2009
DOI: 10.1590/s0370-44672009000300006
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Aproveitamento econômico das lamas de ferro

Abstract: A mineração iniciou suas atividades lavrando depósitos de alto teor, sem preocupação em maximizar seu aproveitamento. Ainda hoje, milhões de toneladas de minerais úteis são descartados anualmente para as barragens de rejeitos. Nesse trabalho, foram realizados testes de deslamagem e flotação com lamas de minério de ferro, primeiramente em escala de bancada. Várias dosagens de coletor e depressor foram utilizadas. Os resultados promissores dos testes em escala de bancada levaram a testes em escala-piloto. Foi co… Show more

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Cited by 2 publications
(2 citation statements)
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“…become necessary to use low-grade iron ores, fines, and slimes to meet growing demands [2]. Therefore, the mining sector recognizes the need for improvement and seeks to determine new techniques that will improve the recovery and productivity of mineral deposits [3] with the ultimate aim of recovering a greater proportion of the metallic content and using previously discarded granulometric fractions [4].…”
Section: Resultsmentioning
confidence: 99%
“…become necessary to use low-grade iron ores, fines, and slimes to meet growing demands [2]. Therefore, the mining sector recognizes the need for improvement and seeks to determine new techniques that will improve the recovery and productivity of mineral deposits [3] with the ultimate aim of recovering a greater proportion of the metallic content and using previously discarded granulometric fractions [4].…”
Section: Resultsmentioning
confidence: 99%
“…The consumption of iron ore is concentrated in the steel industry (pig iron) and pelletizing plants (pellets) [2,3]. However, the iron ore beneficiation stages generate large amounts of industrial by-products or tailings [4]. Boscov [5] reported that for each ton of iron ore produced, on average, 0.5 ton of tailings are eliminated, a mass ratio between the final product and the tailings produced of 2:1.…”
Section: Introductionmentioning
confidence: 99%