REACTION BETWEEN SODIUM-CARBONATE AND SILICA SAND AT 874-DEGREES-C LESS-THAN T LESS-THAN 1022-DEGREES-C
REACTION BETWEEN SODIUM-CARBONATE AND SILICA SAND AT 874-DEGREES-C LESS-THAN T LESS-THAN 1022-DEGREES-C
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DOI：
10.1111/j.1151-2916.1985.tb15236.x
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发表时间：
1985-01-01
影响因子：
3.9
通讯作者：
HRMA, P
中科院分区：
文献类型：
--
作者：
HRMA, P
本文研究了碳酸钠与硅砂在874°~1022℃温度范围内的反应机理，详细讨论了碳酸钠与硅砂在脱碳、正硅酸盐溶解、偏硅酸盐溶解、二氧化硅最终溶解四个阶段的反应历程，包括质量平衡。给出了前两个阶段的溶解速率公式，并讨论了熔体润湿颗粒、熔体的数量和分布以及不均匀溶解(如偏析)对二氧化硅颗粒溶解速率的影响。强调了更详细的实验研究的必要性。
This paper is concerned with the mechanism of the reaction between sodium carbonate and silica sand at 874° to 1022deg;C. A reaction path which evolves in four stages, i.e., decarbonization, dissolution of orthosilicate, dissolution of metasilicate, and final dissolution of silica, is dealt with in detail, including mass balances. Formulas for dissolution rates in the first two stages are suggested, and the effect of wetting the grains by the melt, amount and distribution of the melt, and nonuniform dissolution (e.g., segregation) on the dissolution rate of silica grains are discussed. The need for more detailed experimental studies is stressed.