鉄と鋼
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
けいX光線スペクトル観察によるスラグの状態分析
住田 成和菊地 二朗前川 尚新明 正弘横川 敏雄
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1979 年 65 巻 1 号 p. 107-112

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X-ray fluorescence spectroscopy was applied to BF and LD slags. The following points were deduced from the results.
1) It is estimated from Si Kα energy shifts that the basicity of the BF slag is nearly equal to that of the alkali metal orthosilicate, while that of the LD slag is somewhat larger. This is consistent with the results of the chemical analysis of these slags.
2) The coordination number of aluminium in the slag is expected to be 4 which is reasonable considering the basic nature of the slag.
3) Ca Kα shifts indicate that calcium is present mainly as calcium orthosilicate in the BF slag. On the other hand, in the LD slag the shift is more positive than that of the BF slag. Thus, the value implys the presence of free CaO, in accordance with chemical analysis.
4) Chemical shifts of Mn Kβ1, 3 and Kα1 show that manganese is present as divalent ion (probably MnO).
5) From the mathematical separation of the profile of S Kα spectra, the sulfate/sulfide ratio is evaluated. The sulfate content is about 45 and 20% in the LD and BF slags respectively.

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