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PS Ball (Precious Slag) is a products cut off
converter slag by the atomizing method (patened worldwide).
PS Ball and conventional converter slag are same in its composite by nature
in the converter but compounds of the composite become different because
of different method of slag treatment.
Conventional slag cooling slowly in the open yard has composites of CaO,
FeO, Fe2O3 and etc.
Currently, sub-4mm PS Balls are being produced for Filter media(Ecomedia),
ceramic filters (PS Membrane), coagulate(Ecofloc), construction materials,
abrasives, and desulfurizing agents. |
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| Composition |
T-Fe |
M-Fe |
FeO |
Fe2O3 |
SiO2 |
CaO |
Al2O3 |
MgO |
Na2O |
K2O |
| WT(%) |
20.83 |
Tr. |
3.35 |
26.06 |
12.69 |
40.3 |
2.22 |
7.95 |
<0.1 |
<0.1 |
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Tr : trace element |
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| Contents
Component |
Discharge
Standard (ppm) |
PS
Ball (ppm) |
| Pb |
less than 3.0 |
ND |
| Cu |
less than 3.0 |
ND |
| As |
less than 1.5 |
ND |
| Hg |
less than 0.005 |
ND |
| Cd |
less than 0.3 |
ND |
| Cr |
less than 1.5 |
ND |
| CN |
less than 1.0 |
ND |
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ND : Not Detected |
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