CAS-OB refining: slag modification with B2O3–CaO and CaF2–CaO

Autor:	G.-R. Li, X.-J. Zhang, Q.-X. Dai, B. Li, G.-M. Shi, Huimin Wang
Rok vydání:	2007
Předmět:	Mechanical Engineering Melting temperature Metallurgy Metals and Alloys chemistry.chemical_element Slag Sulfur Metal Viscosity chemistry Mechanics of Materials Partition equilibrium visual_art Materials Chemistry visual_art.visual_art_medium Refining (metallurgy)
Zdroj:	Ironmaking & Steelmaking. 34:350-353
ISSN:	1743-2812 0301-9233
DOI:	10.1179/174328107x155277
Popis:	Evaluation of CAS-OB refining slags showed that the melting temperature and viscosity were very high and could further increase during the CAS-OB refining process, causing excessive slag to stick to the snorkel with resulting operational problems. To avoid this, B2O3–CaO (mass ratio 1 : 1) and CaF2–CaO (mass ratio 1 : 1) were employed as modifiers added to the slag. The fusibility (melting temperature and viscosity) and desulphurising capacity of modified slag were investigated. Both B2O3–CaO and CaF2–CaO can effectively lower the melting temperature and viscosity of slag. The results of experiments on sulphur partition equilibrium between metal and slag indicate that the sulphur content of metal can be further decreased by the modified slag.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cf4d71c3c0f82288f3cb2d94e8d0b333 https://doi.org/10.1179/174328107x155277 Zobrazit plný text záznamu Plný text ve formátu PDF