Description
1. Product Overview
This is metallurgical‑grade bauxite ore, the primary feedstock for alumina production via the Bayer process. Its core value proposition lies in a high alumina‑to‑silica ratio (A/S > 8), directly lowering caustic soda consumption and tailings volume. As the sole commercial ore for aluminum production and a critical input for high‑alumina cement and abrasives, it represents a non‑negotiable raw material for global heavy industry.
2. Key Specifications & Technical Characteristics
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Chemical composition: Al₂O₃ 48–52%, SiO₂ 4–6%, Fe₂O₃ 18–22%, TiO₂ 2–3%, LOI 24–27%
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Grade: Metallurgical grade (sweetened) – A/S ratio ≥ 8
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Physical form: Friable pisolitic lump; color: reddish‑brown; particle size: 0–50 mm (90% passing 25 mm); bulk density: 1.4–1.6 t/m³
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Packaging: Bulk vessel loading, direct into cargo holds; optional 1.5 MT jumbo bags upon request
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Shelf life: Indefinite when stored away from moisture (hygroscopic – avoid prolonged water contact)
3. Core Industrial Applications
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Primary industries: Aluminum smelting (via alumina refining), high‑alumina cement production, abrasive manufacturing, and chemical grade applications.
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Operational use cases: Bayer process digestion at 140–280°C; refractory grade blending for furnace linings; slag conditioning in steelmaking.
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Performance advantage: Higher A/S ratio reduces silica scaling in digesters, cuts desilication chemical costs by 12–15%, and yields 2–3% more alumina per ton compared to regional lower‑grade ores. Results in lower total refining cost per ton of alumina.
4. Competitive Advantages
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Quality consistency: Shipment‑by‑shipment chemical uniformity (<0.5% variance in Al₂O₃) – ISO 3082 sampling certified.
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Supply reliability: Dedicated mining block with 18+ months of proven reserves; annual capacity 1.2M MT.
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Logistics capability: In‑house port loading at 5,000 MT/day via conveyor system; 14‑day lead time to main SE Asian smelters.
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Price competitiveness: Long‑term contract pricing linked to LME aluminum; spot discounts available for >50,000 MT orders.
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Environmental & technical support: Low reactive silica reduces red mud generation; full assay certificates and process optimization advisory included.
5. Commercial & Supply Information
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Minimum order quantity (MOQ): 20,000 MT (bulk)
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Loading capacity: 55,000 MT per Handymax vessel; 25,000 MT per containerized bulk shipment (20’ containers at 24 MT payload each)











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