MIBC — Methyl Isobutyl Carbinol
A Selective Alcohol-Based Frother Widely Used in Sulfide Ore Flotation
MIBC (Methyl Isobutyl Carbinol) is an organic chemical compound and a liquid alcohol derivative with a characteristic alcohol odor.
Role in the Flotation Circuit
Alcohol-based frothers are considered suitable flotation reagents due to their good selectivity and ability to produce stable froth. Froth flotation is one of the most common methods for processing low-grade sulfide copper ores. Several factors influence it, including the type and dosage of collectors, frothers, pH regulators, activators, and depressants.
MIBC is one of the most important frothers used in flotation circuits. It promotes stable froth, improves bubble stability, and enhances overall flotation efficiency by helping separate valuable minerals from unwanted materials.
Why Use MIBC
Produces dry but easily breakable froth, providing good control of froth stability.
A preferred frother for the flotation of many sulfide minerals and coal.
Suitable for the flotation of fine particles (<10 μm).
Effective in both acidic and alkaline environments, typically within a pH range of 4–12, even though most flotation operations are alkaline.
Soluble in most organic solvents.
Chemical & Physical Data
| Parameter | Specification |
|---|---|
| Chemical Formula | C₆H₁₂O |
| Freezing Point | -90°C |
| Acidity | ≤ 0.02 |
| Density (d₄²⁰) | ≥ 0.805 |
| Moisture | ≤ 0.1% |
| Purity | ≥ 98% |
| Boiling Point | 130°C |
Quality Data Sheet
| Parameter | Value |
|---|---|
| Purity | ≥ 99.0% |
| Appearance / Color | Colorless, clear liquid |
| Density (20°C) | 0.805 g/cm³ |
| Moisture | ≤ 0.1% |
| Acidity | ≤ 0.02% |
| Boiling Point | 130°C |
| Freezing Point | -90°C |