“…In this research [ 54 , 55 ], a two-stage technique for the reductive melting of TMK with soda additives was developed both without oxidation and with preliminary oxidation of TMK to Fe 2 O 3 . The optimal technological parameters were determined: consumption of 8 % special coke or C/Fe = 0.103, consumption of Na 2 O – 3 %, solid-phase reduction temperature 1250 °C, exposure time – 50 min, melting temperature 1650 °C, and exposure time – 35 min.…”