Calcined Bauxite is a key raw material used in high-temperature and abrasive applications. It is produced by heating natural bauxite ore at 1600–1800°C in rotary kilns, which removes moisture and volatile components, thereby increasing its hardness, alumina content, bulk density, and thermal resistance..

At Ochnology Solution Pvt Ltd, we import multiple grades of calcined bauxite directly from China and supply them to industries across India. These grades are available in both lump and powdered forms, suitable for refractories, abrasives, cement, and surface treatment applications.

Our Imported Calcined Bauxite Grades

High-Alumina Grade (Premium)

• Al₂O₃: 89% min
• Fe₂O₃: 1.8% max
• SiO₂: 5% max
• TiO₂: 0.1% max
• Bulk Density: ≥3.35 g/ccm
• Size: 0–1 mm, 1–3 mm
• Applications: High-grade refractories, precision abrasives, oilfield proppants

Micronized Grade (Powder Form – 200 Mesh)

• Al₂O₃: 85% min
• Fe₂O₃: 2.0% max
• SiO₂: 10% max
• TiO₂: 4.0% max
• Bulk Density: ≥3.15 g/ccm
• Size: 200 mesh
• Applications: Refractory castables, resin binders, ceramic abrasives, fireproofing

Mid-Grade Bauxite

• Al₂O₃: 80% min
• Fe₂O₃: 2.0% max
• SiO₂: 15% max
• Size: 0–1 mm, 1–3 mm, 3–5 mm
• Applications: High-alumina cement, mid-range refractory applications, abrasives

General-Purpose Industrial Grade

• Al₂O₃: 78% min
• Fe₂O₃: 2.0–3.2% max
• SiO₂: 17% max
• TiO₂: 4.0% max
• Bulk Density: ≥2.90 g/ccm
• AP: ≤8%
• Size: 0–1 mm, 1–3 mm, 3–5 mm
• Applications: Anti-skid surfacing, cement formulations, filler applications

Economical Grade (For Volume Applications)

• Al₂O₃: 75% min
• Fe₂O₃: 2.0% max
• SiO₂: 19% max
• TiO₂: 4.0% max
• Bulk Density: ≥2.80 g/ccm
• AP: ≤8%
• MI: ≤0.1%
• Size: 0–1 mm
• Applications: Road surfacing, thermal insulation bricks, cost-sensitive refractory work

Chinese vs Indian Calcined Bauxite – Which Grade Suits Your Application?

Parameter	Chinese Bauxite (Imported)	Indian Bauxite
Al₂O₃ Purity	85–89%	75–80%
SiO₂ Content	5–10%	15–19%
Fe₂O₃	1.8–2.0%	2.5–3.2%
Bulk Density	3.15–3.35 g/ccm	2.8–2.9 g/ccm
Consistency	High (controlled furnacing)	Variable (based on mine grade)
Price	Slightly higher, but superior	Economical but lower performance
Use Case	High-grade refractories, export	Cement, surfacing, low-duty uses

The choice between Chinese and Indian calcined bauxite depends entirely on the industry and specific application:

• Chinese calcined bauxite is preferred where high purity, low iron content, and superior thermal performance are critical. This includes high-grade refractories, precision abrasives, ceramic bonded applications, oilfield proppants, and export-focused products.
• Indian calcined bauxite is more economical and suitable for cost-sensitive applications such as anti-skid road surfacing, low-duty refractories, alumina cement manufacturing, and general filler usage where ultra-high alumina content is not mandatory.

In essence, for performance-critical applications, Chinese bauxite is ideal. For volume-driven or budget-conscious projects, Indian bauxite remains a practical alternative.

Why Buy From Us?

• Direct importer – We source all material from verified Chinese manufacturers
• Wide inventory – Multiple grades, particle sizes, and mesh options
• Domestic supply & bonded warehouse options
• Technical support – Guidance on grade selection for your application
• Custom orders – Sizes and specs tailored to client needs

Packaging & Delivery

• Packaging: HDPE jumbo bags or 25/50 kg sacks
• Sizes: 0–1 mm, 1–3 mm, 3–5 mm, or 200 mesh powder
• Delivery: PAN India by road/rail from port or warehouse

Contact Us Today

If you need reliable supply of imported Chinese calcined bauxite for refractories, abrasives, cement, or anti-skid surfacing, get in touch with us today for samples, pricing, and technical data sheets.