Decomposition of CaCO3 in molten borate and its effect on slag foaming behavior

Authors
Chu, SJ Niu, Q Wu, K Wang, Y
Citation
Sj. Chu et al., Decomposition of CaCO3 in molten borate and its effect on slag foaming behavior, ISIJ INT, 40(6), 2000, pp. 549-553
Citations number
13
Categorie Soggetti
Metallurgy
Journal title
ISIJ INTERNATIONAL
ISSN journal
09151559 → ACNP
Volume
40
Issue
6
Year of publication
2000
Pages
549 - 553
Database
ISI
SICI code
0915-1559(2000)40:6<549:DOCIMB>2.0.ZU;2-Y
Abstract
A model for thermal composition of CaCO3 in Na2B4O7 molten slag is presente d in the paper. The experimental results show that the size of CaCO3 partic le and CaO content in slag have effect on foaming by gas inside the slag, a nd these effects are all dependent on the decomposition behavior of CaCO3 i n molten slag. Therefore, the foaming index, Sigma, which is measured with bubbling, cannot be employed to evaluate the stability of foams from gas in side the slag.