Importance of fine ore chemical composition and high temperature phase relations: applications to iron ore sintering and pelletising

Autor:	J. M. F. Clout, Mark I. Pownceby
Rok vydání:	2003
Předmět:	Iron ore Geochemistry and Petrology Phase (matter) Metallurgy Pellet engineering Pellet Product Sintering General Chemistry engineering.material Geotechnical Engineering and Engineering Geology Iron ore sintering Chemical composition
Zdroj:	Mineral Processing and Extractive Metallurgy. 112:44-51
ISSN:	1743-2855 0371-9553
DOI:	10.1179/037195503225011402
Popis:	In the iron ore industry significant emphasis is placed throughout the mining process on meeting chemical composition specifications for the export of fine ores. However, little has been published on the implications of ore chemical composition for iron ore sinter and pellet product quality. The ore bulk composition and the nature of the minerals in the fine ore both play a critical role in determining the type of high temperature bonding phases that form during sintering and pelletising. This paper uses the experimental determination of phase relations in model sinter and pellet systems such as Fe2O3-CaO-SiO2 (FCS) and Fe2O3-Al2O3-CaO-SiO2 (FACS) to examine the links between iron ore chemical composition and the temperatures used during sintering and pellet firing. The phase relations help to establish the critical thermal and compositional parameters that control the bonding phase chemistry, which in turn influences the physical characteristics of the sinter or pellet matrix. Results show that l...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f4c2245e02d7f9bd175546593e1738b5 https://doi.org/10.1179/037195503225011402 Zobrazit plný text záznamu Plný text ve formátu PDF