Copper Sulfate (Sphalerite Activator)
CAS Number: 7758-98-7
Copper Sulfate is the standard activator for sphalerite in the zinc flotation stage of lead-zinc differential flotation circuits. Copper ions exchange with zinc on the sphalerite surface, creating a copper-activated surface that responds strongly to xanthate collectors, enabling high zinc recovery. It is also used to activate pyrite for gold recovery, and as a micronutrient in agricultural applications adjacent to mining operations.
Technical Specifications
| appearance | Blue crystalline powder or granules |
| iron (ppm) | ≤50 |
| pH (5% solution) | 3.5-4.5 |
| CuSO4·5H2O content (%) | ≥99 |
Applications
- Sphalerite activation in zinc flotation circuits
- Pyrite activation for gold recovery in flotation
- Sequential activation in Pb-Zn differential flotation
- Activation of tarnished copper and sulfide mineral surfaces
- Combined use with xanthate collectors for activated zinc recovery
Key Features
- Highly effective activator enabling xanthate collection of sphalerite
- Reliable and reproducible activation for consistent zinc recovery
- High purity grade ensures minimal iron contamination of flotation circuit
- Readily soluble for quick preparation of activation solutions
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CAS Number
7758-98-7
Category
Mining / Flotation ChemicalsAvailability
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