Extracting cobalt from lateritic overburden applying acid leaching technology
Keywords:
Lateritic overburden, acid leaching, cobalt extraction, kinetic modelAbstract
The effects of main technological parameters of the acid leaching process applied to the lateritic overburden for the extraction of cobalt was determined at laboratory scale to obtain the kinetic model. Following the full factorial design, the experiments were carried out including two levels and six parameters: temperature, leaching reagent, solid-fluid ratio, reducing agent content, particle size and agitation. The correlation coefficient for the input variables and cobalt extraction was 0,99. At maximum temperature, leaching reagent, fluid-solid ratio, reducing agent and Reynold with minimum particle size, 93 % of the cobalt contained in the overburden can be extracted.Downloads
References
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