DSpace Coleção:http://www.repositorio.ufop.br/jspui/handle/123456789/5122024-03-28T22:48:15Z2024-03-28T22:48:15ZNickel ore dispersion evaluation and consequences in flotation process.São José, Fábio deImbelloni, Alaine MoreiraNogueira, Francielle CâmaraPereira, Carlos Albertohttp://www.repositorio.ufop.br/jspui/handle/123456789/82082019-12-13T14:45:58Z2016-01-01T00:00:00ZTítulo: Nickel ore dispersion evaluation and consequences in flotation process.
Autor(es): São José, Fábio de; Imbelloni, Alaine Moreira; Nogueira, Francielle Câmara; Pereira, Carlos Alberto
Resumo: 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.2016-01-01T00:00:00ZFechamento de mina : aspectos técnicos, jurídicos e socioambientais.Flores, José Cruz do CarmoLima, Hernani Mota dehttp://www.repositorio.ufop.br/jspui/handle/123456789/45832019-06-24T15:48:07Z2012-01-01T00:00:00ZTítulo: Fechamento de mina : aspectos técnicos, jurídicos e socioambientais.
Autor(es): Flores, José Cruz do Carmo; Lima, Hernani Mota de2012-01-01T00:00:00Z