Description
1. Product Overview
Spent Platinum Slag is a secondary industrial material recovered from platinum group metal (PGM) smelting, refining, and catalytic converter recycling processes. Its primary industrial use is as a feedstock for further precious metal recovery, refractory material production, and specialized metallurgical applications. The key value proposition lies in its residual platinum content and high-temperature stability, offering a cost-effective alternative to virgin PGMs for downstream processors. In the global market, it is strategically important due to tightening primary PGM supply, rising demand in green hydrogen and electronics, and the growing emphasis on circular economy sourcing.
2. Key Specifications & Technical Characteristics
- Chemical Composition / Material Components:
- SiO₂: 35–45%
- Al₂O₃: 15–25%
- FeO + Fe₂O₃: 10–20%
- CaO: 5–12%
- MgO: 2–8%
- Residual PGM Content: 20–150 g/MT (assayed, varies by batch)
- Purity Level / Grade: Industrial-grade secondary slag; PGM content certified by third-party fire assay
- Physical Characteristics:
- Form: Granulated / crushed slag
- Color: Dark grey to black, metallic inclusions
- Particle Size: 0–5 mm, 0–10 mm, or 10–30 mm as required
- Bulk Density: 1.8–2.4 g/cm³
- Moisture Content: <2% w/w
- Packaging Options: 1 MT jumbo bags with PE liner, bulk breakbulk shipment, or containerized bulk
- Shelf Life: Indefinite when stored in dry, covered conditions; non-reactive under standard storage
3. Core Industrial Applications
- Primary Industries: Precious metal refining, specialty alloy manufacturing, refractory producers, catalyst recycling, and cement/blast furnace additives
- Specific Operational Use Cases:
- Feedstock for hydrometallurgical and pyrometallurgical PGM recovery circuits
- Aggregate in high-temperature refractory formulations due to thermal stability >1600°C
- Fluxing agent in non-ferrous smelting to improve slag fluidity and metal recovery
- Performance Advantages: Delivers recoverable PGM value at 30–60% lower input cost vs. primary concentrate. High silica-alumina matrix provides superior slag conditioning in smelters, reducing flux consumption. Consistent granulation improves leach kinetics and furnace charging efficiency compared to irregular furnace slags.
4. Competitive Advantages
- Quality Consistency: Each lot is sampled, homogenized, and assayed with XRF and fire assay certificates; CoA provided per shipment
- Supply Reliability: Access to 500+ MT monthly from audited recycling and smelter partners across EU, Africa, and APAC
- Logistics Capability: Experienced in containerized, breakbulk, and ISO tank export with Incoterms FOB, CIF, DAP; hazardous goods documentation available
- Price Competitiveness: Priced on contained PGM basis with discounts to LBMA spot; enables buyers to hedge input costs vs. primary PGM volatility
- Sustainability Benefits: 100% recycled content supports Scope 3 emissions reduction, EUDR compliance, and circular economy KPIs; reduces mining footprint
- Technical Support / Documentation: Full SDS, TDS, assay certificates, radioactivity clearance, and metallurgical test data provided; toll-processing referrals available
5. Commercial & Supply Information
- Minimum Order Quantity (MOQ): BULK 20MT
- Loading Capacity: 25–27 MT per 20ft container depending on particle size and moisture






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