Are spent catalysts always hazardous?

Not always. Spent precious metal catalysts (16 08 01) are non-hazardous. Catalysts containing heavy metals, sulfides, or pyrophoric materials (16 08 07*) are hazardous and require manifested handling.

How is PGM value determined at handover?

PGM-bearing catalysts are assayed by the receiver. The contract typically specifies a sampling method (ASTM E2863 or equivalent), assay method, and settlement terms based on LME fix prices at the time of refining.

Can spent halogenated solvents be reclaimed?

Yes — halogenated solvents (07 01 03*) can be re-distilled to recoverable quality. Grade and economics depend on contamination level. SymbioFlows will assess your stream against current re-distiller acceptance specs.

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Name: SymbioFlows Platform
Availability: InStock
Author: SymbioFlows

Gebrauchte Katalysatoren enthalten Platin, Palladium und Rhodium im Wert von Tausenden Euro pro Kilogramm. SymbioFlows verbindet Chemieproduzenten mit Raffinerien, die für das zahlen, was andere entsorgen.

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0.3–3 %

PGM content of spent hydrotreating catalysts

src: Johnson Matthey data

~55%

EU spent solvent recovery rate

src: Eurostat 2022

95%+

Catalyst precious metal refining yield

src: BASF Catalysts

20–30 MJ/kg

Distillation residue fuel value

src: industry avg

Wichtige Abfallströme — AVV-Codes und Abnehmer

AVV-Code	Material	Beschreibung	Wer es kauft
16 08 07*	Hazardous Spent Catalysts	Spent hydrotreating, reforming, and process catalysts with PGM or heavy metal content.	Precious metal refiners, catalyst regenerators
16 08 01	Spent Precious Metal Catalysts	Pt, Pd, Rh-bearing catalysts — high recovery value.	PGM refiners (Umicore, Johnson Matthey)
07 01 03*	Halogenated Spent Solvents	Chlorinated solvents from extraction and cleaning processes.	Solvent re-distillers, cement kiln co-processing
07 01 04*	Non-halogenated Spent Solvents	Acetone, toluene, alcohols from synthesis operations.	Solvent recovery distillers, fuel blenders
07 01 08*	Distillation Bottoms & Tars	Heavy organic residues from distillation columns.	Cement kilns, gasification, waste-to-energy
06 02 05*	Other Bases (hazardous)	Spent caustic and alkaline process liquors.	Neutralisation, pH-adjustment facilities

* gefährlich gemäß EU-Abfallrahmenrichtlinie 2008/98/EG

Branchen, die Chemical Processing-Abfälle kaufen

Precious Metal Refining

PGM recovery from spent catalysts — net credit after refining charges

Cement Production

Solvent-bearing wastes as alternative fuels — calorific substitution

Electronics

High-purity chemical streams for electronics-grade chemical production

Pharmaceutical

Solvent recovery for pharmaceutical-grade re-use

Häufig gestellte Fragen

Wo Sie Materialien beziehen und mehr erfahren

Abfallstrom-Seiten und Ressourcen zu Chemical Processing.

Food SludgeHigh-fat DAF sludge as premium AD co-substrate (300–500 m3/t VS biogas yield)Spent SolventsSolvent re-distillers recover and resell 70–90% of feed as industrial-grade solvent Pharma WasteSolvent recovery from pharma production streams TyresELT as feedstock for pyrolysis oil and recovered carbon black (rCB)Organic Food WasteHigh-sugar and high-fat organic streams command premium tipping credits at AD plants Printing InkSolvent-based ink waste as alternative fuel or solvent recovery feedstock Used OilRe-refined base oil as industrial lubricant base stock Paint/Varnish WasteSolvent-based coatings waste for solvent recovery distillation Slaughterhouse ByproductsAnimal fat (tallow) as biodiesel/HVO feedstock Dairy WheyHigh-lactose whey as AD co-substrate or ethanol fermentation feedstock Brewery Spent GrainBSG and pot ale as anaerobic digestion feedstock Benefits of Industrial SymbiosisWhy turning waste streams into off-taker matches creates measurable economic and environmental value How AI Matching Technology WorksHow SymbioFlows pairs waste producers with verified off-takers at scale Circular Economy GuideA practical introduction to closing material loops between industries

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