This minimizes the loss of valuables into the plastics and also ensures the quality of the plastic end products at a later stage. The FINDER unit is extremely flexible and, depending on the customer’s target fractions, can be used to distinguish between stainless steel and copper wire, and produce a clean non-metal fraction.
• Targeting valuable plastics – The sorting and recovery of plastics from E-scrap can be done in various ways depending on what fractions are required and the volumes to be processed. Different combinations of sensors can be used to identify and separate different plastics, transforming the material into reusable granules. E-scrap contains hazardous substances or persistent organic pollutants (POPs), such as brominated flame retardants, which must not be reused or recycled. Our X-TRACT technology can be used to remove these materials and our AUTOSORT NIR technology can be used to remove the remaining visible polymers in the <1000ppm brominated content. The non-visible polymers can then be dried and sorted by polymer type using NIR spectroscopy into individual polymer groups for re-sale.
Latest developments in plant design
The typical E-scrap plant design described above is well proven and widely used, but in recent years we have worked with customers to introduce some new and innovative alternative applications of our technology.
For example, we recently installed a COMBISENSE™ unit which uses a visual spectrometer sensor to remove visible copper, such as wire bundles attached to iron or small engines. When incorporated after magnetic separation, this solution makes the ferrous fraction much cleaner and far more likely to pass visual inspections at the steel mill.