Abstract:

 The basic principles of reaction kinetics in mineral materials science were briefly reviewed. The experimental and theoretical approaches to the reaction kinetics of typical processes in silicate systems were performed, including (1) sintering reactions in the system of high-alumina flyash-sodium carbonate at intermediate temperature, and thermal decomposition of K-feldspar in the system of potassium feldspar-gypsum-calcium carbonate; (2) hydrothermal decomposition of K-feldspar and crystallizing reaction of tobermorite in the system of KAlSi₃O₈-Ca(OH)₂-H₂O; (3) crystallizing reaction of β-wollastonite from glass-ceramic in the system of SiO₂-Al₂O₃-CaO; and (4) adsorption reactions to Hg²⁺ in polluted water by both micro-and meso-porous molecular sieves of 13X type zeolite and MCM-41 materials, respectively. Approaches to reaction kinetics for the processes in silicate systems are in theory of significances for optimizing experimental scheme of preparing mineral materials, improving processing control in industry, and enhancing the properties of mineral materials products.

Key words: mineral materials, silicate, kinetics, high-alumina flyash, K-feldspar, glass-ceramic, adsorption reaction