Effect of reduction conditions on the swelling behaviour of cement-bonded briquettes
2004 (English)In: ISIJ International, ISSN 0915-1559, E-ISSN 1347-5460, Vol. 44, no 2, 294-303 p.Article in journal (Refereed) Published
Cement-bonded agglomerates of by-products generated in iron and steel plants are commonly used as burden material for blast furnaces. It has been observed that under certain conditions the briquettes containing pellet-fines show a tendency to swell catastrophically when reduced at 900-1 000 deg C using carbon monoxide as reducing agent. This swelling is dependent upon a number of factors like: reducing temperature, reducing conditions and composition of reducing gas. The optical micrographs do not show the formation of iron whiskers as the cause of swelling; instead, the reduced iron particles seem to move apart, thereby causing swelling. This paper describes the effect of various parameters that cause the abnormal swelling of briquettes.
Place, publisher, year, edition, pages
2004. Vol. 44, no 2, 294-303 p.
Research subject Process Metallurgy
IdentifiersURN: urn:nbn:se:ltu:diva-2844DOI: 10.2355/isijinternational.44.294Local ID: 08f299e0-ec2a-11db-88eb-000ea68e967bOAI: oai:DiVA.org:ltu-2844DiVA: diva2:975698
Validerad; 2004; 20061109 (ysko)2016-09-292016-09-29Bibliographically approved