Hydrometallurgic treatment of gold disseminated in pyrite and arsenopyrite from flotation tailing

Authors

  • Angel Azañero Ortiz Teacher Professional Academic School of Metallurgical Engineering, Mayor de San Marcos National University.
  • Vidal Aramburú Rojas Teacher Professional Academic School of Metallurgical Engineering, Mayor de San Marcos National University.
  • Janet Quiñones Lavado Teacher Professional Academic School of Metallurgical Engineering, Mayor de San Marcos National University.
  • Luis Puente Santibáñez Teacher Professional Academic School of Metallurgical Engineering, Mayor de San Marcos National University.
  • Manuel Cabrera Sandoval Teacher Professional Academic School of Metallurgical Engineering, Mayor de San Marcos National University.
  • Victor Falconí Rosadio Teacher Professional Academic School of Metallurgical Engineering, Mayor de San Marcos National University.
  • Juan de Dios Quispe Valdivia Teacher Professional Academic School of Metallurgical Engineering, Mayor de San Marcos National University.
  • Oscar Francisco Cardoza Ramos Student Academic Professional School of Metallurgical Engineering, Mayor de San Marcos National University.
  • Kelly Jaimes Mallqui Student Academic Professional School of Metallurgical Engineering, Mayor de San Marcos National University.
  • Alberto Medina Student Academic Professional School of Metallurgical Engineering, Mayor de San Marcos National University.

DOI:

https://doi.org/10.15381/iigeo.v13i25.380

Keywords:

Oxidation, lixiviation, tailing flotation

Abstract

Tailings come from a mineral containing copper, silver and gold and recovery percentages of 90% of copper, 55 % of silver and 10% of gold from flotation. The study and mineralogic characteristic made to tail at 200 x magnification shows the presence of 54% of pyrite and 43% of gangue, does not detect gold, and has a chemical analysis of 3.74 gr/TM gold and 4.18 Oz/TC silver. The cyanidation tests made to the reground tailings at – 45 u give poor recoveries, 10% at most, reinforcing the hypothesis that the precious metal is in solid solution in the pyrite. Based on these results, cyanide lixiviation tests are performed using air and pyrometallurgical oxidation, in the first case 40% of cyanide dissolution is obtained trough air oxidation in alkaline media, and in the second case, 90% of gold is recovered trough roasting tests at 600° C, calcine wash to diminish the consumption of reactives followed by cyanidation by agitation.

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Published

2010-07-15

Issue

Vol. 13 No. 25 (2010)

Section

Artículos científicos

License

Copyright (c) 2010 Angel Azañero Ortiz, Vidal Aramburú Rojas, Janet Quiñones Lavado, Luis Puente Santibáñez, Manuel Cabrera Sandoval, Victor Falconí Rosadio, Juan de Dios Quispe Valdivia, Oscar Francisco Cardoza Ramos, Kelly Jaimes Mallqui, Alberto Medina

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AUTHORS RETAIN THEIR RIGHTS:

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b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Rev. Inst. investig. Fac. minas metal cienc. geogr.

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How to Cite

Azañero Ortiz, A., Aramburú Rojas, V., Quiñones Lavado, J., Puente Santibáñez, L., Cabrera Sandoval, M., Falconí Rosadio, V., Quispe Valdivia, J. de D., Cardoza Ramos, O. F., Jaimes Mallqui, K., & Medina, A. (2010). Hydrometallurgic treatment of gold disseminated in pyrite and arsenopyrite from flotation tailing. Revista Del Instituto De investigación De La Facultad De Minas, Metalurgia Y Ciencias geográficas, 13(25), 7-12. https://doi.org/10.15381/iigeo.v13i25.380