Mineralogical Characterization of Ni-Bearing Smectites from Niquelândia, Brazil
作者： Eliana Satiko Mano , Laurent Caner , Sabine Petit , Arthur Pinto Chaves , André Sampaio Mexias
DOI: 10.1346/CCMN.2014.0620406
关键词:
摘要: Nickel-lateritic ore is the most common source of nickel in Brazil. The Niquelândia deposit, located State Goias, one famous deposits due to large amounts associated with both oxidized and mainly silicated ores. terms ores are used specify two different formed exclusively by oxides silicate (clay) minerals, respectively. aim present study was characterize thoroughly identify Ni-bearing clay minerals their crystal chemistry support developing a better mineral-processing method or optimizing current improve Ni recoveries. X-ray diffraction, chemical analyses, scanning electron microscopy, Fourier transform infrared (FTIR) spectroscopy demonstrated that Ni-rich stevensite lesser extent Fe-rich montmorillonite. performed FTIR revealed octahedral positions, substituting for Mg Fe, which results significant layer-charge heterogeneity samples. This seems be responsible reduction recoveries during hydrometallurgical process.
harvard.edu
springer.com
archives-ouvertes.fr
geoscienceworld.org
fapesp.br
ingenta.com参考文章(37)
P. Andrieux, S. Petit, Hydrothermal synthesis of dioctahedral smectites: The Al-Fe3+ chemical series Part I: Influence of experimental conditions Applied Clay Science. ,vol. 48, pp. 5- 17 ,(2010) , 10.1016/J.CLAY.2009.11.019
Clay mineralogy : spectroscopic and chemical determinative methods Chapman & Hall. ,(1994) , 10.1007/978-94-011-0727-3
S. Petit, J . Caillaud, D. Righi, J . Madejová, F. Elsass, H. M. Köster, Characterization and crystal chemistry of an Fe-rich montmorillonite from Ölberg, Germany Clay Minerals. ,vol. 37, pp. 283- 297 ,(2002) , 10.1180/0009855023720034
A. Gaudin, O. Grauby, Y. Noack, A. Decarreau, S. Petit, Accurate crystal chemistry of ferric smectites from the lateritic nickel ore of Murrin Murrin (Western Australia). I. XRD and multi-scale chemical approaches Clay Minerals. ,vol. 39, pp. 301- 315 ,(2004) , 10.1180/0009855043930136
L. Calarge, B. Lanson, A. Meunier, M. L. Formoso, The smectitic minerals in a bentonite deposit from Melo (Uruguay) Clay Minerals. ,vol. 38, pp. 25- 34 ,(2003) , 10.1180/0009855033810075
D. Nahon, F. Colin, Y. Tardy, Formation and distribution of Mg, Fe, Mn-smectites in the first stages of the lateritic weathering of forsterite and tephroite Clay Minerals. ,vol. 17, pp. 339- 348 ,(1982) , 10.1180/CLAYMIN.1982.017.3.06
S Petit, D Righi, J Madejova, A Decarreau, Layer charge estimation of smectites using infrared spectroscopy Clay Minerals. ,vol. 33, pp. 579- 591 ,(1998) , 10.1180/CLAYMIN.1998.033.4.05
S. Petit, D. Righi, J. Madejová, Infrared spectroscopy of NH4+-bearing and saturated clay minerals: A review of the study of layer charge Applied Clay Science. ,vol. 34, pp. 22- 30 ,(2006) , 10.1016/J.CLAY.2006.02.007
Ulrich Hofmann, Richard Klemen, Verlust der Austauschfähigkeit von Lithiumionen an Bentonit durch Erhitzung Zeitschrift für anorganische und allgemeine Chemie. ,vol. 262, pp. 95- 99 ,(1950) , 10.1002/ZAAC.19502620114
A. Decarreau, D. Bonnin, Synthesis and Crystallogenesis at Low Temperature of Fe(III)-Smectites by Evolution of Coprecipitated Gels: Experiments in Partially Reducing Conditions Clay Minerals. ,vol. 21, pp. 861- 877 ,(1986) , 10.1180/CLAYMIN.1986.021.5.02