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Method for recycling polyolefin containing waste

Verfahren zur Wiederverwertung von polyolefinhaltigem Abfallmaterial
 
: Berrang, Arthur; Fell, Tanja; Knappich, Fabian; Leizinger, Renate; Mäurer, Andreas; Schlummer, Martin

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Frontpage ()

EP 3305839 A1: 20161010
English
Patent, Electronic Publication
Fraunhofer IVV ()

Abstract
The invention refers to a method for recycling polyolefin containing waste by using a solvent with a specific Hansen parameter and contacting this mixture with a liquid filtration aid before separating the polyolefin from the mixture. The method comprises the following steps: ¢ Mixing the polyolefin containing waste with a solvent having a Hansen parameter ́ H from 0.0 to 3.0 MPa 1/2 ; ¢ Contacting this mixture with a liquid filtration aid having a Hansen parameter ́ H > 4.0 MPa 1/2 ; and ¢ Separating the polyolefin from the mixture.

: http://publica.fraunhofer.de/documents/N-530752.html