Method for reclaiming bonded, two-resin articles

作者: Thomas R. Tomaszek

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摘要: A method and apparatus for reclaiming reusable resin materials from bottles other scrap articles each comprising a first low density component (e.g., polyethylene) bonded to second high polyethylene terephthalate); the are granulated form primary particulate that is air classified remove paper film labels, then flotation separated into lightweight (PE) material dried re-use, secondary scrap. The vigorously washed in hot aqueous medium disrupt bonds chips containing both resins, thoroughly rinsed again heavy cleaned re-use; there also residual stage returned stage. separation stages include auger an apertured-bottom trough positioned near top of tank with inlet means depositing liquid one end trough; output afforded by bottom tank, whereas outlet overflow weir at side tank.