The Heap Leach Solutions 2022 Advisory & Technical Committees would like to extend a huge THANK YOU to everyone who attended, sponsored, exhibited, and supported #HLS22!
Heap Leach Solutions 2022 welcomed heap leach practitioners, researchers, and industry representatives from all over the world. Across three days, we delved into innovative presentations on project development, operations, and closure in heap leaching. Keynote speakers shared insights on industry challenges, new technologies, and sustainable practices, offering diverse perspectives on the future of metal leaching.
#HLS22 focused on the below themes:
Revisit the 2022 Full Proceedings
Download Individual Papers
Chapter 1 - Project Development
- Project Planning and Verification Using METSIM® Simulation Software at Brazilian Nickel’s Piauí Nickel Project │ Alex Holtzapple, Anne Oxley, Omar Caceres and Carlos Fonseca
- Metallurgical Considerations for Modeling the Recovery of Gold from Heap Leach Facilities │ R. Nick Gow, B. Carlson, B. Fetter, A. House and B. Garcia
- Bentonite-Polymer Composite Geosynthetic Clay Liners for Heap Leach Liners │ Craig H. Benson, Yu Tan, Jimmy Youngblood and Sabrina L. Bradshaw
- At the Limit of Overliner Material Properties Applied for High-Capacity Heap Leach Projects │ Andrés León Saavedra and Javiera Espinoza Montoya
- New Projects: Review of Lone Star Leach Pad Design, Construction, and Operation │ Philippa Killian
- Statistical Functions for the Development of Heap Leach Pads Cost Estimation │ Franco Sánchez, Axel Castro and Nancy Tafur
Chapter 2 - Operations
- The Effects of Haul Roads on Ore Compaction and Wettability of Leach Pads │ Dale F. Rucker, Brian Cubbage, Moira Poje and Shawn Calendine
- Wireless Heap Leach Monitoring and Control │ Larry Bolton
- Ore Permeability and Blending Evaluation to Optimize Leach Performance │ Jason Keller, Tzung-mow Yao, Michael Milczarek, Vince Lofftus and Stuart Myrhow
- Geotechnical Evaluation of Properties and Liquefaction Potential Using CPTu for Heap and ROM Leaching Facilities │ Guillermo Torres, Sergio Pinos, Camilo Soto and Ricardo Moffat
- Process Update on Dynamic Heap Bioleaching of a Black Schist Ore │ Ville Heikkinen, Antti Arpalahti and David Garcia-Balbuena
- Geotechnical Engineering: The Observational Method Applied to Monitoring of Slopes during Operational Activities for Heap Leach Pad Facilities │ Michael Grass, Patrick Nketia and Christopher Jester
- See the Metal You Left Behind: In-Heap Sensors for Monitoring Fluid Flow │ Steven Slupsky and George McIsaac
- Process Operations Considerations at Victoria Gold Corp.’s Eagle Gold Mine │ Jeffrey Winterton and Alex Martin
- Utilizing Online Cyanide Analyzers in Heap Leach Operations │ Sileymane Lo, Pam Moyo and Roy Norcross
- Changes in Water Management during Heap Leach Lifetime in Heavy Rainfall Sites │ Jeymy Huamanyauri, Thalia Ordinola, Daniel Pulcha and Carlos Iparraguirre
- Crushed Leached Ore Characterization, Response, and Liquefaction Potential │ Oscar Meza, Franklin R. Olaya and Denys Parra
Chapter 3 - Hydrology and Sustainability
- Liquefaction in Heap Leach Piles – A Primer │ Mark E. Smith and Krishna P. Sinha
- Pulp Agglomeration Process and Application for Gold and Silver Heap Leach Operations │ Caleb Cook and Timothy Scott
- A Laboratory and Numerical Approach to Assess Ore Consolidation and Solution Distribution during the Ramp-up Period │ Tzung-mow Yao, Ángel D. Briseño Arellano, Aayush Piya, Jason Keller and Michael Milczarek
- Mining Practice and Capacity Building Based on ESG Principles │ Chaitna Sinha, Krishna P. Sinha and Mark E. Smith
- Accounting for Complexity in Draindown Modeling for Heap Leach Closure │ Iozsef Miskolczi
Chapter 4 - Operations and Design
- Gold Leaching Problems and Solutions at the Altan Tsagaan Ovoo Mine │ Batdorj Erdenebat, Batjargal Bayarsaikhan and Kherlen Tumurtogoo
- Column Experiments to Assess Consolidation Behaviour at Different Initial Irrigation Rates in Copper Heap Leaching │ Ángel D. Briseño Arellano, Tzung-mow Yao, Michael Milczarek and Mark Brusseau
- Modeling the Iodine-Assisted Chalcopyrite Leaching in Ferric Sulfate Media in Response to Operating Parameters in Heap Leaching │ Ronny Winarko, Wenying Liu, David B. Dreisinger and Akira Miura
- Updated Statistics on Leaks per ha, Based on 22 M m2 ELL Surveys Conducted in Six Different Countries over the Last Decade │ Silverio Prota, Chris Baldyga, Juan Cabrera and Mauricio Campos
- New Excess Flow Valves for Preventing Side Slope Washouts │ Zachary Felkey
- Altan Tsagaan-Ovoo Mine’s Mine Closure Concept Plan and Results of the Trials and Research │ Gunbat Gundensambuu, Munkhjin Ganbaatar, Nyambayar Ganbold, Battulga Enkhbat and Khangai Erdenebileg
- Governance and Management: Using KPI(s) and Early Indicator Dashboard to Manage and Communicate Heap Leach Pad Facility Performance │ Patrick Nketia and Omololu Ogunseye
Chapter 5 - Engineering Design, Geotechnical Track, and New Designs
- On the Use of Buried Pipes in Heap Leach Facilities │ Bryan Ulrich
- Criteria to Estimate and Use Peak and Residual Shear Strength of Interfaces in Heap Leach Pads Design │ Waldo Huallanca and Elard Quispe
- CPT-Based Liquefaction Potential Assessment of Leached Ore Exhibiting Microstructure │ Ronald Landa, Gerson Urbina and Denys Parra
- First Radiographic Characterization of an Active Leaching Heap │ Tancredi Botto, Ricardo Repenning and Nicolás De Beer
- IXOS® Technology – Case Study Details Excellent Results for Hydrometallurgical Precious Metals and Base Metals Recovery │ Nicol Nuku Newton, Sherman McGill and Jon Gluckman
- The Piauí Nickel Heap Leach Commercial Plant │ Anne Oxley, Omar Caceres and Mark E. Smith