Recycling Routes Compared: Prevention, Mechanical, Chemical, Recovery

European waste law does not treat all recycling as one thing, and it does not treat recycling as the top of the ladder. Directive 2008/98/EC sets a waste hierarchy that runs prevention, preparing for re-use, recycling, other recovery including energy recovery, and finally disposal. Everything below is that hierarchy applied to plastic packaging, with what each route actually delivers.

Prevention and re-use

The cheapest tonne to recycle is the one never made. The packaging regulation attacks this directly: Regulation (EU) 2025/40 sets packaging minimisation and empty space limits, and re-use targets for certain formats. For a materials supplier this is the one part of the hierarchy that is not an opportunity: packaging that is prevented is not packaging that needs an additive.

Re-use also changes the material requirement rather than removing it. A crate that circulates forty times needs durability and stress crack resistance, not recyclability, and that shifts which properties a formulator protects.

Mechanical recycling

The workhorse. Sort, wash, re-melt, pelletize. It keeps the polymer as the polymer, and it shortens the chains a little each time, which is why the performance question exists at all. Essentially all plastic recycled in Europe is recycled this way, and plastic packaging recycling rates ranged from 23.0% to 59.5% across member states in 2023, against a 55% target for 2030.

Chemical recycling

Break the polymer into monomers or feedstock and rebuild. Attractive on paper for streams mechanical lines reject, expensive in practice, small in scale, and still regulatorily unfinished: the acts that decide how chemically recycled content counts toward the European minimums are due at the end of 2026 and not yet adopted.

Energy recovery and disposal

Burning plastic with energy capture sits below recycling in the hierarchy, and landfill below that. Both remain substantial destinations for mixed and contaminated plastic waste. The reason matters for the investment case: material that cannot be processed to a usable quality does not simply wait for a better market, it leaves the loop permanently. Anything that widens the range of feedstock a converter can actually run moves tonnes up one level of the hierarchy.

Which route creates demand for additives

Only mechanical recycling. Chemical recycling rebuilds the polymer and therefore has nothing to repair; energy recovery destroys it; prevention avoids it. That single observation is the frame for reading announcements in this sector, and it is why we treat chemical recycling capacity news as a separate story from the additive market rather than as part of it.

Food contact cuts across all of it

Whichever route produced the material, plastic that touches food has to satisfy Regulation (EU) 2022/1616: a suitable recycling technology from its Annex I or a novel technology under its Chapter IV, with the individual process authorised where relevant. That is an independent gate, and passing it says nothing about whether the material performs.

Sources

• Directive 2008/98/EC on waste, for the hierarchy.
• Regulation (EU) 2025/40, for minimisation, re-use and recycled content.
• Commission Regulation (EU) 2022/1616, for recycled plastic in food contact.
• Eurostat, packaging waste statistics, 2023 data.
• European Commission, PPWR implementation timeline.