Evaluación de la desmineralización química de semiantracitas provenientes de minas ubicadas en Boyacá y Santander (Colombia)
Evaluation of the chemical demineralization of semianthracites from mines located in Boyacá and Santander (Colombia)
Date
2019-05-04
2019-05-04
Author
Lugo Martinez, Wilmer Alexander
Avila, Huber
Vanegas, Marley
Albis Arrieta, Alberto Ricardo
Ardila, Marco
Metadata
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Abstract
Introduction− The non-energy use of high-range carbons (anthracite) has great potential in industries such as metallurgy and in the synthesis of new carbonaceous materials. However, before being used in these applications, they must be treated to remove impurities or unwanted compounds. Objective− To evaluate the efficiency of the process of chemical demineralization of semianthracites through the use of different acids varying the operating conditions of the process. Method− Two samples were chemically characterized: Boavita (B) and Capitanejo (C) from the Boyacá and Santander (Colombia) mines, respectively. Ash and mineral matter removal from the samples was evaluated using [HCl] = 5M, HF 40% and HCl 38% at two different reaction times (45 and 60 minutes) and two particle sizes of the material (250 and 500 µm). Results− The minimum values of ash content (bs) reached through the demineralization process for samples B and C, were 0.65 and 0.76% respectively, which were obtained with a particle size of 250 µm and 60 minutes of exposure in each of the acids used in this study. Conclusions− A smaller particle size increases the contact surface and improves the degree of demineralization, regardless of the time of exposure to acids. The efficiency of the chemical benefit shows yields in the reduction of silicates, aluminates and aluminosilicates to 100%, while for ferric minerals it is above 50%.
Para citar este documento con norma APA sexta edición utilice:
Lugo Martinez, W., Avila Rios, H., Vanegas Chamorro, M., Albis Arrieta, A., & Ardila Barragán, M. (2019). Evaluación de la desmineralización química de semiantracitas provenientes de minas ubicadas en Boyacá y Santander (Colombia). INGE CUC, 15(2). https://doi.org/10.17981/ingecuc.15.2.2019.05
Lugo Martinez, W., Avila Rios, H., Vanegas Chamorro, M., Albis Arrieta, A., & Ardila Barragán, M. (2019). Evaluación de la desmineralización química de semiantracitas provenientes de minas ubicadas en Boyacá y Santander (Colombia). INGE CUC, 15(2). https://doi.org/10.17981/ingecuc.15.2.2019.05
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