利用钢渣提铁尾渣制备高硫铁铝酸盐水泥的方法
By utilizing steel slag iron extraction tailings and other industrial solid wastes to prepare high-sulfur ferroaluminate cement, the problems of low utilization rate of steel slag iron extraction tailings and resource dependence in traditional cement production have been solved, achieving efficient resource utilization and low-carbon production, and improving the mechanical properties of cement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING UNIV OF TECH
- Filing Date
- 2026-04-13
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the comprehensive utilization rate of steel slag tailings for iron extraction is low, and traditional ferroaluminate cement production relies on natural mineral resources, resulting in resource waste and high carbon emissions, which restricts the development of cement.
Using steel slag tailings as the main raw material, supplemented with carbide slag, aluminum ash, desulfurized gypsum and lithium slag, high-sulfur iron aluminate cement clinker is prepared through a staged calcination process. The mineral composition of the clinker is controlled to generate C4A3, C2S, iron phase and C5S2, and anhydrite is used to promote the hydration process.
This approach enables high-value utilization of steel slag tailings for iron extraction, reduces dependence on natural mineral resources, improves the compressive strength and mechanical properties of cement, and reduces carbon emissions.