HM De-S, Re-C, Re-Si at Tronox KZN Sands

HM De-S, Re-C, Re-Si at Tronox KZN Sands – Empangeni (RSA)
HM De-S, Re-C, Re-Si at Tronox KZN Sands

Treatment stands:  1

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Injection lines:  2 (De-S and Re-C)

Ladle size:  60 t

HM Temperature:  ≈ 1500 °C

De-Sulphurization:  Injection of CaC2

Injection rates:  CaC2:  30 ~ 40 kg/min

Injection lances:  T-port

Transport gas:  N2

Alloy addition systems:  FeSi

Re-Carburization:  Injection of Graphite

  (96 % fix Carbon)

Injection rates:  Graphite:  60 ~ 80 kg/min

Transport gas:  N2

Initial Carbon content:  Ø 2.5 %

Final Carbon content:  Ø 3.8 %

Injection time:  Ø 16 min

Carbon consumption:  Ø 15 kg/t

Carbon yield:   ≈ 85 %