Effect of milling capability in the kinetics of cyanudation for a preconcentrate of Au-Cu

Authors

  • Edwin Barzola Metallurgical Consultants
  • Brindel Barzola Metallurgical Consultants
  • Daniel Lovera Investigation Institute. Faculty of Geological, Mining, Metallurgical and Geographical Engineering
  • Vladimir Arias Investigation Institute. Faculty of Geological, Mining, Metallurgical and Geographical Engineering

DOI:

https://doi.org/10.15381/iigeo.v14i27.764

Keywords:

milling of minerals, Cyanide Kinetics, Gold recovery, Au-Cu minerals

Abstract

The pre-concentrate of Au-Cu from a gravimetric concentrator FALCON was subjected to different treatment processes in order to separately extract the copper and then the gold, without having success; after some attempts, it was achieved to recover the gold from the correlation of the milling capability and cyanidation, recovering very encouraging tenors through the application of models of milling batch proposed by Magne, Austin and Concha, and for the cyanidation, it was applied the Kinetic Nucleus Recessive Model with the following offered configuration: 1 -2α/3 – (1-α)2/3= 3.30*10-10(0.015 + 0.0006TM) *(TM)5.5124*t The concentrate sample with around 10 Oz. of gold per ton and 2.50% of copper, tested in a milling to 96% - 200 nets and leached with 0.4% of cyanide for 70 hours obtained recoveries higher than 95%, with an average consumption of 46 Kg. of cyanide per ton of mineral.

Downloads

Published

2011-07-15

Issue

Vol. 14 No. 27 (2011)

Section

Artículos científicos

License

Copyright (c) 2011 Edwin Barzola E., Brindel Barzola C., Daniel Lovera D., Vladimir Arias A.

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

AUTHORS RETAIN THEIR RIGHTS:

a. Authors retain their trade mark rights and patent, and also on any process or procedure described in the article.

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.

c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating the source of publication (the originator of the work, journal, volume, number and date).

How to Cite

Barzola, E., Barzola, B., Lovera, D., & Arias, V. (2011). Effect of milling capability in the kinetics of cyanudation for a preconcentrate of Au-Cu. Revista Del Instituto De investigación De La Facultad De Minas, Metalurgia Y Ciencias geográficas, 14(27). https://doi.org/10.15381/iigeo.v14i27.764