CO₂ mineralization is a significant method for effective CO₂ emission control because of formation of stable carbonate products and the availability of abundant mineral resources. The economic concern of the direct aqueous CO₂ mineralization prevents the application to global warming mitigation. This work discovers that the CO₂ mineralization of olivine can be significantly enhanced by using nitriloacetate (NTA) salt due to the competitive complexation and extraction of nickel and cobalt versus carbonate precipitation. The highly selective critical metal extraction can be also achieved and even considerably enhanced by using NTA compared to using ethylenediaminetetraacetate (EDTA) salt. Nearly 90% CO₂ mineralization, nickel and cobalt extraction can be achieved and is suitable for both nickel-poor olivine and nickel-rich saprolite and limonite laterites. The recovery of nickel and cobalt makes the CO₂ mineralization process favourable in both economics and technical outcome. The enhanced CO₂ mineralization process can potentially earn $29, $557, and $221 net benefits for each t olivine, saprolite, and limonite, respectively. The success of the CO₂ mineralization in technical and economic feasibility can potentially make the CO₂ mineralization widely applicable and can make significant contributions to sustainable minerals engineering and resources management, and enhanced supply of critical metals and CO₂ storage.

CO ₂矿化是一种有效控制CO ₂排放的重要方法，因为它能形成稳定的碳酸盐产物，并具有丰富的矿产资源。直接含水CO ₂矿化的经济问题阻碍了全球变暖减缓的应用。这项工作发现，由于镍和钴与碳酸盐沉淀的竞争性络合和提取，使用次氮基乙酸盐 (NTA) 可以显着增强橄榄石的CO _2矿化。与使用乙二胺四乙酸 (EDTA) 盐相比，使用 NTA 也可以实现甚至显着增强高选择性关键金属萃取。接近 90% 的 CO ₂可实现矿化、提镍、提钴，适用于贫镍橄榄石和富镍腐泥土、褐铁矿红土。镍和钴的回收使得CO ₂矿化过程在经济和技术上都是有利的。强化的 CO ₂矿化过程可能为每吨橄榄石、腐泥土和褐铁矿带来 29 美元、557 美元和 221 美元的净收益。_{CO 2}矿化在技术和经济可行性方面的成功可能使CO ₂矿化得到广泛应用，并可为可持续矿产工程和资源管理以及增加关键金属和CO _{2的供应做出重大贡献}贮存。