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| 1. Trade name: | ALCATEN |
|---|---|
| 2. Producer: | KVS EKODIVIZE a.s. Leskovská 566, 793 12 Horní Benešov Tel. 554 748 050, 554 748 051 Fax. 554 748 052 |
| 3. Company standart: | RST - 02 - 06 / A |
| 4. Classification per SKP: | 27.42.12 |
5. Possible applications:
The below-mentioned chemical composition enables the use of technical aluminium oxide moreover for treatment of steel and refining slag.
The presence of of Al2O3 implies increasing of flowability of slag, which positively affects their desulphurisation ability.
Metallurgical characteristics of ALCATEN are fully comparable with fluorspar (CaF2), which was used until now. The important advantage of ALCATEN is the fact that no compounds that could deteriorate the working and living environment are released when it comes into contact with fluid metal or with flow slag. When using fluorspar, ecologically unhealthy fluorides are released.
The presence of metal aluminium has a positive impact on decreasing of the oxidizing potential of refining slag, which enables increasing of the level of desulphurisation steel in the process. Alcaten has minimal contents of easily reducible oxides, especially Fe2O3, MnO and FeO.
The presence of CaO, MgO, and Al2O3 forms ca. 75%, which has a positive effect on the lifetime of lining of basically lined casting pots, especially during the steel processing in a slag ladle furnace. Specific consumption of ALCATEN is comparable with fluorspar and it varies depending on qualitative requirements on steel, within the limits 2 - 4 kg.t-1.
The mentioned physical-chemical parameters of ALCATEN predestine it also for further application in black metallurgy.
6. Chemical composition:
| Component | PN: RST-02-06/A | Current content | Form |
|---|---|---|---|
| Moisture at 140 °C | <5 % | 1.5% | free H2O |
| Al metal. | < 10% | 1 - 5 % | particle O 200 um |
| Al2O3 | > 60% | 60 - 65 % | Al(OH)3, Al2O3 AlO(OH) |
| MgO | <5 % | 3 - 4 % | MgO, Mg(OH)2, MgCO3 |
| CaO | > 10 % | 10 - 15 % | Ca(OH)2, CaCO3 |
| Annealing loss at 850 °C | 14 - 28 % | 16 - 18 % | H2O, CO2 |
| SiO2 | <5 % | 2 - 3 % | SiO2 |
| Fe2O3 |
<3 % | <1 % | <Fe2O3 |
| Other (Ti, Mn, Co, Zn, Cu) | <2% | < 1% |
The annealing loss is associated primarily with a decrease in CO2, which is fixed as a result of CaO being used as a binder.
7. Physical properties:
ALCATEN is produced in the form of ball-shaped pellets in order to minimize dust nuisance during its application and also easy manipulation during the dosing.
| Quantity | PN: RST-02-06/A | Current value | Note |
|---|---|---|---|
| Colour | grey | grey | |
| Specific weight | 2200 Kg/m3 | 2100 - 2300 Kg/m3 | |
| Bulk density | 950 - 1200 Kg/m3 | 1000 - 1150 Kg/m3 | |
| Granulometry: | pellets of spherical shape, granules | ||
| 0 - 3 mm | < 5% | 2 - 4% | |
| 3 - 15 mm | > 80% | 75 - 85% | |
| 15 - 35 mm | < 20% | 15 - 25% | |
| Height of fall | 2m | 2m | fall on a steel plate |
| Specific heat capacity | 1,02 KJ/KgK | 1,0 - 1,1 KJ/KgK | |
| Angle of repose | 15° | 12 - 18° | in bulk |
8. Packing and transport:
a/ lorries in returnable BIG BAG containers per ca. 1 tonne
b/ by rail in returnable BIG BAG containers
c/ by rail in bulk in SASZ or Zaz type wagons
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