Zinc Ore Concentrate

Description

1. Product Overview
Zinc Ore Concentrate is a high-density mineral feedstock derived from the beneficiation of zinc-bearing ores, primarily composed of sphalerite (ZnS). It serves as the essential raw material for primary zinc smelters and hydrometallurgical refineries to produce SHG (Special High Grade) zinc metal, galvanizing alloys, and zinc oxide. Strategically critical to global supply chains, this concentrate offers a reliable, high-yield source of zinc units with minimized gangue content, ensuring cost-efficient downstream processing for industries dependent on corrosion protection and base metal supply.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Zn (50–55% typical), Fe (5–12%), S (28–32%), Pb (<2%), SiO₂ (<3%), Cd (<0.3%)

• Purity / Grade: Standard Grade (50–53% Zn) and High-Grade (54–55% Zn) available for advanced smelting

• Physical Form: Fine granular powder (80% passing 200 mesh / 74 microns)

• Color: Dark gray to yellowish-brown (depending on iron sulfide content)

• Bulk Density: 1.6 – 2.1 t/m³ (loose)

• Moisture Content: <8% as shipped

• Packaging Options: Bulk vessel cargo (direct ship loading); 1.5–2 MT big bags for containerized LTL shipments

• Shelf Life: 24+ months when stored in dry, covered conditions (no chemical degradation; moisture control prevents caking)

3. Core Industrial Applications

• Primary Zinc Smelting (Pyrometallurgy / RLE process): Direct feed for roasting-leaching-electrowinning circuits – higher Zn grade reduces energy and acid consumption vs. lower-grade ores.

• Galvanizing Alloy Production: Blended with aluminum and other metals to produce continuous galvanizing bath alloys (e.g., Galfan, Galvalume) – low impurity levels (Pb, Cd) ensure bath stability and coating adhesion.

• Zinc Oxide & Chemical Manufacturing: Calcined feed for indirect-process ZnO used in rubber, ceramics, and sunscreens – consistent particle size enables uniform thermal decomposition.

• Steel Dust Recycling (Waelz Kilns): Compatible co-feed for recovering zinc from electric arc furnace (EAF) dust, improving kiln yield by 12–15% due to high reactive sulfur content.

Why better than alternatives: Tighter control of deleterious elements (Fe, SiO₂) reduces slag viscosity issues and increases metal recovery rates by up to 3% compared to run-of-mine ores.

4. Competitive Advantages

• Quality Consistency: Every lot tested via XRF and ICP-OES; certified assay certificates provided for each shipment. Inter-batch Zn variance < ±0.7%.

• Supply Reliability: Dedicated mine-to-port logistics with 12-month rolling contracts; minimum 98% on-time delivery to major ports (Antwerp, Busan, Durban, Houston, Shanghai).

• Logistics Capability: In-house warehousing at load ports ensures 5-day load readiness. Vessel chartering available for 5,000–50,000 MT parcels.

• Price Competitiveness: Priced at LME Zinc settlement minus TC/RC – transparent, benchmark-linked pricing with no hidden surcharges.

• Sustainability: Produced via dry-stack tailings and water-recirculated beneficiation; compliant with OECD Due Diligence Guidance for conflict-free and low-carbon supply chains (Scope 1 & 2 emissions data available on request).

• Technical Support: Full smelting mass balance modeling, impurity penalty calculators, and blending optimization service provided by in-house metallurgists.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20MT (one 20‑foot dry container or direct truckload)

• Loading Capacity (per container):

  • 20‑ft standard container: 20–22 MT net

  • 40‑ft high cube: 20 MT (limited by weight, not volume – hazardous material classification for bulk transport)

  • Bulk vessel: up to 50,000 MT per shipment (split cargo options available)