Mengda Titanium 74% High Titanium Slag for Steel and Metallurgical Applications
High titanium slag (HTS) with 74% TiO₂ content represents a critical intermediate material in titanium value chains, synthesized through advanced pyrometallurgical processing of ilmenite (FeTiO₃). This engineered product is manufactured via electric arc furnace smelting at 1,500-1,650°C, where selective phase separation isolates titanium dioxide from iron oxides. Unlike conventional metallurgical by-products, 74% HTS serves as a strategic raw material for manufacturing titanium tetrachloride (TiCl₄), titanium dioxide (TiO₂) pigments, and titanium sponge—the foundational material for aerospace alloys and advanced industrial components.
Manufacturing Process
The production protocol involves three precision-controlled stages:
Ilmenite Pre-Treatment
- Raw ilmenite undergoes magnetic separation to remove siliceous gangue minerals
- Agglomeration with carbon reductants (5-8% coke/coal) into 10-30mm pellets
Electric Arc Furnace Operation
- Conducted in 20-40MW submerged arc furnaces at 1,550-1,680°C
- Key redox reaction:
FeTiO₃ + C → TiO₂ (slag phase) + Fe (metallic phase) + CO↑ - Achieves 72-75% TiO₂ content in slag through phase partitioning
Post-Smelting Refinement
- Water quenching creates amorphous microstructure
- Magnetic separation reduces residual iron to <8%
- Crushing/screening to produce 5-50mm granules
Technical Specifications
Chemical Composition:
- TiO₂: 73-75% (ISO 5939 certified)
- FeO: 15-18%
- SiO₂: 3-5%
- CaO+MgO: <4%
Functional Properties:
- Acid solubility: 88-92% in concentrated H₂SO₄
- Bulk density: 2.8-3.2 g/cm³
- Melting point: 1,580-1,620°C
Industrial Grades:
- Grade 74A: Optimized for sulfate-process TiO₂ production
- Grade 74C: Chloride-process compatible with <3% CaO
Strategic Applications
1. Titanium Chemical Synthesis
- Primary feedstock for TiCl₄ production via fluidized bed chlorination
- Raw material for sulfate-process TiO₂ pigments (45% global market share)
- Precursor for titanium sponge manufacturing through Kroll process
2. Advanced Material Engineering
- Synthetic rutile production for welding electrode coatings
- Additive in ceramic glazes enhancing weather resistance (CTE reduction by 18-22%)
- Flux agent in specialty steelmaking (deoxidation efficiency improved by 30%)
3. Environmental Technologies
- Heavy metal adsorption matrix in wastewater treatment systems
- Photocatalytic component in air purification coatings
- Anti-fouling additive in marine protective coatings
4. Construction Materials
- Mineral additive in high-performance concrete (compressive strength +25%)
- Raw material for fire-resistant building panels
Competitive Advantages
Process Efficiency
- 28-32% reduction in sulfuric acid consumption vs. raw ilmenite
- Eliminates iron reduction steps, saving 15-20% operational costs
- High titanium concentration reduces evaporation energy by 18%
Environmental Compliance
- 25% lower carbon footprint per ton of TiO₂ produced
- Zero discharge of iron-containing by-products
- 90% material utilization in closed-loop systems
Supply Chain Optimization
- 40% mass reduction from raw ore to HTS lowers logistics costs
- Dual compatibility with sulfate and chloride TiO₂ production routes
Market Position & Industrial Impact
As a cost-effective alternative to natural rutile (which constitutes only 2% of global titanium reserves), 74% HTS enables manufacturers to balance economic viability with environmental regulations. Market data indicates:
- 65% of China's titanium dioxide production utilizes HTS feedstock
- 42% reduction in raw material costs for welding rod manufacturers
- Growing adoption in green technologies (18% CAGR in environmental applications)
The material's unique combination of moderate titanium content, controlled impurities, and process adaptability positions it as essential for:
- Mid-tier TiO₂ pigment production
- Secondary titanium sponge manufacturing
- Industrial sectors prioritizing cost-performance balance
Quality Assurance & Compliance
- Process Control: XRF monitoring of TiO₂/Fe ratios
- Final Product Certification:
- ICP-OES analysis for trace element quantification
- XRD phase identification (amorphous vs. crystalline content)
- ISO 14001-certified production facilities
Environmental Considerations
While traditional disposal methods like landfilling persist in some regions, progressive manufacturers implement:
- Slag recycling in cement production (28% substitution rate)
- Iron recovery from smelting by-products (92% efficiency)
- Closed-loop water systems reducing freshwater consumption by 35%
This optimized technical profile demonstrates how 74% high titanium slag serves as a versatile, economical solution across multiple industries. Its balanced TiO₂ content and engineered properties enable manufacturers to achieve operational efficiency while meeting evolving sustainability requirements. As titanium demand grows in renewable energy and green construction sectors (projected 6.8% annual growth through 2030), 74% HTS will continue playing a pivotal role in global industrial value chains.
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| Established | December 18, 2014 | ||
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About Beijing TDD E-commerce Co., Ltd.
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