Current Research
I am currently pursuing my Postdoc at McGill University in the Mineral Processing research group. My research topic is on the application of gas dispersion optimization to industrial flotation operations, with a focus on the development and application of techniques to measure key gas dispersion and hydrodynamic indicators.
Curious about my research or open to collaborating? Let’s talk.
Publications

The role of measured froth zone water content in flotation froth stability and entrainment behaviour
Mark R. Lepage, Luke Visconti, Jeffery Opoku, Kristian E. Waters
Canadian Metallurgical Quarterly – 2025

Advancements in Gas Dispersion Audits for Flotation Process Optimization Using the C.H.E.P. Device
Olivier Gravel, Mark R. Lepage
Canadian Mineral Processors Conference – 2025

Integrated portable gas dispersion device
Jeffery Opoku, Mark R. Lepage, Raymond Langlois, Kristian E. Waters
Canadian Metallurgical Quarterly – 2024

Conductivity measurements of the Froth Zone in Flotation
Mark R. Lepage
Ph.D. Thesis – McGill University – 2023

Investigation of particle motion in a dry separation fluidized bed using PEPT
Meng Zhou, Ozan Kökkılıç, Daryell Boucher, Mark R. Lepage, Thomas W. Leadbetter, Raymond Langlois, Kristian E. Waters
Minerals – 2023

Investigation of the effect of electrolytes on the breakaway of air bubbles at an underwater capillary using high-speed cinematography and passive acoustic techniques
Pengbo Chu, Ronghao Li, Mark R. Lepage, Kristian E. Waters
Minerals – 2022

Using top-of-froth conductivity to infer water overflow rate in a two-phase lab-scale flotation column
Mark R. Lepage, Cesar O. Gomez, Kristian E. Waters
Minerals – 2022

Vertical water content profiles of two-phase flotation froths
Mark R. Lepage, Luke Visconti, Odile Liboiron-Ladouceur, Kristian E. Waters
Minerals Engineering – 2020

Recovery of niobium minerals from ultra-fines by gravity and magnetic separation
Ronghao Li, Chris Marion, Mark R. Lepage, Niel A. Rowson, Ozan Kökkılıç, Kristian E. Waters
Physical Separations 19′ – 2019

Characterization and development of an electrical conductivity flow cell for the axial continuous phase fraction profiling of bulk multiphase flow
Mark R. Lepage, Luis Vinnett, Cesar O. Gomez, Odile Liboiron-Ladouceur, Kristian E. Waters
Measurement Science and Technology – 2019

Measuring flotation water overflow using a froth zone conductivity sensor and froth camera
Mark R. Lepage, Luis Vinnett, Cesar O. Gomez, Kristian E. Waters
25th World Mining Congress – 2018

Measuring flotation water overflow using an in-situ conductivity sensor
Mark R. Lepage, Kirstian E. Waters
Topical Issues of Rational Use of Natural Resources – 2017

Effect of gas rate and impeller speed on bubble size in frother-electrolyte solutions
Joshua Sovechles, Mark R. Lepage, Bailee Johnson, Kristian E. Waters
Minerals Engineering – 2016

Component analysis of seawater and MIBC and their effects on flotation bubble size
Mark R. Lepage, Kirstian E. Waters
Topical Issues of Rational Use of Natural Resources – 2016
Want to get in touch?
Let’s talk about what you’re passionate about.