金属学报  1964, Vol. 7 Issue (1): 24-31

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CaO-CaF_2和CaO-SiO_2-CaF_2系熔渣和HF-H_2O气体间的平衡研究

徐元森;邹元爔;刘辅链

中国科学院冶金研究所;中国科学院冶金研究所;中国科学院冶金研究所

A STUDY OF THE EQUILIBRIUM BETWEEN HF-H_2O GAS AND SLAGS OF THE CaO-CaF_2 AND CaO-SiO_2-CaF_2 SYSTEM

HS(?) YUAN-SUN; CHOU YUAN-HSI; LIU FU-LIEN(Institute of Metallurgy; Academia Sinica)

徐元森;邹元爔;刘辅链. CaO-CaF_2和CaO-SiO_2-CaF_2系熔渣和HF-H_2O气体间的平衡研究[J]. 金属学报, 1964, 7(1): 24-31.
, , . A STUDY OF THE EQUILIBRIUM BETWEEN HF-H_2O GAS AND SLAGS OF THE CaO-CaF_2 AND CaO-SiO_2-CaF_2 SYSTEM[J]. Acta Metall Sin, 1964, 7(1): 24-31.

摘要 参考文献 相关文章 Metrics 全文: PDF(624 KB)   摘要: 利用CaF_2的高溫水解反应平衡,測定了1450℃时CaO-CaF_2系和CaO-SiO_2-CaF_2系熔渣中CaO对CaF_2的活度比,并按变通的Gibbs-Duhem方程式計算了二元系中CaO及CaF_2的活度和三元系中SiO_2的活度。試驗結果表明,将CaF_2視为中性,而用簡单的CaO/SiO_2比表示含氟高炉渣的碱度是合理的。从三元系中等SiO_2活度线可以看出提高碱度可大大降低SiO_2的活度,因而可以对渣中氧化硅的还原和氟的揮发起有效的抑制作用。 Abstract：An equilibrium study of the reactionCaF_2(in slag)+H_2O=CaO(in slag)+2HF.between HF-H_2O gas and slags of the CaO-CaF_2 and CaO-SiO_2-CaF_2 system has been carried out with a view to evaluating activities in the said slags. Values of the ratioα_(CaO)/α_(CaF_2) are calculated from experimental data, and activities of the individual components are obtained from the α_(CaO)/α_(CaF_2) values with the modified Gibbs-Duhem equations derived by the authors for binary and ternary systems.It has been shown that the simple ratio CaO/SiO_2 can be used as a suitable criterion for the basicity of CaO-SiO_2-CaF_2 slags. The beneficial effects of a fairly basic slag for suppressing silica reduction and fluorine volatilization in blast-furnace smelting of fluorine-bearing iron ore are discussed in the light of the present results. 收稿日期: 1964-01-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 徐元森 邹元爔 刘辅链 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1964/V7/I1/24 [1] 周仁、邹元爔、孙鍾礼等:金属学报,1958,3,181． [2] 周仁、邹元爔、徐元森等:金属学报,1958,3,17． [3] 徐元森、邹元爔:化学学报,1963,20,(3) ,181． [4] #12 [5] Baak, T.: Acta Chem. Scand., 1954, 8, 1727． [6] Oelsen, W., Maetz, H.: Mitt. K. Wilh. Inst. Eisenforsch., 1941, 23, 202． [7] Wagner, C.: Thermodynamics of Alloys, (Addison-Wesley, 1952) , p. 18． [8] Baak, T.: The Physical Chemistry of Steelmaking, ed. J. F. Elliott, (Wiley, 1958) , p. 84． [9] Lenfesty, F. A., Brosheer, J. C.: Ind. Eng. Chem., 1952, 44, 1448． [10] Kubaschewski, O., Evans, E. LL.: Metallurgical Thermochemistry, (Academic, 1951) , p. 306． [11] Perrin, R.: Brit. Patent, 1955, Apr., 20, No. 728, 447． [12] 周仁、邹元爔、徐元森等:金属学报,1959,4,1．J No related articles found! Viewed Full text Abstract Cited   Shared      Discussed