Subscribe to our monthly newsletter.

Share this item

It is difficult to separate PVC from PET. Floating-sinking separation of PET flakes in conventional separation equipment does not work due to the difference between the densities being too small. Flotation processes are also not suitable. Separation of entire bottles with the aid of NIR technologies or manual sorting often do not work one hundred percent.

The EKS-PET electrostatic separator used by hamos separates practically all of the PVC from shredded, washed and dried PET flakes and produces a clean PET fraction. The mixture of PET and PVC contamination becomes charged in a tribo-electrical manner. Here, the PET particles take on a positive charge and the PVC particles a negative one. After charging, the PVC particles are separated electrostatically from the PET fraction in a high voltage field. Due to the practically complete separation of PVC contamination, the EKS-PET electrostatic separator enables very high PET purity. The PET flakes produced can be used, for example, for production of new PET bottles, high-grade fibres or films. Furthermore, the EKS-PET separator can be used extremely flexibly. Many additional mixtures of plastics can be separated with the same equipment, for example HDPE/PP, PS/ABS, PVC/PE, PVC/rubber and others. The efficient separation process guarantees fast amortisation, large throughput - depending on the size of the equipment, from 750 kg/h up to 3000 kg/h - and high purity.