XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 2349
organic carbon was demonstrated. It was recognized early
on in the test work program, that due to the nature of the
organic carbon found in the majority of the ore feed, that
a carbon pre-flotation stage would be challenging to man-
age and would result in a significant degradation in overall
recovery performance.
Evaluation of various organic carbon depressants even-
tually resulted in the selection of a reagent that was success-
fully trialed and subsequently implemented in operation,
significantly improving the value of these carbon contain-
ing ores.
ACKNOWLEDGMENTS
Any search for a solution to a challenging problem typ-
ically involves a large number of contributors and engaged
and supportive stakeholders to allow for the resources
needed to develop and implement a solution. As such the
role of the operational metallurgy teams and the Newmont
metallurgical services teams are gratefully acknowledged,
with specific mention of the contributions by Zachery
Zanetell, William Cochran, Kelly Murphey, Juan Alcalde,
Hamer Arevalo, Julio Palacios, Leoncio Sevilla, Jennifer
Thogerson and Daniel Lopez.
REFERENCES
Baron, J., Dunn, C., Thogerson, J., Alcalde, J., Lopez, D.,
2024, “Advances in the Methodology for Assessing the
Influence of Carbonaceous Matter on Metallurgical
Response in Complex Ores,” XXXI International
Mineral Processing Congress Proceedings.
Fuerstenau, D.W., 1999, “The Froth Flotation Century,”
In Advances in Flotation technology (eds. B.K. Parekh
and J.D. Miller), SME, pp. 3–21.
Helm, M., Vaughan, J., Staunton, W.P., and Avraamides,
J., 2009, “An investigation of the carbonaceous com-
ponent of preg-robbing gold ores,” World Gold
Conference 2009, The Southern African Institute of
Mining and Metallurgy.
Kappes, R., Brosnahan, D., and Gathje, J.C., 2019, “The
Effect of Mineral Liberation on the Floatabilities of
Pyrite, Arsenopyrite and Arsenian Pyrite for Carlin
Trend Ores,” XXV International Mineral Processing
Congress Proceedings, 2913.
La Brooy, S.R., Wemyss, P., and Bowen, J.M., 2017,
“Practical Treatment Options for Carbonaceous
Preg-Robbing Gold Ores,” COM 2017 Proceedings,
ISBN:978-1-926872-36-0.
Miller, J.D., Wan, R.Y., Diaz, X., 2016, “Preg-Robbing Gold
Ores,” In Gold Ore Processing, Project Development
and Operations, 2nd ed. Edited by M.D. Adams.
Amsterdam: Elsevier.
Orlich, J.N., Gathje, J.C. and Kappes, R., 2009, “ The
Application of Froth Flotation for Gold Recovery at
Newmont Mining Corporation,” In Recent Advances
in Mineral Processing Plant Design (eds. D. Malhotra,
P.R. Taylore, E. Spiller and M. LeVier), SME,
pp. 190–196.
organic carbon was demonstrated. It was recognized early
on in the test work program, that due to the nature of the
organic carbon found in the majority of the ore feed, that
a carbon pre-flotation stage would be challenging to man-
age and would result in a significant degradation in overall
recovery performance.
Evaluation of various organic carbon depressants even-
tually resulted in the selection of a reagent that was success-
fully trialed and subsequently implemented in operation,
significantly improving the value of these carbon contain-
ing ores.
ACKNOWLEDGMENTS
Any search for a solution to a challenging problem typ-
ically involves a large number of contributors and engaged
and supportive stakeholders to allow for the resources
needed to develop and implement a solution. As such the
role of the operational metallurgy teams and the Newmont
metallurgical services teams are gratefully acknowledged,
with specific mention of the contributions by Zachery
Zanetell, William Cochran, Kelly Murphey, Juan Alcalde,
Hamer Arevalo, Julio Palacios, Leoncio Sevilla, Jennifer
Thogerson and Daniel Lopez.
REFERENCES
Baron, J., Dunn, C., Thogerson, J., Alcalde, J., Lopez, D.,
2024, “Advances in the Methodology for Assessing the
Influence of Carbonaceous Matter on Metallurgical
Response in Complex Ores,” XXXI International
Mineral Processing Congress Proceedings.
Fuerstenau, D.W., 1999, “The Froth Flotation Century,”
In Advances in Flotation technology (eds. B.K. Parekh
and J.D. Miller), SME, pp. 3–21.
Helm, M., Vaughan, J., Staunton, W.P., and Avraamides,
J., 2009, “An investigation of the carbonaceous com-
ponent of preg-robbing gold ores,” World Gold
Conference 2009, The Southern African Institute of
Mining and Metallurgy.
Kappes, R., Brosnahan, D., and Gathje, J.C., 2019, “The
Effect of Mineral Liberation on the Floatabilities of
Pyrite, Arsenopyrite and Arsenian Pyrite for Carlin
Trend Ores,” XXV International Mineral Processing
Congress Proceedings, 2913.
La Brooy, S.R., Wemyss, P., and Bowen, J.M., 2017,
“Practical Treatment Options for Carbonaceous
Preg-Robbing Gold Ores,” COM 2017 Proceedings,
ISBN:978-1-926872-36-0.
Miller, J.D., Wan, R.Y., Diaz, X., 2016, “Preg-Robbing Gold
Ores,” In Gold Ore Processing, Project Development
and Operations, 2nd ed. Edited by M.D. Adams.
Amsterdam: Elsevier.
Orlich, J.N., Gathje, J.C. and Kappes, R., 2009, “ The
Application of Froth Flotation for Gold Recovery at
Newmont Mining Corporation,” In Recent Advances
in Mineral Processing Plant Design (eds. D. Malhotra,
P.R. Taylore, E. Spiller and M. LeVier), SME,
pp. 190–196.