SciELO - Scientific Electronic Library Online

vol.61 issue3Static and kinetic tests to prevent the generation of acid mine drainage from coal mining with steel slagSedimentological characterization of the quaternary deposits in the region between Marília and Presidente Prudente, São Paulo State, Brazil author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Rem: Revista Escola de Minas

Print version ISSN 0370-4467On-line version ISSN 1807-0353


LIMA, Rosa Malena Fernandes; VASCONCELOS, João Antônio  and  SILVA, Gláucia Regina da. Anionic flotation of tailings of manganese ore. Rem: Rev. Esc. Minas [online]. 2008, vol.61, n.3, pp.337-342. ISSN 0370-4467.

The Brazilian processing flowsheet that is used to concentrate both the rich and complex manganese ores is constituted by size reduction and size classification. The particles with size below 0.106mm normally are discharged as waste. So it is very important for the mineral industry to develop flowsheets and processes in order to improve the global manganese recovery and to reduce the environmental impact with these wastes that are deposited on the land. In this work is presented an anionic froth flotation comparative study between two different anionic collectors (sodium oleate and soybean oil soap) and sodium silicate depressant to concentrate the silicate-carbonated manganese ore waste that was constituted mainly by rodocrosite, rodonite, espessartite, clinoclore, quartz, annite and flogopite minerals. It was observed that at pH 11 the SiO2 content in the feed (28.1%) was reduced by 11 and 8% for sodium oelate and soybean oil soap, respectively.

Keywords : Manganese ore; froth flotation; fatty acid.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License