High-Performance Flotation Collector for the Mining Industry
In the mining and mineral processing industry, selecting the right flotation reagents is critical for achieving maximum recovery and concentrate quality. Among the most effective and widely used collectors is Potassium Amyl Xanthate (PAX) — a high-strength chemical that plays a vital role in separating valuable sulfide minerals from unwanted gangue.
PAX is extensively used in copper, lead, zinc, and gold mining operations. By enhancing the hydrophobicity of mineral surfaces, it ensures faster and more efficient flotation, resulting in higher recovery rates and improved concentrate grades.
Technical Specifications of Potassium Amyl Xanthate (PAX)
- Chemical Formula: C₅H₁₁OCS₂K
- Appearance: Light yellow granules or powder
- Solubility: Fully soluble in water
- pH Effect: Creates an alkaline environment during application
- Odor: Characteristic sulfur-type smell
Compared to other xanthates such as propyl or ethyl xanthate, PAX offers greater selectivity and stronger collecting power, making it ideal for complex ore flotation circuits.
How PAX Works in Flotation
The collector function of PAX is based on adsorption onto the surfaces of sulfide minerals. This chemical reaction makes the minerals hydrophobic, allowing them to attach to air bubbles in the flotation cell. As the bubbles rise, the valuable mineral particles are carried to the surface, separated from waste material, and recovered as concentrate.
Result:
- Higher metal recovery
- Improved concentrate purity
- Reduced processing losses

Key Advantages of Using PAX
- Strong collecting ability for copper, zinc, lead, gold, and antimony ores
- Works efficiently in a pH range of 6 to 10
- Compatible with frothers and pH regulators
- Boosts recovery rates while reducing auxiliary chemical usage
- Enhances plant efficiency and lowers operating costs
Industrial Applications in Mineral Processing
PAX is a primary flotation collector used globally for:
- Copper sulfide minerals – Chalcopyrite, bornite
- Lead minerals – Galena
- Zinc minerals – Sphalerite (with activators and secondary collectors)
- Precious metals – Gold in arsenopyrite and pyrite ores
- Special elements – Molybdenum, nickel, and antimony
These applications lead to lower metal losses, higher recovery rates, and better product quality in mineral concentration plants.
Technical Specifications
Feature | Specification |
---|---|
Product Name | Potassium Amyl Xanthate (PAX) |
Chemical Formula | C₅H₁₁OCS₂K |
Appearance | Light yellow to green granules |
Odor | Strong and pungent |
Purity | Minimum 90% to 92% (depending on grade) |
Moisture | Maximum 4% |
Water Solubility | Soluble |
pH (1% aqueous solution) | 9 to 12 |
Typical Dosage | 100–400 g per ton of mineral |
Packaging | 110 kg metal drum / 25 kg or 90 kg bag |
Shelf Life | 12 months under proper conditions |
Safety | Flammable; safety equipment required during handling |
Safety and Storage Guidelines
To ensure safe handling of Potassium Amyl Xanthate:
- Wear safety goggles, gloves, protective clothing, and a mask
- Store in a cool, dry, and well-ventilated area away from sunlight
- Avoid direct contact with skin or eyes
- Dispose of PAX-containing waste according to environmental regulations
Why Choose Alpha grinding media for PAX Supply?
Alpha grinding media provides high-purity Potassium Amyl Xanthate in industrial-grade packaging, backed by SGS inspection certificates. Our products undergo rigorous laboratory testing for purity and performance before shipment, ensuring reliable results in mineral processing plants.
Benefits of choosing Alpha:
- Consistent product quality
- On-time delivery nationwide
- Technical support from mining chemical specialists
Contact Us
For technical data sheets, MSDS, and updated PAX pricing, contact the experts at Alpha Grinding Media today and get the right flotation collector for your mining operation