Decrease in environmental pollution by recovery of metals from the tails of the acid Moa process

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Published: Dec 1, 2020
Keywords:
Calcination sodium carbonate tails

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Osniel Reyes Padilla
Centro de Investigaciones para la Industria Minero Metalúrgica
Anel Hernández Garces
Universidad Tecnológica de la Habana José Antonio Echeverría
Anolan Díaz Fernández
Centro de Investigaciones para la Industria Minero Metalúrgica
Esteban Alfonso Olmos
Centro de Investigaciones para la Industria Minero Metalúrgica

Abstract

Caring for the environment is a task for everyone in the world today, as a result of the fact that, with existing industrialization, large companies exploit mineral resources, forgetting that it is nature that is providing them, returning contaminated material to it. The objective of this work is to reduce environmental pollution by recovering metals from the tails of the Moa acid process. In this work an experiment design was carried out that organized 11 experimental runs where different formulations of tail mixtures of the acidic Moa process with sodium carbonate were applied, where the determining variables were: Calcination temperature (300, 600 and 900 0C) , calcination time (30, 50 and 70 minutes) and sodium carbonate consumption of (8, 14 and 20 g). The response variables of this design were: Iron%, percentage of chromium, aluminum and sulfate extraction. The best results were obtained with 900 ° C, 30 minutes of calcination time and 20 g of sodium carbonate consumption, obtaining a maximum iron grade of 76.8% and extractions of 72% Chrome, 63% Aluminum and 71% sulfate. The consumption of sodium carbonate is 250 kg NaCO3 / t Tails.

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How to Cite
Reyes Padilla, O., Hernández Garces, A., Díaz Fernández, A. and Alfonso Olmos, E. (2020) “Decrease in environmental pollution by recovery of metals from the tails of the acid Moa process”, INFOMIN, 12. Available at: https://infomin.edicionescervantes.com/index.php/i/article/view/153 (Accessed: 2 July 2026).
Issue
Vol. 12 (2020): enero-diciembre
Section
Artículos Originales

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