Refractory material and preparation method thereof

The invention relates to the technical field of refractory material preparation, in particular to a refractory material prepared from slag produced by a ferronickel smelting heat furnace. The refractory material is prepared by adding an excessive reducing agent into high-temperature slag produced by a ferronickel smelting heat furnace under a heating condition; the heating temperature ranges from 1550 DEG C to 1800 DEG C; the reducing agent is pulverized coal; the mass ratio of the excessive reducing agent to the slag is (0.5-0.6): 1; the refractory material is prepared from the following components in percentage by mass: 75.0 to 95.0 percent of MgO, 6.0 to 12.0 percent of Al2O3 and 4.0 to 10.0 percent of CaO. The refractory material prepared by the method disclosed by the invention has the advantages of high content of active components, realization of recycling of waste gas resources, low production cost, relatively high purity of the refractory active components and excellent highest use temperature. 本发明涉及