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Chapter 07 — Wastes from organic chemical processesSub-code of EWC 07 02 Hazardous

EWC Code

07 02 01*

Aqueous washing liquids and mother liquors from plastics manufacture

EUR-Lex Commission Decision 2000/532/EC — Official Journal L 226, 06/09/2000

Annual Volume (EU)

~2–4 Mt/year polymer process waste EU-wide

Valorisation Range

Off-spec polymer €100–400/t for reuse; catalyst residues €50–200/t

Primary Route

Polymer reprocessing and chemical recycling

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EWC 07 02 01* is a specific sub-code under EWC 07 02 — Wastes from manufacture, formulation, supply and use of plastics, synthetic rubber and man-made fibres. The classification guidance below applies to this waste stream.

EWC 07 02 covers wastes from polymerisation, compounding and downstream conversion of plastics, synthetic rubber and man-made fibres. Principal streams include polymerisation reactor washout residues, off-specification polymer, spent polymerisation catalysts, residual monomer streams and filter cake from catalyst removal. Most streams are hazardous when catalyst, solvent or monomer residues are present above threshold concentrations.

Ziegler-Natta catalyst residues (titanium- and magnesium-based, in polyolefin production) are water-reactive and pyrophoric when concentrated — they require controlled quench and deactivation before disposal. PVC production generates vinyl chloride monomer (VCM) residue, classified as a Category 1A carcinogen, in reactor cleaning wastes. Synthetic rubber manufacturing generates styrene, butadiene and acrylonitrile residues in aqueous latex wastes.

In-process polymer waste (sprues, off-spec pellets, gels) is typically reprocessed directly. Contaminated polymer waste is increasingly directed to chemical recycling (pyrolysis, dissolution) rather than energy recovery in line with the EU Plastics Strategy and Packaging Regulation requirements. Man-made fibre manufacture (nylon, polyester, acrylic) generates spin-finish oil waste and fibre flock as the primary non-polymer waste streams.

Typical Generators

Polyolefin (PE, PP) producers
PVC compounders
Synthetic rubber manufacturers (SBR, EPDM)

Disposal & Valorisation Routes

Established valorisation pathways for EWC 07 02 01*, ranked by economic value and market depth.

Polymer reprocessing and chemical recycling

Primary

Clean off-spec polymer regranulated and sold into lower-specification applications or returned to process. Contaminated polymer waste processed through pyrolysis (plastic-to-fuel or plastic-to-monomer) at permitted chemical recycling facilities. Pyrolysis oil assessed for SVHC content before sale.

Catalyst deactivation and metal recovery

Secondary

Ziegler-Natta and chromium-based catalyst residues quenched with isopropanol or water under inert atmosphere. Deactivated catalyst sludge filtered; titanium and magnesium values recovered where economically viable. Residue stabilised and disposed as hazardous waste.

High-temperature incineration

Backstop

VCM-containing PVC wastes, monomer-contaminated filter cake and latex wastes incinerated at permitted hazardous waste facilities with HCl scrubbing (PVC generates HCl on combustion). Minimum combustion temperature 1100°C for chlorinated streams.

These are the established routes for EWC 07 02 01*. Which one your stream qualifies for depends on its composition, volume and region.

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NACE Receiving Industries

Primary & secondary off-takers

01
Manufacture of plastics in primary forms

Generates polymerisation waste; off-spec polymer sold to compounders or lower-grade converters

02
Manufacture of synthetic rubber

Manages latex waste, monomer residues and antioxidant/oil wastes in-house or via specialist contractors

03
Recovery of sorted materials

Chemical recyclers (pyrolysis) accept contaminated polymer waste as feedstock

04
Treatment and disposal of hazardous waste

Handles VCM-contaminated and catalyst-bearing hazardous polymer wastes

Industries That Use This Waste

Sectors that valorise EWC 07 02 01* as an input material or secondary raw material.

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