Aqua-semidol / Dolomite
Aqua-semidol is a high-quality product that is produced from pure dolomite. By a specific thermal decomposition reaction half the CO2, which in dolomite is contained in the magnesium constituent, is released.
CaC03 * MgC03 -> CaCO3 * Mg0 + C02
Applications
Aqua-semidol is commonly used for filtration and processing drinking water. It de-acidises water by binding carbondioxide and adding calcium and magnesium to the water. Moreover, it is used as a carrier of reagents in desulphurisation of waste gases.
Chemical analysis |
Average
figures
|
EN 1017
Type 1
|
|
|---|---|---|---|
| MgO | mass-% | 23 - 28 | > 23 |
| CaCO2 | mass-% | 72 - 77 | > 68 |
| CaO free | mass-% | < 1 | < 2 |
| SiO2 | mass-% | 0.01 | < 2 |
| Al2O3 | mass-% | 0.02 | < 2 |
| Fe2O3 | mass-% | 0.05 | < 2 |
| SO4+ | mass-% | 0.03 | < 1 |
Trace elements |
|||
| Arsenic (As) | mg/kg | < 1 | < 3 |
| Cadmium (Cd) | mg/kg | < 0.1 | < 2 |
| Chromium (Cr) | mg/kg | 1.8 | < 10 |
| Mercury (Hg) | mg/kg | < 0.1 | < 0.5 |
| Nickel (Ni) | mg/kg | < 0.5 | < 10 |
| Lead (Pb) | mg/kg | 2.7 | < 15 |
| Antimony (Sb) | mg/kg | < 2 | < 3 |
| Selenium (Se) | mg/kg | < 5 | < 5 |
Physical characteristics |
Type | K0 |
K1
|
K2
|
| Sizes | mm | 0.5-1.25 | 0.5-2.5 | 2.5-5.0 |
| d50-value | mm | 0.70 | 1.75 | 3.08 |
| Density | g/cm3 | 3.33 | 3.33 | 3.33 |
| Bulk density | kg/m3 | 1100 | 1130 | 1140 |
| Colour | white |
| Shape | homogenous, porous, with rough surface free of fissures |
Packaging
- 25 kg plastic bags, palletised covered by plastic foil, 1 mt per pallet.
- Bulk-carriers.
