Verfahren zur Wiederverwertung von Kunststoffmaterialien nach dem Verbrauch

Details

Veröffentlichungs-Nr.

EP4378554

Aktenzeichen

EP22211261

Anmeldetag

2. Dezember 2022

Veröffentlichung

5. Juni 2024

Rechtsraum

EP

IPC

B01D11/02C08J11/08

Abstract

A process for the recycling of a vinyl chloride polymer material which comprises an initial level of one or more additive compounds comprises providing an aqueous acid composition comprising one or more alcohols and one or more acids, contacting the vinyl chloride polymer material and a volume of the acid composition to cause extraction of the one or more additive compounds from the vinyl chloride polymer material, wherein the acid composition forms a two-phase system with the vinyl chloride polymer material, comprising a solid phase comprising a purified vinyl chloride polymer material and a liquid phase comprising the alcohol, the water, the acid and the extracted one or more additive compounds, and separating the solid phase comprising the purified vinyl chloride polymer material and the liquid phase comprising the extracted one or more additive compounds.

Anmelder

Firma

VITO NV

Land

🇧🇪 Belgien

Fachgebiete