Technique | Equipment | Technique | Equipment |
---|---|---|---|
Gas pycnometry | Gas pycnometer | Vane-yield stress | Haake rheometer |
Laser diffraction | Sympatec | Slump | PVC cylinder |
X-ray diffraction | X-ray spectrometer | Flume | Gutter acrylic |
X-ray fluorescence | Dispersive X-ray spectrometer | Adsorption nitrogen and air permeability | BET adsorption system and Blaine apparatus |
Phosphate Tailings | Manganese Tailings | ||
---|---|---|---|
Technique | Specific Weight | Technique | Specific Weight |
Gas Pycnometry | 3.0 (g/cm3) | Gas Pycnometry | 3.1 (g/cm3) |
Phosphate Tailings | Manganese Tailings | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Element | (%) | Element | (%) | Element | (%) | Element | (%) | Element | (%) | Element | (%) |
Ca | 48.2 | P | 3.3 | K | 0.1 | Mn | 21.9 | Fe | 18.8 | Ca | 0.1 |
Mg | 4.6 | Fe | 1.5 | S | 0.9 | Si | 30.2 | K | 0.8 | - | - |
Si | 3.0 | Al | 0.3 | Ti | 0.1 | Al | 28.0 | Na | 0.2 | - | - |
Phosphate Tailings | Blaine | BET |
---|---|---|
Specific Surface Area | 9758.3 (cm2/g) | 1.9 (m2/g) |
Manganese Tailings | Blaine | BET |
Specific Surface Area | 8932.4 (cm2/g) | 28.9 (m2/g) |
Settling Rate (cm/s) | |||
---|---|---|---|
Sample | Cationic Flocculant | Anionic Flocculant | Non-Ionic Flocculant |
Phosphate Tailings | 0.480 | 0.241 | 0.195 |
Manganese Tailings | 0.033 | 0.067 | 0.393 |
Manganese Tailings Recirculation | Underflow (% Solids) | Phosphate Tailings Recirculation | Underflow(% Solids) |
---|---|---|---|
2 to 1 | 53.3 | 3 to 2 | 57.9 |
3 to 1 | 51.8 | 4 to 2 | 53.4 |
4 to 1 | 53.7 | 5 to 2 | 50.1 |
5 to 1 | 49.7 | 6 to 2 | 46.7 |
6 to 1 | 46.2 | 7 to 2 | 44.2 |