Pellenc – Fine Sort (High speed sorting of plastic flakes)
Once the layers of different materials are separated from each other, a method is required to sort the different material flakes eg PE, PET, alufoil etc. from each other. To be valuable as a secondary material, the resulting sorted streams needs to be as “pure” as possible and, ideally, sorted into fractions with similar properties.
Pellenc ST have been sorting plastics and other materials for since 2001 with over 1000 of their “sorters” being deployed globally; many in MSW sorting centers. Most recently Pellenc ST have developed the “Fine Sort” platform which targets streams where the flakes are between 4mm – 20mm in size. “Fine Sort” has a capacity of up to 200 kg per hour depending on the material and can differentiate on colour and/or material simultaneously. The basis of the technology is NIR and VIS with accuracies of up to 95% being possible.
For more information please download this link or visit www.pellencst.com.
Saperatec – Separating the layers
Saperatec has pioneered a proven method by which to separate the individual materials in a multi-material flexible packaging material.
For more information please follow this link or contact Saperatec directly at www.saperatec.de.
Urban Mining Corp – Sorting the separated layers
Once the layers of different materials are separated from each other, a method is required to sort the different material flakes eg PE, PET, alufoil etc. from each other. To be valuable as a secondary material, the resulting sorted streams need to be as “pure” as possible and, ideally, sorted into fractions with similar properties eg density, melt flow rate etc.
The Urban Mining Corporation has commercialized a technology called Magnetic Density Separation that has demonstrated the potential to sort these mixed flakes into “pure” streams of single polymer flakes from the shredded rigid mixed plastic flakes. Research is currently underway to see if this can be applied to much smaller flakes such as might be expected from a process like the Saperatec one.
For more information please download this link or visit www.umincorp.com.