Table 1

Overview of the parameters of the conducted trials.

Trial no. IBM type Charge mass [kg] Lime addition [kg] B4 input mixture Upper vessel Crucible refractory Flow rates [Nl/min] P [kW]

H2 Ar
1 Sinter A 62.2 0 1.35 No insulation MA spinel 402 135 145
2 Pellets 61.6 3.4 1.26 No insulation MA spinel 427 142 143
3 Sinter B 60.0 0.9 1.12 Insulated MA spinel 641 213 109
4 Sinter B 58.0 0.8 1.11 Insulated MgO-P 617 206 104
5 Pre-reduced 60.0 0 1.31 Insulated MgO-P 585 202 113

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