Conference Proceedings
Australia/Japan Extractive Metallurgy Symposium, Sydney
Conference Proceedings
Australia/Japan Extractive Metallurgy Symposium, Sydney
Studies on Optical Basicity of Slags
The optical basicity (A, Pb2+ as probe ion) of various oxide glass systems has been measured to establish the new basicity scale of slag melts. Best conditions of glassy fragments to measure A were as follow, (1) 1 ti 4 x 10-2 wt% Pb content, (2) 0.2 mm in thickness, (ii) enough annealing (about 10 hr) at a temperature 200C below Tg., and (4) polishing a surface well. the variation of A with composition was correlated to that of relative oxygen activity of slag melts. The estimation of basicity of slag melts from it could be valid. The A of opaque and coloured quenched slags could not be measured. An approximately linear relationship, however, exsisted between the isomer shifts (b) of Fe3+ ion in slag derived from the Mossbauer effect and A._x000D_
Therefore, -4 of various metallurgical slag could be estimated from this relationship. These results can be expected to establish the new basicity scale of slag melts as the Louis basicity.
Therefore, -4 of various metallurgical slag could be estimated from this relationship. These results can be expected to establish the new basicity scale of slag melts as the Louis basicity.
Contributor(s):
T Yanagase, K Morinaga
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- Published: 1980
- PDF Size: 0.419 Mb.
- Unique ID: P198002032