CaO-SiO2-8wt % MgO-17wt % Al2O3-2.5wt % BaO-K2O渣的黏性和除钾能力

Wen-guo Liu, Xiangdong Xing, H. Zuo
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引用次数: 3

摘要

研究了CaO/SiO2为1.07的CaO - SiO2 -8wt % MgO-17wt % al2o3 -2.5wt % BaO-K2 O渣体系的黏性和除钾能力。分析了0 ~ 5 wt%的K2 O含量对现渣粘度、渣结构、表观活化能和钾去除率的影响。结果表明:随着矿渣中K2 O含量的增加,矿渣的黏度和表观活化能有增大的趋势;当向渣中加入K2 O时,K+离子比Ba2+离子更优先补偿[AlO4]四面体,形成更复杂的网络结构,导致渣的聚合度更高。除钾率与碳对K+的还原程度有关,随着温度的升高和K2 O含量的增加,炉渣的除钾能力呈下降趋势。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The viscous behavior and potassium removal capacity of CaO–SiO2–8wt%MgO–17wt%Al2O3–2.5wt%BaO–K2O slag
The viscous behavior and potassium removal capacity of CaO–SiO2 –8wt%MgO–17wt%Al2 O3 –2.5wt%BaO–K2 O slag system with CaO/SiO2 of 1.07 were studied. The effect of K2 O content ranging from 0 to 5 wt% on the viscosity, slag structure, apparent activation energy and potassium removal rate of present slag were analyzed. The results showed that with increase of K2 O content in slag, the viscosity and apparent activation energy tended to increase. When adding K2 O into the present slag, K+ ion rather than Ba2+ could preferentially compensate [AlO4 ] tetrahedron and more complex network structures would be formed, leading to higher polymerization degree of slag. The potassium removal rate was related to the reduction degree of K+ by carbon, and with rising of temperature and increasing of K2 O content there was a decreasing trend for the potassium removal capacity of slag.
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