Introduction
Flotation is one of the most critical processes in mineral beneficiation, and selecting the right collector can make all the difference. Dithiophosphate 25, a versatile and high-performing reagent, has proven to be highly effective in the recovery of lead, copper, silver, and zinc sulfide ores. With its dual capturing and foaming properties, it provides excellent performance across neutral, acidic, and specific alkaline circuits. Its selectivity and stable performance have made it a preferred choice for modern mineral processing operations.
1. Product Overview
- Product Name: Dithiophosphate 25
- Classification: Class 8
- CAS Number: 4384-82-1
- Appearance: Dark brown oily liquid
- Purity: 49-51%
- pH: 13-14 (alkaline nature)
- Specific Gravity (20°C): 1.10 +/- 0.05
2. Applications of Dithiophosphate 25
Dithiophosphate 25 excels in flotation processes involving various sulfide ores and selective heavy metal oxide applications.
A. Sulfide Ore Recovery
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Lead, Copper, and Silver Ores
- Dithiophosphate 25 is particularly effective in recovering sulfide ores of lead, copper, and silver.
- Its strong collecting power in neutral and acidic media ensures high recovery rates and concentrate grades.
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Activated Zinc Sulfide Ores
- In preferential flotation operations, Dithiophosphate 25 works efficiently for activated zinc sulfides. It ensures clean separation and enhances overall flotation performance.
B. Lead and Zinc Separation
- Widely used for lead-zinc preferential flotation, Dithiophosphate 25 improves separation efficiency by selectively targeting lead sulfides while minimizing zinc flotation.
C. Heavy Metal Oxide Ores
- Under specific conditions, Dithiophosphate 25 can also exhibit collecting power for certain heavy metal oxide ores, providing a broader application scope.
D. Pyrite and Alkaline Circuits
- In alkaline circuits, Dithiophosphate 25 shows weak collectivity toward pyrite and other unwanted sulfide minerals, making it highly selective for valuable targets.
3. Key Advantages
Dithiophosphate 25 offers several advantages that make it a standout collector in mineral flotation:
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Strong Collecting and Foaming Ability
- Combines collecting and foaming properties for efficient flotation, ensuring robust recovery and stable froth formation.
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High Selectivity
- Highly selective for lead, copper, and zinc sulfides, reducing gangue interference and improving concentrate quality.
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Compatibility Across pH Ranges
- Performs effectively in neutral and acidic flotation circuits, offering flexibility for diverse ore types.
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Preference in Complex Ores
- Well-suited for lead-zinc ores, activated zinc sulfide systems, and specific heavy metal oxides.
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Cost-Efficient
- Requires relatively low dosages while delivering consistent performance, ensuring economic efficiency.
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Environmentally Responsible
- Most of the reagent binds to the concentrate and is destroyed during downstream processing, minimizing environmental impact.
4. Operational Guidelines
For optimal results, the following application guidelines should be adhered to:
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Dosage Control
- Add Dithiophosphate 25 directly to the flotation adjustment tank or ball mill in its original liquid form.
- Dosage levels vary depending on the ore type and process requirements but should be determined through laboratory testing.
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Compatibility Testing
- Ensure compatibility with frothers, depressants, and other reagents used in the flotation circuit.
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Circuit Conditions
- Ideal performance is achieved in neutral or acidic pH ranges, though the product also delivers selective flotation in alkaline circuits.
5. Safety and Handling
While Dithiophosphate 25 delivers exceptional performance, proper handling practices must be followed to ensure safety:
- Personal Protective Equipment (PPE):
- Use safety glasses, rubber gloves, and splash shields to prevent direct contact.
- Avoid Vapors:
- Operate in well-ventilated areas to avoid inhalation of fumes or vapors.
- Static Discharge Precaution:
- Use non-sparking tools and ensure equipment is grounded to prevent static buildup.
- Storage:
- Store in plastic drums or coated steel containers in a cool, dry, and well-ventilated place.
- Avoid exposure to freezing temperatures, direct sunlight, and ignition sources.
6. Packaging and Storage
Packaging Options:
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Plastic Drums:
- Net weight 200 kg per drum, strapped securely on wooden pallets.
- 80 drums per 20-foot container (16 MT).
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IBC Tanks:
- Net weight 1000 kg per IBC, with 20 IBC tanks per 20-foot container (20 MT).
Storage Conditions:
- Keep in a shaded, dry, and ventilated place.
- Follow the "first in, first out" principle for inventory management.
- Avoid freezing to maintain product stability.
7. Environmental Considerations
Dithiophosphate 25 aligns with modern environmental safety requirements:
- Minimal Residue: Most of the reagent binds to the concentrate and is destroyed during processing.
- Tailings Management: Ensure proper treatment of flotation tailings to prevent release into natural water systems.
- Compliance: Mining operations can use Dithiophosphate 25 with confidence, knowing it supports environmental responsibility when handled correctly.
8. Why Choose Dithiophosphate 25?
Dithiophosphate 25 stands out as a reliable and effective collector for sulfide ore flotation:
- Superior Collection: Strong collecting power for lead, copper, silver, and activated zinc sulfides.
- Foaming Action: Dual-purpose ability simplifies flotation operations.
- Selective Performance: Reduces pyrite and gangue mineral collection in alkaline circuits.
- Cost-Effective: Delivers high performance with minimal reagent consumption.
- Environmentally Safe: Designed for minimal environmental impact and compliant with safety standards.
Conclusion
Dithiophosphate 25 is a versatile and efficient flotation reagent designed for sulfide ore flotation, including lead, copper, silver, and activated zinc ores. Its superior selectivity, excellent collecting properties, and compatibility across a range of pH conditions make it an invaluable solution for modern mineral processing operations.
By integrating Dithiophosphate 25 into flotation circuits, mining operations can achieve:
- Higher recovery rates of valuable metals
- Cleaner and higher-grade concentrates
- Greater cost-efficiency with reduced reagent usage
For a reliable and proven flotation collector that meets today's operational and environmental demands, Dithiophosphate 25 is the ultimate choice.
Maximize recovery. Optimize selectivity. Choose Dithiophosphate 25.
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