Liqui-solid reaction model and verification

When the reaction is controlled by the diffusion through liquid, the dissolution process of mono-sized particles was predicted based on the shrinking core model. The changing of particle's diameter satisfied the square-line law. Based on the dissolution of mono-sized particles, the model of solids overall conversion has been established, and the correlation between micro and macro model of mono-sized particle and particle groups has been obtained. The correlation model was verified by the dissolution experiment of limestone with different temperature and concentration of hydrogen iron. And the results of model are well agree with the experimental results. This correlation model has a significant for improving the liquid-solid reaction theory system and back deriving micro chemical reaction parameters from the macro experimental data.