STUDY OF THE ACID LEACHING TO PRESSURE OF THE FERRO-MANGANESE CONCRETIONS USING PYRE AS REDACTOR
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Abstract
The present work has as objective to study the acid leaching to pressure of a sample of the Ferro-manganese concretions, using pyre as laboratory scale reducer, establishing the possibility to extract Ni, Co, Cu and Mn. The kinetics of breakup of the metals, the influence of the partial pressure of oxygen and the acid- mineral relationship in the extraction of metals were study. Under the studied conditions the kinetics of breakup of the metals is relatively quick, reaching a high extraction to 60 minutes. An increase of the leaching time up to 120 minutes doesn't produce a significant change in the extraction of the metals. In pyre presence the partial pressure of oxygen influences in the breakup of the metals. Efficiency is reached of: 93% Ni, 90% of Cu, 95% for the Co and Mn to the pressure of 5 bars It was established the possibility of extracting Ni, Co, Cu and Mn of the sample of marine nodules with a high efficiency by means of the acid leaching to pressure, in pyre presence like reducer agent, using the following parameters: Under these conditions are obtained extractions of 93-98% of Ni; and 96-98% of Co, Mn and 90-93% of Cu. The studies of the leached pulp indicated that the same one didn't deposit well, for what additional studies are required to improve the rheological properties of the pulp.
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How to Cite
Aja Muñiz, R. (2019) “STUDY OF THE ACID LEACHING TO PRESSURE OF THE FERRO-MANGANESE CONCRETIONS USING PYRE AS REDACTOR”, INFOMIN, 6(1), p. 8‐20. Available at: https://infomin.edicionescervantes.com/index.php/i/article/view/48 (Accessed: 23 June 2026).
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