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Erschienen in: Metallurgical and Materials Transactions B 2/2016

06.01.2016

Nickel Ore Dispersion Evaluation and Consequences in Flotation Process

verfasst von: Fábio de São José, Alaine Moreira Imbelloni, Francielle Câmara Nogueira, Carlos Alberto Pereira

Erschienen in: Metallurgical and Materials Transactions B | Ausgabe 2/2016

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Abstract

Nickel ore dispersion before flotation using different reagents was investigated on a bench scale to improve metallurgical recovery and selectivity. The nickel ore had a content of 0.8 pct nickel and 14.5 pct MgO. A positive linear correlation between MgO and Ni was found. Carboxy methyl cellulose, both pure and combined with Na2CO3, was the best dispersant used. The most efficient collector was potassium amyl xanthate combined with mercaptobenzothiazole, and the addition of xanthate was decisive for this good result because it is normally more stable in the pH range used in the tests. A pH change from 7 to 9 resulted in a metal recovery increase of 49.3 pct, together with an increase of 6.25 pct of MgO in the concentrate.

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Metadaten
Titel
Nickel Ore Dispersion Evaluation and Consequences in Flotation Process
verfasst von
Fábio de São José
Alaine Moreira Imbelloni
Francielle Câmara Nogueira
Carlos Alberto Pereira
Publikationsdatum
06.01.2016
Verlag
Springer US
Erschienen in
Metallurgical and Materials Transactions B / Ausgabe 2/2016
Print ISSN: 1073-5615
Elektronische ISSN: 1543-1916
DOI
https://doi.org/10.1007/s11663-015-0562-0

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