Dissolution kinetics of nickel laterite ore using different secondary metabolic acids
AUTOR(ES)
Sahu, S., Kavuri, N. C., Kundu, M.
FONTE
Brazilian Journal of Chemical Engineering
DATA DE PUBLICAÇÃO
2011-06
RESUMO
The dissolution kinetics of nickel laterite ore in aqueous acid solutions of three metabolic acids, i.e., citric acid, oxalic acid and acetic acid were investigated in a batch reactor individually. It was determined that experimental data comply with a shrinking core model. The diffusion coefficients for citric acid, oxalic acid and acetic acid were found to be 1.99×10-9 cm²/s, 2.59×10-8 cm²/s and 1.92×10-10 cm²/s respectively. The leaching ability of each acid was observed and it was found that oxalic acid was better than the other two.
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