金属学报  1986, Vol. 22 Issue (2): 68-74

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Fe-La-O-S系平衡的研究

陈冬;韩其勇;王涛;项长祥

北京钢铁学院;北京钢铁学院;北京钢铁学院;北京钢铁学院

EQUILIBRIUM OF Fe-La-O-S SYSTEM

CHEN Dong; HAN Qiyong; WANG Tao; XIANG Changxiang (Beijing University of Iron and Steel Technology)

陈冬;韩其勇;王涛;项长祥. Fe-La-O-S系平衡的研究[J]. 金属学报, 1986, 22(2): 68-74.
, , , . EQUILIBRIUM OF Fe-La-O-S SYSTEM[J]. Acta Metall Sin, 1986, 22(2): 68-74.

摘要 参考文献 相关文章 Metrics 全文: PDF(535 KB)   摘要: 本实验采用ZrO_2(MgO)固体电解质氧浓差电池直接测定氧的活度,用放射性测量技术及低温无水电解分离夹杂的方法,考察了电解分离过程中La_2O_2S的稳定性并测定了铁液中溶解态的La含量,对实验数据用平衡值外推法处理得到: 1550℃ K_(La_2O_2S)=3.81×10~(-19) e_S~(La)=-4.1 1600℃ K_(Li_2O_2S)=6.45×10~(-19) e_S~(La)=-4.8 1650℃ K_(Li_2O_2S)=7.41×10~(-19) e_S~(La)=-4.2 La_((1))=[La] △G_(sol)~0=-136700+59.82T,γ_(La)~0=0.33(1873K) 实验结果表明La具有比Ce,Nd,Y更强的脱硫氧能力。 Abstract：A study was made of the equilibrium of Fe-La-O-S system. The oxygen activity was directly measured by the solid electrolyte sensors made of ZrO_2(MgO) tube. The stability of La_2O_2S in the electrolytic separation and the content of La as dissolved state in liquid iron were examined by means of radioassay and electrolytic isolation of inclusion in organic electrolyte under low temperature. By extrapolation of data obtained, the equilibrium constant of La_2O_2S may be described as: 1550℃ K_(La_2O_2S)=3.81×10~(-19) e_s~(La)=-4.1 1600℃ K_(La_2O_2S)=6.45×10~(-19) e_s~(La)=-4.8 1650℃ K_(La_2O_2S)=7.41×10~(-19) e_s~(La)=-4.2 La(1)=[La] △G_(sol)~0=-136700+59.82T, γ_(La)~0=0.33 (1873 K) It seems that the deoxysulphurizing effect of La is more intense than that of Co, Nd and Y. 收稿日期: 1986-02-18      基金资助:中国科学院科学基金 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 陈冬 韩其勇 王涛 项长祥 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1986/V22/I2/68 1 Vahed, A.; Kay, D.R., Metall. Trans. B, 7B (1976) , 375． 2 王常珍;王福珍;杜英敏;张小平,金属学报,16 (1980) ,83． 3 董元篪,北京钢铁学院研究生毕业论文,1981． 4 项长祥,北京钢铁学院研究生毕业论文,1981． 5 杨斯馥,北京钢铁学院研究生毕业论文,1982． 6 韩其勇等, Proc. of Sino-Jpn. Symp. on Steelmaking. Beijing, 1981． p, 25． 7 江岛等,铁钢,63 (1977) , 943． 8 Worrell, W.L.; Chipman, J., Trans. Metall. Soc. AIME, 230 (1964) , 1682． 9 #12 10 杜挺,中国金属学会冶金过程物理化学学术会议论文,1980． 11 Fischer, W.A., Arch. Eisenhuttenwes., 49 (1978) , 425． 12 韩其勇,球铁。1980,№2,31． 13 韩其勇;刘士伟;牛红兵;唐志伟,Proc. of First China-USA Bilateral Metallurgical Conf., Beijing, 1981, p. 192． 14 丰锡安,北京钢铁学院研究生毕业论文,1982． 15 Wilson, W.G., et al, J. Met., 26 (1974) , №5, 14． 16 Schindlerva, V.; Buzek, Z., Hutn. Listy, 25 (1970) , №5, 316． 17 Buzek, Z., Chemical Metallurgy of Iron Steel, ISJ, London, 1973, p. 174． ; Buzek, Z., Hutn. Listy, 29 (1974) , 784． 18 Ejima, A., et al., Trans. Iron Steel Inst. Jpn., 17 (1977) , 349． 19 Vahed, A.; et al., Metall. Trans., 7B (1976) , 375． 20 Elliott, J.F., et al., Thermochemistry for Steelmaking, Addison-Wesley, 1963, p. 410． 21 Sigworth, G.K.; Elliott, J.F., Met. Sci., 8 (1974) , 298． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed