An investigation on dissolution kinetics of single sodium carbonate particle with image analysis method

作     者：Changdong Li Carlos Amador Yulong Ding 

作者机构：Institute of Particle Science and EngineeringUniversity of LeedsLeedsUK Procter&Gamble Newcastle-Upon-Tyne Innovation CentreNewcastleUK School of Chemical EngineeringUniversity of BirminghamBirminghamUK 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2016年第24卷第10期

页      面：1487-1496页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：the Institute of Particle and Science Engineering University of Leeds and Procter&Gamble Newcastle Innovation Centre(UK)for partially funding the project 

主　　题：Sodium carbonate Single particle Dissolution rate constant Image analysis 

摘      要：Dissolution kinetics of sodium carbonate is investigated with the image analysis method at the approach of single *** dissolution experiments are carried out in an aqueous solution under a series of controlled temperature and p *** selected sodium carbonate particles are all spherical with the same mass and *** dissolution process is quantified with the measurement of particle diameter from dissolution *** concentration of dissolved sodium carbonate in solvent is calculated with the measured diameter of *** surface reaction model and mass transport model are implemented to determine the dissolution mechanism and quantify the dissolution rate constant at each experimental *** to the fitting results with both two models,it is clarified that the dissolution process at the increasing temperature is controlled by the mass transport of dissolved sodium carbonate travelling from particle surface into *** dissolution process at the increasing pH is controlled by the chemical reaction on particle ***,the dissolution rate constant for each single spherical sodium carbonate particle is quantified and the results show that the dissolution rate constant of single spherical sodium carbonate increases significantly with the rising of temperature,but decreases with the increasing of pH conversely.