Focusing on high energy consumption of refractories, our research works about monolithic refractories were introduced, such as bauxite-based corundum, micro-porous light-weight bauxite-based clinker, light-weight alumina-rich spinel, magnesia micropowder, fast-drying refractory castables of blast furnace, large-area long-life fast-sintering fling refractories for converter, high-strength light-weight mullite castables for ladle permanent liner, high-strength and low-conductivity forsterite-vermiculite insulating board, basic shotcreting castables for ladle permanent liner, magnesia-calcia gunning mix for RH refining furnace, and light-weight castables in petrochemical industry.