Study on a New Type of Composite Carbon Reducing Agent Pellet with Added Silica

Non-coking coal (NC) and petroleum coke (PC) were mixed in different ratios, and then silica (HBS) with different particle sizes was added to the mixture. Composite carbonaceous reducing agent pellets were prepared by cold pressing. The particle size of raw materials was divided into 80–100 mesh (81MR) and 100–200 mesh (12MR). The effects of four kinds of silica particle size ranges, 40–80 mesh (48 M), 80–100 mesh (81 M), 100–200 mesh (12 M), > 200 mesh (20 M), silica contents 0–5