Calcium carbide is one of the prime reagent for hot metal desulphurization. It is engineered in such a way to get the best outcome in terms of 'S' removal from hot metal.
To be used in hot metal ladle at Hot Metal Desulphurisation Station. The treatment is mostly performed through pneumatic conveying system, N2 as a conveying media using dip-lance injection. To get the best results temperature of hot metal should be above 1350 °C.
Calcium Carbide based reagents splits up in calcium and carbon. This carbon is separated as graphite into the slag. Sulphur in the hot metal reacts with calcium ion and forms calcium sulphide. Calcium sulphide rises and entered in the slag phase.
Reaction is as follows:
CaC2 + FeS(s) = Cas (s) + 2C + Fe
● Calcium carbide reacts faster than lime based reagents.
● Higher efficiency at higher hot metal temperature.
● Low temperature loss after desulphurisation.
● Can be used as a single reagent (CaC2 mono injection) .
The reagent is supplied to the steel plant in bulkers with N2 gas inside. The reagents are unloaded by pneumatic means to the site storage silo.
| Composition |
Calcium Carbide : 52% (± 2%) Carbonaceous Mass : 4-6% Slag modifier : 2-3% Fluidized Lime : Balance |
| Grain Size Distribution |
< 63 micron - 80% min. < 90 micron - 95% min. < 100 micron - 100% |
| Density | 1000 Kg/m3 |
| Packing | In Silo tanker under dry N2 cover |
| Application | Hot Metal Desulphurisation by injecting in the ladle through pneumatic conveying system. |
DESMET REAGENT PVT. LTD. an ISO 9001:2015 and 45001:2018 certified company is a manufacturer and supplier of high quality Desulphurising reagents and Total Desulphurising Management provider for iron and steel industry.
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