摘要
以Ｎａ２Ｂ４Ｏ７熔体模拟冶金炉渣，提出了ＣａＣＯ３在熔渣中热分解的一种数学模型．实验证明，ＣａＣＯ３粒度变化和熔渣中ＣａＯ含量变化对内生气源发泡过程的影响均与熔渣中ＣａＣＯ３的分解行为有关．因此，吹气法测定的泡沫化指数 不能用于评价因内生气源引起的熔渣泡沫化稳定性．
A model for heat decomposition of CaCO3 in Na2B4O7 molten slag is presented in the paper. The experimental results show that the size of CaCO3 particles and CaO content in slag have definite effect on foaming due to internal creation of bubbles in the slag, which is solely dependent on the decomposition behavior of CaCO3 in molten slag. Therefore, the foaming index, , (measured with external bubbling) cannot be employed to evaluate the stability of foam generated by internany created gas bubbles in the slag.
出处
《化工冶金》
EI
CSCD
北大核心
2000年第2期158-163,共6页
基金
国家自然科学基金!(编号59574026)
关键词
泡沫渣
碳酸钙
热分解
Na2B4O7熔体
foaming slag
calcium carbonate
thermal decomposition, Na2B4O7 melt
