硅酸盐学报2011，Vol.39Issue(4)：714-717,4.
含MgO的硅酸盐水泥熟料的形成动力学
Formation Kinetics of Portland Cement Clinker Containing with Magnesium Oxide
摘要
Abstract
The effects of magnesium oxide (MgO) on the formation kinetics of Portland cement clinker were investigated by analyzing the clinker formation rate, the reaction-rate constant (k) and the activation energy (Ea). The k and Ea were calculated according to the Gentling equation and Arrhenius equation. The mineral compositions and morphology of the resultant clinker were analyzed by X-ray diffraction and scanning electron microscope. The results show the formation of silicate minerals is promoted and the calcination temperature of clinker is decreased at a suitable content of MgO added into the raw meal. The k value increased from 0.745 0 × 10-5 to 4.543 6 × 10-5 s-1 and the Ea value decreased from 386 to 184kJ/mol when the MgO content increased from 0 to 2％ in mass.However, the reversed results were obtained at the MgO content of ＞2％.关键词
动力学/水泥熟料/氧化镁Key words
kinetics/ cement clinker/ magnesium oxide分类
化学工程引用本文复制引用
王春芳,周宗辉,刘彩霞,程新..含MgO的硅酸盐水泥熟料的形成动力学[J].硅酸盐学报,2011,39(4):714-717,4.基金项目
国家"973"计划(2009CB623102)资助项目. （2009CB623102）
