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EnvalyxPrecision upcycling

06Separation-first evaluation

PE/PP-rich streams

Rigid packaging, films, and PE/PP-rich mixed fractions.

Discuss a polyolefin stream
PE and PP film offcuts, moulding sprues, trays, and regrind

Access constraints

What governs whether the target is reachable in this feedstock.

  • Saturated C–C backbone
  • Mixed resin fractions
  • Contamination

PE and PP have saturated carbon–carbon backbones with no conventional hydrolysable functional group in the main chain.

Reaction scheme

Separate + characterise.

Polyethylene and polypropylene constitutional repeat units with saturated carbon-carbon backbones and no hydrolysable main-chain group, separated and characterised into PE and PP fractions whose backbones remain unchanged.

01PE and PP repeat units

PEnPPntacticity not shownsaturated carbon–carbon backboneno hydrolysable group in the main chain
Separation + analysisNo chain cleavage

02Separated fractions

PE fractionPP fractionbackbones unchangedreported as yield · composition · puritymain-chain cleavage not claimed

Supported endpoint

Defined PE/PP fraction

Next step

Bring this material to a defined question

Tell us which decision the evaluation needs to support.

Discuss a polyolefin streamDiscuss technical scope