date:Jun 07, 2012
es are ground and flakes pre-washed, with PET separated from lighter PO lid materials, dried and sorted by colour.
Flakes were then heated up in a decontamination module to what Krones calls the final decontamination temperature, significantly below the melting point of PET (allowing for energy savings versus pellet production processes).
A two-stage process ending in vacuum cleaning to get food-grade flakes was more efficient that standard PET recycling processes, Krones claimed.
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