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Role of silicate phases during comminution of titania slag / P. Chris Pistorius in Minerals engineering, Vol. 22 N° 2 (Janvier 2009) 

Public ISBD [article]  in Minerals engineering > Vol. 22 N° 2 (Janvier 2009) . - pp. 182–189 Titre : Role of silicate phases during comminution of titania slag Type de document : texte imprimé Auteurs : P. Chris Pistorius, Auteur ; Hanlie Kotzé, Auteur Année de publication : 2009 Article en page(s) : pp. 182–189 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Comminution  Pyrometallurgy  Particle  size  Particle  morphology Index. décimale : 622 Industrie minière Résumé : Titania slag is the primary product of ilmenite smelting, and serves as a feedstock to the TiO2 pigment industry. The fine material (smaller than 106 μm in diameter) which is produced during milling of titania slag is enriched in some impurities, notably SiO2, Al2O3, K2O and CaO. Investigation of microstructures of solidified slags confirmed that these oxides partition to the silicate phases which form during final solidification. The presence of silicates on the surfaces of particles in milled slag supports the suggestion that the silicates contribute to fracture during crushing and milling. No significant macro-segregation was found in the slag ingots. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508001787 [article] Role of silicate phases during comminution of titania slag [texte imprimé] / P. Chris Pistorius, Auteur ; Hanlie Kotzé, Auteur . - 2009 . - pp. 182–189. Génie Minier Langues : Anglais (eng) in Minerals engineering > Vol. 22 N° 2 (Janvier 2009) . - pp. 182–189 Mots-clés : Comminution  Pyrometallurgy  Particle  size  Particle  morphology Index. décimale : 622 Industrie minière Résumé : Titania slag is the primary product of ilmenite smelting, and serves as a feedstock to the TiO2 pigment industry. The fine material (smaller than 106 μm in diameter) which is produced during milling of titania slag is enriched in some impurities, notably SiO2, Al2O3, K2O and CaO. Investigation of microstructures of solidified slags confirmed that these oxides partition to the silicate phases which form during final solidification. The presence of silicates on the surfaces of particles in milled slag supports the suggestion that the silicates contribute to fracture during crushing and milling. No significant macro-segregation was found in the slag ingots. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508001787