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Synthesis of ferronickel slag-based geopolymers / Ioannis Maragkos in Minerals engineering, Vol. 22 N° 2 (Janvier 2009) 

Public ISBD [article]  in Minerals engineering > Vol. 22 N° 2 (Janvier 2009) . - pp. 196–203 Titre : Synthesis of ferronickel slag-based geopolymers Type de document : texte imprimé Auteurs : Ioannis Maragkos, Auteur ; Ioanna P. Giannopoulou, Auteur ; Dimitrios Panias, Auteur Année de publication : 2009 Article en page(s) : pp. 196–203 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Fine  particle  processing  Pyrometallurgy  Wasteprocessing Index. décimale : 622 Industrie minière Résumé : This paper deals with the synthesis of geopolymers utilizing ferronickel slag as raw material. The utilized slag is produced in the Greek plant LARCO during the pyrometallurgical treatment of laterites for the production of ferronickel, specifically at the step of the reductive smelting in electric arc furnaces. The performed work includes the optimization of the slag-based geopolymeric system through the study of the effect of the synthesis parameters on the mechanical properties of the produced materials. The structure of geopolymers was determined with X-ray diffractometry (XRD), Fourier-transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The obtained results showed that the ferronickel slag is an excellent raw material for the production of inorganic polymers using the geopolymerization technology. The materials produced under the optimum synthesis conditions were compact and rigid and presented high compressive strength (118 MPa), as well as extremely low water absorption (0.7–0.8%). DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508001817 [article] Synthesis of ferronickel slag-based geopolymers [texte imprimé] / Ioannis Maragkos, Auteur ; Ioanna P. Giannopoulou, Auteur ; Dimitrios Panias, Auteur . - 2009 . - pp. 196–203. Génie Minier Langues : Anglais (eng) in Minerals engineering > Vol. 22 N° 2 (Janvier 2009) . - pp. 196–203 Mots-clés : Fine  particle  processing  Pyrometallurgy  Wasteprocessing Index. décimale : 622 Industrie minière Résumé : This paper deals with the synthesis of geopolymers utilizing ferronickel slag as raw material. The utilized slag is produced in the Greek plant LARCO during the pyrometallurgical treatment of laterites for the production of ferronickel, specifically at the step of the reductive smelting in electric arc furnaces. The performed work includes the optimization of the slag-based geopolymeric system through the study of the effect of the synthesis parameters on the mechanical properties of the produced materials. The structure of geopolymers was determined with X-ray diffractometry (XRD), Fourier-transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The obtained results showed that the ferronickel slag is an excellent raw material for the production of inorganic polymers using the geopolymerization technology. The materials produced under the optimum synthesis conditions were compact and rigid and presented high compressive strength (118 MPa), as well as extremely low water absorption (0.7–0.8%). DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508001817