Abstract Mineral carbonation for global warming mitigation has attracted worldwide attention. The combination of mineral processing for primary metal recovery and mineral carbonation for carbon sequestration is an emerging field of study with the potential to minimize capital costs. A quantified kinetic formula of mineral carbonation was tested for application to various natural silicate samples. Our research confirms the optimized kinetic formula can be successfully applied to predict mineral carbonation of various natural silicate samples within absolute 4% precision. The kinetic factor is exponentially dependent on the activation energy of carbonation of natural silicate samples. The application of the kinetic formula is restricted to a mineral carbonation process under chemical reaction control. The successful application is not affected by mineral compositions, olivine content, mineral carbonation capacity, specific surface area, particle size distribution, temperature, CO2 partial pressure or concentration of sodium bicarbonate in solution. This quantified kinetic formula can predict mineral carbonation efficiency for an integrated process of mineral processing and mineral carbonation.

中文翻译：

---

量化动力学公式在天然硅酸盐样品矿物碳化中的应用与优化

摘要 用于减缓全球变暖的矿物碳化引起了全世界的关注。用于初级金属回收的矿物加工和用于碳封存的矿物碳化相结合是一个新兴的研究领域，具有最大限度地降低资本成本的潜力。测试了矿物碳酸化的量化动力学公式，以应用于各种天然硅酸盐样品。我们的研究证实，优化后的动力学公式可成功应用于预测各种天然硅酸盐样品的矿物碳化，精度绝对为 4%。动力学因子与天然硅酸盐样品的碳酸化活化能呈指数关系。动力学公式的应用仅限于化学反应控制下的矿物碳酸化过程。成功应用不受矿物成分、橄榄石含量、矿物碳酸化能力、比表面积、粒度分布、温度、CO2 分压或溶液中碳酸氢钠浓度的影响。这种量化的动力学公式可以预测矿物加工和矿物碳化综合过程的矿物碳化效率。