Description
1. Product Overview
Precious Metal Ash is a high-value industrial byproduct recovered from advanced refining and smelting operations, containing concentrated residues of gold, silver, platinum group metals, and other trace elements. Its primary industrial use is as a secondary feedstock for precious metal recovery, catalysts manufacturing, and specialty alloy production. The key value proposition lies in its certified assay profile, consistent supply chain traceability, and significant cost advantage over virgin ore extraction. Strategically, it enables circular economy sourcing, reduces dependency on primary mining, and delivers measurable ESG impact for global manufacturers seeking secure, auditable precious metal inputs.
2. Key Specifications & Technical Characteristics
- Chemical Composition: Au 0.5–3.2%, Ag 8.0–15.5%, Pt 0.1–0.8%, Pd 0.2–1.1%, Cu 5.0–12.0%, Zn 3.0–7.0%, SiO₂/Al₂O₃ matrix 40–60%, with trace Fe, Ni, Pb <1.5% total. Assay certificate provided per lot.
- Purity Level / Grade: Industrial Recovery Grade; precious metal content verified by ICP-OES and fire assay. Non-hazardous classification under Basel Convention Annex IX.
- Physical Characteristics:
- Form: Fine granular powder
- Color: Dark grey to black
- Particle Size: D50 45–150 microns, <5% +300 microns
- Bulk Density: 1.8–2.3 g/cm³
- Moisture Content: ≤3.0% w/w at time of packing
- Packaging Options: 1 MT jumbo bags with PE liner, 25 kg moisture-proof woven bags on pallets, or bulk vessel shipment. UN-rated packaging available on request.
- Shelf Life: Indefinite when stored in dry, sealed conditions. No degradation of metallic content over time.
3. Core Industrial Applications
- Primary Industries: Precious metal refiners, chemical catalyst producers, electronics recycling, specialty metallurgy, and plating operations.
- Specific Operational Use Cases: Feed material for pyrometallurgical and hydrometallurgical recovery circuits, precursor for automotive and petrochemical catalysts, alloying additive for high-performance contacts and solders, and input for urban mining processes.
- Performance vs. Alternatives: Delivers 18–35% lower input cost per gram of recovered precious metal compared to primary concentrates. Pre-processed nature reduces energy consumption in smelting by up to 22% versus raw ore.
- Efficiency, Durability, or Cost Advantages: Consistent particle size improves leaching kinetics and recovery yields. Auditable chain of custody reduces compliance risk. Bulk availability stabilizes procurement budgets against spot market volatility.
4. Competitive Advantages
- Quality Consistency: Every lot is sampled, assayed, and certified to ISO 17025 standards with <2% variance in precious metal content across shipments.
- Supply Reliability: Contracted offtake from 6 Tier-1 smelters ensures 500–800 MT monthly availability with 12-month forward scheduling.
- Logistics Capability: FOB/CIF global ports with hazardous goods certification, containerized and break-bulk options, and dedicated dangerous goods documentation team.
- Price Competitiveness: Indexed to LBMA pricing minus processing discount, offering 15–28% savings vs. virgin material on a metal-equivalent basis.
- Sustainability or Environmental Benefits: Diverts Class II industrial waste from landfill, reduces CO₂e by 6.2 MT per MT of ash processed vs. primary mining, with full ESG and LCA documentation.
- Technical Support or Documentation Availability: Includes SDS, TDS, customs HS code advisory, assay certificates, radioactivity clearance, and end-use compliance statements. On-call metallurgical support for recovery optimization.
5. Commercial & Supply Information
- Minimum Order Quantity (MOQ): BULK 20MT
- Loading Capacity: 24 MT per 20ft container






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