Preparation of Forsterite-Spinel Refractory from MgO-Rich Residue Derived from Ludwigite Ore
摘要
MgO-rich residueMgO-rich residue, consisting of periclase, olivine, and forsteriteForsterite, was generated from ludwigite oreLudwigite ore. This study used MgO-rich residueMgO-rich residue as feed for preparing forsterite-spinel refractory. The phase transformation and physical properties as functions of sinteringSintering temperature and time were primarily investigated. Under optimized conditions of pre-roastingRoasting at 800 °C for 0.5 h and sinteringSintering at 1300 °C for 3 h, a high-quality refractory materialRefractory material with refractoriness of 1700 °C was obtained. This work provides ideas for the comprehensive utilization of ludwigite oreLudwigite ore.