2023-05-01
Publication Date
2025-05-26

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Abstract

The present invention pertains to the field of recycled plastic materials. In particular, the present invention is directed to a method for dechlorinating chlorine-containing polymers contained in plastic materials using superheating. The present invention is further directed to the dechlorinated polymers obtained by this method. This method is carried out in water, and the pH during the method is at most 4.
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