Extractive Metallurgy

Metallurgy | Pyrometallurgical Modelling | Piloting and Test Work

We focus on providing support for both the long-term strategic growth and shorter-term plant operational needs of companies requiring expertise in extractive metallurgy.


XPS Extractive Metallurgy is a team of skilled pyrometallurgists and hydrometallurgists based in Sudbury, Ontario, Canada. We complement our skills with the knowledge of our XPS partners in the fields of process control, materials technology and process mineralogy.


The group is well equipped to address your metallurgical needs through on-site plant support, process modelling and hydrometallurgical and pyrometallurgical testwork on both a laboratory and pilot plant scale. Services are offered at a competitive price-to-quality ratio.


We can reduce risk and add value to your project or operation through:

  • On-site plant support for smelters and refineries, e.g. emission abatement strategies (SO2 etc.), raising throughput capacity, impurity tolerance levels and improving product/metal quality, refractory performance, metallurgical audits, benchmarking, and de-bottlenecking.
  • Laboratory and/or pilot scale testwork incorporating atmospheric or pressure leaching, fluid bed roasting or smelting, and associated unit operations, to recover base metals from sulphide or oxide ores.
  • Flowsheet and process design criteria development for new projects or plant expansions.
  • Process simulation/modelling for new or existing metallurgical plants, using Factsage®, Metsim®, ARENA®, COMSOL®Venture style analysis studies for business/custom feed opportunities.
  • Venture style analysis studies for business/custom feed opportunities.
  • Treatment of Refractory Gold Ores.  

Whether the service we provide is small bench scale testing, large scale pilot testing or venture style project analysis, we strive to utilize best available technology and proven procedures to add value to and reduce any risks associated with your project.





# Title Download
From Drill Core to Metal - A Multi-Disciplined Approach to Flowsheet Development by M.Muinonen, D.Fragomeni (XPS) Download Preview
From Drill Core to Metal - A Multi-Disciplined Approach to Flowsheet Development, by M. Muinonen and D. Fragomeni (XPS) Download Preview
Mineralogical Study of Arsenic-bearing Species in Cu Roaster Calcines to Aid Process Development, by XPS Download Preview
Pilot Smelting of Ring of Fire Chromite Ores, by XPS and KWG Resources Download Preview
Thermal and Mineralogical Analysis to Resolve Complex Sinter Feedstock Issues Download Preview
COM2011 XPS_X_Ni Integrated Process Modelling of Ni-Cu Sulphide Treatment at X_Ni's Sud_Smelter by Tripathi, et Al Download Preview
COM2011 XPS_Mintek Cobalt from Slag - Lessons in Transition from Lab to Operations by Barnes (XPS) and Jones (Mintek) Download Preview
COM2011 XPS_Barrick Roasting Renaissance - Triple Refractory Ores by Barnes (XPS) and Stubina (Barrick) Download Preview
Overview of Chloride Metallurgy - Process Technology Developoment by E. Peek (XPS) Download Preview
TMS 2011 Segregation Roast XPS Download Preview
Autoclave Technology - Applications for Sulphide Concs and Laterite Ores, by Barnes (XPS) Download Preview
A New Toolbox for Converter Aisles by P. Mackey and P. Coursol (XPS) Download Preview
COM2009 Pyrometallurgy of Nickel 'Short Course' Speech - Modern Process Control, by P. Nelson Download Preview
Energy Consumption in Cu Smelting - June 6th 2010, by Coursol-Mackey-Dias Download Preview
Role of Pilot Plants (EMC 2009 Innsbruck) by Barnes Mackey Alvear Download Preview

Mika Muinonen
General Manager
Process Metallurgy
Phone: +1 705 699 3400 ext. 3490
send email


Graeme Goodall
Superintendent Extractive Metallurgy
Phone: +1 705 699 3400 ext. 3413
send email