INTRODUCTION:
Calcium carbide is one of the prime reagents for hot metal desulphurization. It is engineered in such a way to get the best outcome in terms of ‘S’ removal from hot metal.
APPLICATION:
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.
HOW IT WORKS:
Calcium Carbide based reagents split up into calcium and carbon. This carbon is separated as graphite into the slag. Sulphur in the hot metal reacts with calcium ions and forms calcium sulphide. Calcium sulphide rises and enters the slag phase.
Reaction is as follows:
CaC2 + FeS(s) = CaS (s) + 2C + Fe
ADVANTAGE:
PACKAGING:
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.
DeCarb Specification Sheet (pdf)
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