Quicklime / Hydrated Lime (pH Regulator)
CAS Number: 1305-78-8
Lime (calcium oxide or calcium hydroxide) is the most widely used pH regulator in sulfide ore flotation, providing alkaline conditions essential for xanthate stability, pyrite depression, and selective collector performance. It is used at high dosages to maintain flotation pulp pH between 10-12, effectively depressing pyrite and activating cyanide-based depressant systems. Lime is also used in tailings dam management for neutralization and heavy metal precipitation.
Technical Specifications
| appearance | White powder (CaO or Ca(OH)2) |
| moisture (%) | ≤2.0 |
| CaO content (%) | ≥90 |
| activity (mL HCl, 4N) | ≥360 |
Applications
- pH regulation in sulfide ore flotation circuits
- Pyrite depression at high alkaline pH
- Process water and tailings pH neutralization
- Heavy metal precipitation in mine water treatment
- Conditioning reagent for cyanide leaching circuits
Key Features
- Most cost-effective pH modifier for large-scale sulfide flotation
- High reactivity grade for rapid pH adjustment in flotation circuits
- Dual use in flotation pH control and tailings water management
- Available in quicklime or hydrated lime form for different applications
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CAS Number
1305-78-8
Category
Mining / Flotation ChemicalsAvailability
In StockSample
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