Acta Chimica Sinica ›› 1995, Vol. 53 ›› Issue (9): 855-860. Previous Articles     Next Articles

Original Articles

钙矾石晶体内部碳化过程物理模型的研究

陈贤拓;邹瑞珍;陈霄榕;穆平   

  1. 河北轻化工学院化工系;天津大学化学工程系;河北师范大学实验中心
  • 出版日期:1995-09-15 发布日期:1995-09-15

Studies on physical model of carbonation process in ettringite crystal

CHEN XIANTUO;ZOU RUIZHEN;CHEN XIAORONG;MU PING   

  • Online:1995-09-15 Published:1995-09-15

The carbonation law in ettringite crystal is studied in this paper, and the following model is supposed, the unidimensional diffusion is the controlling step in the initial stage, the reaction accords with the fission model in the medium stage, and the controlling step is the first-order reaction in the later stage. The carbonation kinetic equations are derived from above model, and they fit well with empiric data.

Key words: CRYSTALS, KINETICS EQUATIONS, SCANNING ELECTRON MICROSCOPES, ENTRINGITE, CARBONIZATION, PHYSICAL MODELS

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