Fabiano M.F. Santos, Pablo S. Pina
The alkaline leaching kinetics of a zinc silicate ore assaying 34.1% Zn, 11.1% Fe and 22.9% SiO2 is studied in sodium hydroxide solutions. Speciation diagrams indicate zinc dissolution as [Zn(OH)4]2− and SEM analysis showed a progressive reduction in particle size during leaching which supports the shrinking particle model. The process is chemically controlled with an activation energy of 67.8±9.0 kJ/mol and reaction order with respect to NaOH determined as 1.44±0.46.
@article{4355ae68-e218-47d7-96da-b3eccef6cd0e,
title={The kinetics of zinc silicate leaching in sodium hydroxide},
author={Fabiano M.F. Santos and Pablo S. Pina},
year={2010},
language={pt}
}TY - JOUR TI - The kinetics of zinc silicate leaching in sodium hydroxide AU - Fabiano M.F. Santos AU - Pablo S. Pina PY - 2010 LA - pt ER -
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