DENSITY SEPARATION OF WASTE PLASTIC

To provide methods and systems for separating mixed plastic waste.SOLUTION: The method generally includes a step of separating mixed plastic waste into a PET-enriched stream and one or more PET-depleted streams. The step of separating can be accomplished by using combinations of two or more density...

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Bibliographische Detailangaben
Hauptverfasser:	JAMES STEWART NELSON, BRUCE ROGER DEBBRUIN, KYLE LYN COLLINGS
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	To provide methods and systems for separating mixed plastic waste.SOLUTION: The method generally includes a step of separating mixed plastic waste into a PET-enriched stream and one or more PET-depleted streams. The step of separating can be accomplished by using combinations of two or more density separation stages. Typical density separation stages include sink-float separators and centrifugal force separators. The PET-enriched and PET-depleted streams can be recovered and/or directed to downstream chemical recycling processes.SELECTED DRAWING: Figure 3 【課題】混合プラスチック廃棄物を分離するための方法およびシステムを提供する。【解決手段】方法は一般に混合プラスチック廃棄物をＰＥＴ富化流および１つまたはそれ以上のＰＥＴ枯渇流に分離するステップを含む。分離するステップは２以上の密度分離段階の組み合わせを使用することにより達成され得る。代表的な密度分離段階は浮沈法分離器および遠心力分離器を含む。ＰＥＴ富化およびＰＥＴ枯渇流は回収され、および／または下流の化学的リサイクルプロセスに向けられ得る。【選択図】図３