Carbon mineralization technology involves reactions between carbon dioxide (CO₂) and alkali earth metals such as calcium and/or magnesium to form thermodynamically stable solid carbonates (i.e., CaCO₃, and MgCO₃), and is currently being recognized as a promising method of both storing and utilizing CO₂. In particular, industrial solid wastes such as steelmaking slags (steel and iron slags) are considered to be suitable alkaline feedstock for carbon mineralization. The aqueous carbon mineralization process of steelmaking slags generally includes the extraction of alkali earth metals in a low pH condition, followed by carbonation with CO₂ at a high pH. However, since steelmaking slags often exhibit limited leachability depending on their physicochemical properties, it often has an important role in the design of the carbon mineralization process. Here, the leachability of the steel slag was examined in both acidic and basic conditions. The extraction kinetics as well as the various operating factors, such as temperature, and particle size distribution, under an acidic condition were also examined for the potential carbon sequestration using the alkaline wastes.

碳矿化技术涉及二氧化碳（CO ₂）与碱土金属（如钙和/或镁）反应形成热力学稳定的固体碳酸盐（即CaCO ₃和MgCO ₃），目前被认为是一种很有前景的碳矿化方法。储存和利用CO ₂。特别是炼钢渣（钢渣和铁渣）等工业固体废物被认为是碳矿化的适宜碱性原料。炼钢渣的水碳矿化过程一般包括在低pH条件下提取碱土金属，然后用CO ₂碳化在高 pH 值下。然而，由于炼钢炉渣根据其物理化学性质通常表现出有限的浸出性，因此它通常在碳矿化过程的设计中具有重要作用。在这里，在酸性和碱性条件下检查了钢渣的浸出性。还研究了酸性条件下的提取动力学以及各种操作因素，如温度和粒度分布，以使用碱性废物进行潜在的碳封存。