Dissolution mechanism of fluorine in aqueous solution from fluorine containing synthetic slag

被引:21
作者
Mizukami, H
Ishikawa, M
Hirata, T
Kamiyama, T
Ichikawa, K
机构
[1] Sumitomo Met Ind Ltd, Corp Res & Dev Labs, Ibaraki 3140255, Japan
[2] Sumitomo Met Ind Ltd, Chuo Ku, Tokyo 1046111, Japan
[3] Sumitomo Met Ind Ltd, Kashima Steel Works, Ibaraki 3140014, Japan
关键词
slag; fluorine; dissolution; shaking test;
D O I
10.2355/isijinternational.44.623
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
The behavior of dissolution of fluorine from the fluorine containing synthetic slag was clarified by the shaking test under various experimental conditions. The fluorine containing minerals were cuspidine, fluorapatite and fluorite. The amount of fluorine dissolved from the slag increased with an increasing of the concentration of fluorine in the slag and an decreasing of the size of slag particles. The amount of fluorine dissolved from the slag could be estimated from the size distribution of slag particle and the concentration of slag for the shaking test. The amount of fluorine dissolved from the slag decreased with an increasing of the basicity of slag and the concentration of alumina. The amount of fluorine from the slag increased with increasing the cooling rate during solidification because the slag became amorphous. The dissolution of fluorine from the slag was controlled by the mass transfer in the liquid layer which was formed near the surface of slag.
引用
收藏
页码:623 / 629
页数:7
相关论文
共 8 条
  • [1] CHIDA T, 1996, CHEM KINETICS TRANSP, P89
  • [2] Leaching behavior of fluorine-containing minerals in seawater
    He, HY
    Suito, H
    [J]. ISIJ INTERNATIONAL, 2002, 42 (02) : 132 - 138
  • [3] Fluorine-containing mineral phases in ironmaking and steelmaking slags and their solubilities in aqueous solution
    Inoue, R
    Suito, H
    [J]. ISIJ INTERNATIONAL, 2002, 42 (07) : 785 - 793
  • [4] IWATA S, 1995, SOIL CHEM, P41
  • [5] Sakuraya T, 2000, KAWASAKI STEEL GIHO, V32, P323
  • [6] Dissolution Behavior and stabilization of fluorine in secondary refining slags
    Suito, H
    Inoue, R
    [J]. ISIJ INTERNATIONAL, 2002, 42 (08) : 921 - 929
  • [7] Suito H, 2002, TETSU TO HAGANE, V88, P340
  • [8] UEDA S, 2001, SEISAN KENKYU, V53, P231