2011
DOI: 10.1590/s0370-44672011000100012
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Espessadores no beneficiamento de minério de ferro

Abstract: Esse trabalho visa a comparar estudos de espessamento realizados em escala industrial com ensaios de sedimentação realizados em escala de bancada e propõe a utilização de fatores de correção nos métodos clássicos de dimensionamento de espessadores convencionais. A prática industrial, no âmbito do tratamento de minérios de ferro no Brasil, tem consolidado uma modificação substancial no método clássico de Kynch (com traçado de Talmage & Fitch), a qual consiste em adotar, para o traçado, a concentração mássica de… Show more

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“…The data obtained from the Coe and Clevenger method presented the greatest dispersion, with a significant number of results outside of the range of ±20.0% Bauxite pulp [7] Water treatment station sludge [11] Iron ore pulp [12][13][14][15][16] Mining waste [17] Biological sludge [18,19] Brine [18] Mineral suspensions [20] À13. 43 18.98 À0.75 σ = 3.47 3.0 À4 18.98 3.42 48…”
Section: Comparisons For the Coe And Clevenger Methodsmentioning
confidence: 99%
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“…The data obtained from the Coe and Clevenger method presented the greatest dispersion, with a significant number of results outside of the range of ±20.0% Bauxite pulp [7] Water treatment station sludge [11] Iron ore pulp [12][13][14][15][16] Mining waste [17] Biological sludge [18,19] Brine [18] Mineral suspensions [20] À13. 43 18.98 À0.75 σ = 3.47 3.0 À4 18.98 3.42 48…”
Section: Comparisons For the Coe And Clevenger Methodsmentioning
confidence: 99%
“…Talmadge and Fitch 0.97 60.86 Iron ore pulp [15] CaCO 3 pulp [21] Mineral coal waste [22] Water treatment station sludge [23] À15.45 Iron ore pulp [13] Limestone pulp [24] À24.31 Bauxite pulp [7] Water treatment station sludge [26] À8.65 absolute error. The relative errors were within the À36.40% to 0.74% range, with a À19.00% average relative error.…”
Section: Comparisons For the Coe And Clevenger Methodsmentioning
confidence: 99%