Description
1. Product Overview
Iridium Residue is a high-value industrial by-product recovered from platinum group metal refining and catalyst recycling streams. Its primary industrial use is as a feedstock for iridium metal recovery, advanced alloying, and specialty chemical synthesis in sectors requiring extreme corrosion resistance and high-temperature stability. The key value proposition lies in its concentrated iridium content, enabling refiners and manufacturers to secure a cost-effective, traceable source of one of the rarest and most critical PGMs. It is strategically important in the market due to global supply constraints, rising demand in hydrogen electrolyzers, crucibles, and electronics, and the growing emphasis on circular sourcing of critical metals.
2. Key Specifications & Technical Characteristics
- Chemical Composition / Material Components: Predominantly Iridium (Ir) with residual Platinum (Pt), Ruthenium (Ru), Osmium (Os), Rhodium (Rh); base metals including Fe, Ni, Cu, SiO₂, Al₂O₃ as minor constituents
- Purity Level / Grade: Ir content typically 15% – 60% on dry basis; assayed per lot with certified ICP-OES/XRF analysis
- Physical Characteristics:
- Form: Fine powder, sludge, or calcined granules depending on processing stage
- Color: Dark grey to black
- Particle Size: D50 20µm – 150µm, customizable upon request
- Density: 3.5 – 6.8 g/cm³ bulk density, dependent on moisture and form
- Packaging Options: 25kg UN-rated steel drums with inner PE liner; 500kg – 1MT FIBC jumbo bags; vacuum-sealed options for high-grade material
- Shelf Life: Indefinite when stored in dry, sealed conditions; hygroscopic grades should be protected from moisture
3. Core Industrial Applications
- Primary Industries: PGM refining, chemical catalyst manufacturing, electrochemical/hydrogen technologies, specialty glass & crystal growth, aerospace, electronics, and medical device manufacturing
- Specific Operational Use Cases: Feed for iridium sponge/metal recovery; alloying agent for Ir-Pt thermocouples and spark plug tips; precursor for iridium oxide catalysts in PEM electrolyzers; crucible fabrication for sapphire and LED crystal growth
- Why This Product Performs Better Than Alternatives: Concentrated Ir content reduces smelting and refining costs vs. low-grade scrap; traceable sourcing from industrial processes ensures lower radioactive and deleterious element risk vs. mined sources
- Efficiency, Durability, or Cost Advantages: Enables refiners to achieve higher furnace recovery rates and shorter processing cycles; provides end-users a hedge against spot Ir price volatility; supports ESG goals through urban mining and secondary supply
4. Competitive Advantages
- Quality Consistency: Lot-by-lot assay with full traceability and Certificate of Analysis; ICP-MS impurity profiling available
- Supply Reliability: Sourced from long-term recycling partnerships with global PGM refineries and catalyst users; consistent monthly volumes available
- Logistics Capability: Experienced in IATA/DGR Class 7 & 6.1 compliant shipments; global freight forwarding with bonded warehouse options in EU, UAE, SG, and US
- Price Competitiveness: Priced at discount to 99.95% Ir metal based on contained Ir and recovery factors; flexible toll-refining or outright purchase structures
- Sustainability / Environmental Benefits: 100% secondary material; reduces carbon footprint by >80% vs. primary mining; complies with OECD Due Diligence Guidance and LBMA Responsible Sourcing
- Technical Support / Documentation: Full SDS, TDS, and radiation safety reports; metallurgical consultation for optimal recovery; toll-refining support and buy-back agreements available
5. Commercial & Supply Information
- Minimum Order Quantity (MOQ): BULK 20MT
- Loading Capacity (MT per container): 20MT per 20ft FCL






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