Low-Silicon High-Purity Fluorite Balls

1. Product Overview

Launched in October 2010 in China, Low-Silicon High-Purity Fluorite Balls serve as an alternative to traditional fluorite lump ore. Key features include:

• Low SiO₂ content, high CaF₂ purity, minimal impurities

• Stable quality, uniform particle size, low pulverization rate

• Moisture-resistant, ideal for digital smelting

• Suitable for large-scale, high-tech production

1.1 Technical Specifications (Table 1)

2. Application and Principles of Fluorite in Metallurgy

2.1 Functional Properties

Fluorite (CaF₂), also known as fluorspar, is a halide mineral with a density of 3–3.2 g/cm³ and a Mohs hardness of 4. Its key metallurgical functions include:

· Lowering the melting point of refractory materials

· Enhancing slag fluidity for better metal-slag separation

· Desulfurization and dephosphorization

· Improving metal forgeability and tensile strength

2.2 Industry Requirements

Fluorite is widely used as a flux in:

· Steelmaking

· Ferroalloy production

· Iron processing

· Non-ferrous metal smelting

Metallurgical-grade fluorite typically requires:

· Lump ore form

· CaF₂ content >65%

· Controlled SiO₂ levels

2.3 Industry Standard (YB/T 5217-2005) – Table 2

2.4 Mechanism of Action

• Pure CaF₂ melts at 1418°C, but impurities (e.g., SiO₂, S) reduce this to ~930°C.

• Reacts with CaO to form 3CaO·2SiO₂ (melting point: 1362°C) and with MgO to produce low-melting compounds (1350°C).

• Excessive use may cause foaming slag, splashing, and furnace lining erosion, necessitating strict dosage control.

3. Current Status of Fluorite Lump Ore

Due to extensive mining, high-grade fluorite (CaF₂ >80%) is increasingly scarce and expensive. While industries like glass and ceramics have shifted to high-purity flotation fluorite powder, metallurgical applications require pelletizing/briquetting for practical use.

4. Our Fluorite Briquetting Technology

Core Advantages

4.1 Purity & Customization

· CaF₂ content: 80–90% adjustable

· Utilizes cost-effective raw materials (e.g., fluorite tailings with Fe₂O₃ >0.4%)

· Custom particle sizing available

4.2 Composition Stability (CNAS-certified) – Table 3

4.3 Structural Integrity

· Withstands: • >80kg static pressure • 2m drop tests

· Moisture content <0.5% post-drying

4.4 Environmental Safety

· Non-polluting binder system

· Zero P/S contamination risk

4.5 Production Capacity

· Annual output: • 12,000 tons (drying) • 80,000 tons (briquettes)

5. Our Fluorite Briquetting Technology

We process highgrade fluorite flotation powder with minimal binder to produce uniform, high-performance briquettes.

Advantages of Our Fluorite Balls

5.1High Purity & Customizable Grades (CaF₂: 80–90%)

• Cost-effective raw materials (e.g., low-grade fluorite tailings, Fe₂O₃ >0.4%).

• Tailored sizing available.

5.2 Stable Composition (Tested by CNAS-certified Foshan Ceramics Research Institute) – Table 3

5.3 High Compressive Strength & Moisture Resistance

• Withstands >80kg static pressure and 2m drop tests without significant breakage.

• <0.5% moisture content after drying.

5.4 Eco-Friendly Binder (No P/S Contamination)

• Minimal residue; evaporates at high temperatures without polluting molten steel.

5.5 Industrial-Scale Production

• 12,000-ton annual drying capacity

• 80,000-ton annual briquette output

6. Usage Performance (Since 2011)

It has been used by large traditional steel plants and stainless steel manufacturers both domestically and internationally, fully meeting the process requirements of refining furnaces and AOD furnaces, with significant results.

• 30% lower consumption vs. lump ore.

• 15% higher CaF₂, 20% lower SiO₂ → reduced slag corrosion, extended furnace life.

• Faster slag formation → shorter smelting time, lower FeSi consumption.

• Improved desulfurization/dephosphorization → higher steel quality.

• Lower overall production costs.

7. Company Profile

We, Aurora Minechem, specialize in comprehensive fluorspar solutions for metallurgical, ceramic, and chemical industries, delivering tailored solutions for diverse industrial needs.

Our Fluorspar Products

• Fluorspar Lumps (CaF₂ 80–95%) – Premium-grade raw material for metallurgical applications.

• Fluorspar Powder (90–96% CaF₂)– Standard grades for metallurgical, ceramic, and other uses.

• 5.3 Acid Grade (95–98% CaF₂) – Ideal for fluorochemical processes.

• 5.4 Fluorspar Briquettes – Cost-efficient alternative made from low-grade fluorite and CaF₂-rich tailings.

• 5.5 Fluorspar Balls (70–90% CaF₂) – Engineered for consistent performance in industrial processes.

• 5.6 Milling Fluorspar Powder – Custom-processed for fine grinding with optimal particle size distribution.