Mechanical vs feedstock recycling

The distinction between mechanical recycling and feedstock (or chemical) recycling is that mechanical requires physical separation, whereas feedstock recycling converts mixed PE PP PS PVC into basic hydrocarbon building blocks. Thus, mechanical recycling is appropriate for the primary and secondary recycling routes discussed above, through the grinding of plastic products into pellets or flakes. Feedstock recycling technologies, whilst they can handle contaminated and mixed material, are...