TECHNICAL AND SOCIAL PROGRAM

WEDNESDAY, OCTOBER 29

Pre-Conference Activities

Virtual Technical Course 1 | Free Access for Registered Conference Attendees

10:00-12:20

Thermodynamic Aspects of Highly Concentrated Aqueous Solutions

Rodrigo Yepsen, Assistant Professor, Universidad de Concepción, Chile

Pre-Conference Activities

Virtual Technical Course 2 | Free Access for Registered Conference Attendees

14:00-17:15

Chloride Leaching, Chalcopyrite Passivation, and Enhancement of Oxidative

Wenying Liu, Associate Professor, and Edouard Asselin, Professor, University of British Columbia, Canada

THURSDAY, OCTOBER 30

BALLROOM A & B

Virtual Technical Course 3 | Free Access for Registered Conference Attendees

10:00-13:15

Advances in Metal Dissolution from Solids and Waste: Leaching with Emerging Solvents

Pía Hernández, Walter Blanco, Loreto Córdova, Sonia Cortés, Monserrat Martínez and Mauricio Mura, Universidad de Antofagasta, Chile

MONDAY, NOVEMBER 03

BALLROOM A & B

Virtual Technical Course 4 | Free Access for Registered Conference Attendees

15:00-18:00

Leaching Alternatives for Sulfide Ores
Mario Vera, Lilian Velásquez y Álvaro Videla, Associate Professors, Pontificia Universidad Católica de Chile

TUESDAY, NOVEMBER 04

BALLROOM A

BALLROOM B

Session 1: Innovation and Process Improvement I
Moderator: Eugenia Castillo, Innovation and Development Superintendent, Minera El Abra, Freeport-McMoran, Chile

Session 2: Electrometallurgical Processes
Moderator: Lilian Velásquez, Associate Professor, Pontificia Universidad Católica de Chile

08:30

Daily Update

Daily Update

08:40

Optimizing SART Feasibility Through Stochastic Modeling and Economic Assessment in Gold and Silver Leach Operations

Oscar López, Pablo Bellalta, Guillermo Armendariz, Francis Gantley; BQE Water, Chile; Alessandro Navarra, Aurelien Nie-Rouquette and Javier Órdenes, McGill University, Canada

Permanent Electrolytic Cells for Enhanced Efficiency and Reliability in Copper Refineries
Robert Dufresne and Hamid Arabzadeh, Pultrusion Technique, Canada

09:00

Dynamic Soft-Sensors Applied to Estimate the Saturation in Copper Leach Solutions and Process Waters

Jesús Casas, Macarena Menéndez, Paulina González, Universidad Técnica Federico Santa María, Chile; and Aldo Fuentes, Universidad de Antofagasta, Chile

Standardization of Operational Practices in Pursuit of 99% HG Cathode Quality - EW Plant, SCM El Abra
Cristian Cortés and Héctor Bravo, Minera El Abra, Freeport-McMoran, Chile

09:20

Sustainable Mineral Extraction Through In-Place Recovery

Armineh Hassanvand, Peter Dare-Bryan, Orica, Australia; David Hunter, Core Resources, Australia; and Zhihe Wang, The University of Adelaide, Australia

Design and Characterization of a pH-Based Acid Mist Sensor for Electrowinning Processes
Gabriel Arévalo, AMCA Systems, Chile; and Rodrigo Hernández, Universidad de Chile

09:40

Skids Data Driven Decision Making (DDDM), SulfoLix, SCM El Abra

Jaime Choque, Manuel Martínez and Min Jae Chun, Minera El Abra, Freeport-McMoran, Chile

Monitoring Acid Mist in an EW Plant using Automatic Equipment and Particle Sensors: Is It Effective?
Hernán Conejeros and Pablo Cabello, Safetymin, Chile

10:00

Implementing Automated Inspection Systems in Copper Tankhouses
Belén Núñez and Quade Howald, Tecnologías Cobra, Canada

Development of Bimetallic Cathodes for EW and ER Processes with the Adaptability of New Materials to Chloride Leaching Processes
Carlos Díaz, ICL Cátodos, Chile; and Christian Pasten, Glencore Technology, Chile

BALLROOM A

BALLROOM B

Session 3: Innovation and Process Improvement II
Moderator: Susanna Vergara, Metallurgical Process Planning Specialist Engineer, Gabriela Mistral Division, Codelco, Chile

Session 4: Hydrometallurgy of Base Metals
Moderator: Pía Hernández, Department of Chemical and Process Engineering Chair, Universidad de Antofagasta, Chile

11:00

SisClever: High Purity and Enrichment in a Single Process for Multicomponent Mixtures

Ezgi Uslu, Marc Philippart de Foy and Andreas Pfennig, Department of Chemical Engineering, University of Liège, Belgium

Neodymium Leaching from NdFeB Magnets Using Citric and Lactic Acid-Based Deep Eutectic Solvents

Carlos Aragón, Fernando Sánchez, Katherine Moreno, Roxana Castro, Erick Bravo, Diana Endara and Ernesto de la Torre, Escuela Politécnica Nacional, Ecuador

11:20

Technical and Economic Evaluation of the Influence of Temperature in the Chloride Leaching Process
Osvaldo Vergara, Jaime Roco, Alberto Rojas, Cristóbal Mège and Luis Hidalgo, Worley, Chile

Palladium and Platinum Adsorption from Alkaline Glycine-Cyanide Solutions Using Activated Carbon and Ion-Exchange Resin
Caroline Rubina, Elsayed Oraby and Jacques Eksteen, Curtin University, Australia

11:40

Hydrodynamic Variables that Improve the Metallurgical Performance of Leaching Piles

Yuri Zepeda, José Aldana and Jorge Saenz-Diez, Compañía Minera Lomas Bayas, Glencore, Chile

Opportunities to Improve Heap Leaching Operations
Percy Mayta and Rosario Mayta, PM&H Consulting, Peru

12:00

Treatment of External Leached Ores in Compañía Minera Tres Valles
Eduardo Hasan and Lucas Poblete, Compañía Minera Tres Valles, Chile

Assessment of Copper Concentrate Processing Technologies: Flowsheet Development and Energy–Mass Balance Analysis Using the CESL Process as a Case Study

Ronny Winarko, Wenying Liu, David Dreisinger, Department of Materials Engineering, University of British Columbia, Canada; Brenton Atkins and Debbie Erasmus, South32, Australia

BALLROOM A

BALLROOM B

Session 5: New Materials and Technologies
Moderator: Fernando Parada, Associate Professor, Universidad de Concepción, Chile

Session 6: Leaching and SX in Chloride Medium I
Moderator: Leonor Ardiles, New Business Development Coordinator, BASF, Chile

13:50

Duplex Stainless-Steel Use for Hydrometallurgical Copper Production
Mikko Palosaari, Outokumpu Europe, Finland

Study on Gold Leaching in Chloride Solutions: Advances and Perspectives
Flavia Leiva and Tomás Vargas, Universidad de Chile

14:10

DFT Calculations and Experimental Evaluation of Core–Shell Nanoparticles for M²? Heavy Metal Removal

María Pía Arancibia-Bravo, Sergio Conejeros, Ronald Nelson, Angélica Carmona, Jonathan Cisterna, Dario Espinoza, Camila Heredia, Universidad Católica del Norte, Chile; Rodrigo Castillo, Pontificia Universidad Católica de Chile; Sean Davis and Neil Allan, University of Bristol, UK

Kinetics of Stibnite Dissolution in H2SO4-NaCl-Fe(SO4)1.5-O2

Rafael Padilla, Oscar Caro, Department of Metallurgical Engineering, Universidad de Concepción, Chile; and Dennis Vega, Nuton, Rio Tinto, Chile

14:30

Dissolution of Copper from Ore and Tailing with Emerging Solvents

Pía Hernández, Universidad de Antofagasta, Chile; Sonia Cortés, Vania Rojas, Andreína García and Humberto Estay, Universidad de Chile

Chloride Leaching for Primary Sulfides
Paulina Urrea, Sergio Ramírez, Iván Sánchez and Cristian Garrido, Fluor, Chile

14:50

Innovative and Sustainable Liquid Solution for Starch-Based Smoothing Agents in Cu Electrowinning Processes

Daniel Steuber, Rodrigo Urtubia, Cory Bernu, Benjamin Dau and Anthony Gerten, Chemstar, USA

Revisiting Chalcopyrite Chloride Leaching: Electrochemical Aspects

Carlos Otárola, Lilian Velásquez-Yévenes and Camila Méndez, Pontificia Universidad Católica de Chile

BALLROOM A

BALLROOM B

Session 7: Modeling and Process Control I
Moderator: Rodrigo Ruiz, Manager Leaching Demonstration, BHP, Chile

Session 8: Leaching and SX in Chloride Medium II
Moderator: Marcia Paschke, Solvent Extraction Superintendent, MolymetNos, Chile

15:50

Modeling and Simulation of Copper Sulfide Chloride-Based Heap Leaching

Bruno González, Mauricio Bravo, Aldo Muñoz, Santiago Montserrat, Tomás Vargas, Humberto Estay, Universidad de Chile; Pía Hernández, Universidad de Antofagasta, Chile; Wenying Liu, University of British Columbia, Canada; and Simón Díaz, Aalborg Universitet, Denmark

Ferric-Chloride Heap Leaching: Scaling Up the Ecowinning Process into CEMIN’s Planta Amalia Operation
Roberto Vergara, Victor Vidaurre, Hector Vilches, Jaime Simpson and Miguel Angel Sarria, Ecowinning Technologies, Chile

16:10

Innovation for a Healthy Working Environment in the Copper Industry

David Acevedo, Nancy Muñoz, Dagoberto Obreque, Rodrigo Zambra, SYENSQO, Chile; and Juan Carlos Sánchez, SYENSQO, Peru

Methodology for Determining Aeration Rate in Aeration Systems for Heap Leaching

Eduardo Flores, Boris Quinteros, MTEC Ingeniería, Chile; and Manuel Pizarro, ICL Cátodos, Chile

16:30

Dynamic Simulation Application for Design and Optimization of Lithium Derivative Production Processes

Eduardo Zavala, Alex Rey, Noelia Stuardo and Cristian Garrido, Fluor, Chile

Thermodynamic Analysis of Fe(III) Regeneration in Chloride Leaching Processes in Presence of Cu(II) / Cu(I)

Javiera Quiroz, Ignacio Rojas, Ricardo Miles, Gonzalo Montes-Atenas, Empírica, Chile; Ricardo Duque, Fernando Valenzuela and Carlos Basualto, Universidad de Chile

16:50

Stockpile Information Management System for Permanent Leaching and Its Application in Operational Control
Samuel Saldaña and Damarys Lagunas, Minera El Abra, Freeport-McMoran, Chile

Chlorinated Fluid Effects on Copper Sulfide Leaching: Review and Thermoplastic Approaches
Cristian Valverde, SAFI America, Chile

BALLROOM A & B

Inaugural Ceremony

18:00-19:00

Welcome Words

Mimy Mackenzie, Conference Manager, Gecamin, Chile
Fernando Valenzuela, Hydroprocess 2025 Program Director, Academic, Faculty of Pharmaceutical and Chemical Sciences, Universidad de Chile
Pía Hernández, Hydroprocess 2025 Co-Organizer, Chair, Department of Chemical and Process Engineering, Universidad de Antofagasta, Chile
Lilian Velásquez, Hydroprocess 2025 Co-Organizer, Academic, Department of Mining Engineering, Pontificia Universidad Católica de Chile
Fernando Parada, Hydroprocess 2025 Co-Organizer, Associate Professor, Departament of Metallurgical Engineering, Universidad de Concepción, Chile
Ronny Winarko, Hydroprocess 2025 Co-Organizer, Researcher, Department of Materials Engineering, The University of British Columbia, Canada

19:00-19:30

El Abra: Turning Resources into Growth and Driving a World-Class Hydrometallurgy

Boris Medina, Hydroprocess 2025 Chair, President of Minera El Abra, Freeport-McMoRan, Chile

WEDNESDAY, NOVEMBER 05

BALLROOM A

BALLROOM B

Session 9: Modeling and Process Control II
Moderator: Luis Salinas, Research Associate, Imperial College London, UK

Session 10: Leaching and Bioleaching of Sulfides I
Moderator: Eduardo Hasan, Director of Operations, Minera Tres Valles, Chile

08:30

Daily Update

Daily Update

08:40

Leaching of Precious Metals from Copper Anode Slime Using Deep Eutectic Solvent-Derived Mixtures

Walter Blanco-Vino, Pía Hernandez and Javier Ordoñez, Department of Chemical Engineering and Mineral Processes, Universidad de Antofagasta, Chile

Hydrogen Peroxide as an Oxidant for Ferric Regeneration in Copper Sulfide Leaching

Ronny Winarko, Wenying Liu and David Dreisinger, Department of Materials Engineering, University of British Columbia, Canada

09:00

Digital Optimization of the Leaching Process through Advanced Analytics and Data Management

Javiera Corrales, Magdalena Ribbeck, Casa Matriz, Codelco, Chile; Manuel Vargas, Francisca Neut, Gabriela Mistral Division, Codelco, Chile; and Luis Valdebenito, Duhovit, Chile

Philosophy of Acid Application in the Heap Leaching Pads at Sociedad Minera Cerro Verde
Alfredo Álvarez, Sociedad Minera Cerro Verde, Peru

09:20

Fluid Heating Service with Autonomous Monitoring, Control and Operation System
Felipe Aguilera and Claudio Barahona, GASCO, Chile

Recovery of Cobalt from Copper Flotation By-Products via Bioleaching: a Feasibility Study

Douglas Pino-Herrera, Catherine Joulian and Anne-Gwénaëlle Guezennec, Bureau de Recherches Géologiques et Minières (BRGM), France

09:40

Towards an Advanced Monitoring System for Leaching Heaps Based on Muon Radiography

Tancredi Botto, Muon Vision, USA; Adrian Casais, Ricardo Repenning, Muon Vision, Chile; and Samridha Kunwar, Muon Vision, Canada

Alkaline Leaching of Enargite: Dissolution, Oxidation, and UV Radiation Effects

Rodrigo Yepsen and Gustavo Castillo, Department of Metallurgical Engineering, Universidad de Concepción, Chile

10:00

PHREEQC as a Support Tool for Small-Scale Mining: Gold-Zinc Cementation
Francisco Carvajal, Sociedad Nacional de Mineria (SONAMI), Chile

Development of Ammonia Leaching Technologies for Sulfide Minerals

María Carolina Salhe, Casa Matriz, Codelco, Chile; Sebastián Malverde and Lilian Velásquez, Pontificia Universidad Católica de Chile

BALLROOM A & B

Plenary Session 1
Moderator: Pablo Carvallo, Director of Operations, Glencore, Chile

11:00-11:30

Full SaL: Transforming Copper Leaching
Marcela Schmidt, Principal Global Metallurgy and Processing, BHP

11:30-12:00

Leaching Innovation at Freeport-McMoRan

Cristian Caro, Leaching Innovation Manager, Freeport-McMoRan, USA

BALLROOM A & B

Plenary Session 2
Moderator: Vladimir Ancasi, Senior Metallurgist, Freeport-McMoran, USA

12:20-12:50

Hydrometallurgy at Codelco: Strategy, Innovation, and Sustainability

Syndy Barraza, Corporate Director of Hydrometallurgical Processes, Codelco, Chile

12:50-13:20

SQM International Lithium: Innovating in Resources and Technologies for the Future of Mobility

Osvaldo Yañez, Innovation and Development Manager, SQM Lithium International

BALLROOM A

BALLROOM B

Session 11: Leaching, IX and SX Processes
Moderator: Ricardo Duque, Director of Chloride Leaching, Radomiro Tomic Division, Codelco, Chile

Session 12: Leaching and Bioleaching of Sulfides II
Moderator: Pedro Condori, Metallurgical Processes Manager, Minsur, Peru

14:50

Strategic Change in the Treatment of Organic Quality - SX Plant, SCM El Abra

José Manuel Valenzuela, Juan Jara and Héctor Bravo, Minera El Abra, Freeport-McMoran, Chile

Development and Implementation Plan for Chloride Leaching of Secondary Copper Sulfides in Radomiro Tomic

Miguel Carrasco, Carlos Espinoza and Christian Hu, Radomiro Tomic Division, Codelco, Chile

15:10

State of the Art of Oximes with an Update on New Leaching Techniques

Alejandro Quilodrán, David Acevedo, Rodrigo Zambra, SYENSQO, Chile; and Juan Carlos Sánchez, SYENSQO, Peru

Latest Advances in Leaching Processes Linked to Sustainability and Circular Economy

Carlos Bustos, Universidad de Concepción, Chile; Dennis Vega-García, Nuton, Rio Tinto, Chile; and Luis Salinas-Farrán, Imperial College London, UK

15:30

Effect of the Use of the Irrigation Mantle Set on the Temperature Increase in the Copper Leaching Heap
Paulina Segura, Mantos Group, Chile

Agitated Ammonia Leaching of a Sphalerite Concentrate

Sanele Shabalala, Jochen Petersen and Thebe Mokone, Chemical Engineering Department, University of Cape Town, South Africa

15:50

Process Simulation for the Design and Evaluation of Leaching Heaps
Sergio Correa, Fernanda Vera, Iván Sanchez and Cristian Garrido, Fluor, Chile

Electrochemical Leaching of Spodumene

Catalina Wells, Robinson Constanzo, Nicolás Sotomayor, Gustavo Miranda, Osvaldo Yañez, Camila Silva, SQM Lithium International; Lilian Velásquez, Pontificia Universidad Católica de Chile; and Luis Beiza, Universidad Católica del Norte, Chile

16:10

Geopolymer Binders for Ultrafine Copper Tailings Heap Leaching

Mehri Shahhosseini and Ali Shahabi Azar, National Iranian Copper Industries Company, Iran

*AUTHOR UNABLE TO PRESENT.

Cobalt Recovery from Cobaltiferous Pyrite at the Dominga IOCG Deposit

Milton Rojas, Andes Iron, Chile; Laurie Mcdonnell, Lochie Patterson, Glencore Technology, Australia; and Christian Pasten, Glencore Technology, Chile

BALLROOM A

BALLROOM B

Session 13: Leaching Processes
Moderator: Adrián del Carpio, Technical Superintendent LESDE, Toquepala Unit, Southern Peru Copper, Peru

Session 14: Recycling of Metals and Alloys
Moderator: Damarys Lagunas, Leaching Coordination Engineer, Minera El Abra, Freeport-McMoran, Chile

17:10

Hydrometallurgical Innovation at Compañía Minera Tres Valles
Eduardo Hasan and Lucas Poblete, Compañía Minera Tres Valles, Chile

Sustainable Valorization of Green Technologies: Copper and Silver Recovery from Photovoltaic Cells

Sebastián Malverde and Lilian Velásquez, Department of Mining Engineering, Pontificia Universidad Católica de Chile

17:30

Extraction of Rare Earth Elements from an Ion Adsorption Clay Material

Prince Dube, Jochen Petersen and Megan Becker, Chemical Engineering Department, University of Cape Town, South Africa

Adsorption of Potassium Amyl Xanthate Using Slag from Lead-Acid Car Batteries
Consuelo Ortiz, Diana Endara Carlos Aragon, Escuela Politécnica Nacional, Ecuador

17:50

Gold Recovery from Refractory Ore via Deep Eutectic Solvents Pretreatment and Cyanidation

Christian Flores, Ernesto De La Torre and Carlos Aragón, Escuela Politécnica Nacional, Ecuador

Lead Leaching from Anodic Slime in Chloride Media

Yeimy Vivar, Universidad Central, Chile; Lilian Velásquez-Yévenes, Pontificia Universidad Católica, Chile

THURSDAY, NOVEMBER 06

BALLROOM A

BALLROOM B

Session 15: Lithium Hydrometallurgy
Moderator: Víctor Parra, Associate Professor, Universidad de Concepción, Chile

Session 16: Leaching and Bioleaching of Sulfides III
Moderator: Álvaro Videla, Associate Professor, Pontificia Universidad Católica de Chile

08:30

Daily Update

Daily Update

08:40

Overview of Membrane Technology Options in Direct Lithium Extraction (DLE) Processes
Humberto Estay, Advanced Mining Technology Center (AMTC), Universidad de Chile

Evaluation of Fine Grinding and Atmospheric Leaching for the Orisyvo Project

Francisco García, Guadalupe Alcaraz, Grupo Peñoles, Mexico; Laurie Mcdonnel, Marvin Muller, Glencore, Australia; and Christian Pasten, Glencore Technology, Chile

09:00

Understanding of chemical and catalytic mechanism of oxidative precipitation process applied for lithium-ion batteries metal recovery

Roberto Barbano, Emmanuel Billy and Gaëlla Frajer, CEA Liten, France; Hervé Muhr, Université de Lorraine, France

Large-Scale Primary Sulfide Gravel Leaching

Marcelo Saldaña, Imel Cubillos and Yonathan Molina, Chuquicamata Division, Codelco, Chile

09:20

Analysis of Energy and Water Balance in Traditional and Emerging Technologies for Lithium Extraction
Iván Sánchez, Luis Felipe Quintanilla, Trinidad Salas and Cristian Garrido, Fluor, Chile

Simplified Conceptual Model of Column Leach Data and Its Application to Geometallurgical Studies
Carlos García, TPConsultants, Chile; Andrés Tassara, Ricardo Miles, Javiera Quiroz, Ignacio Rojas, Catalina Martinez, Mauricio Romero and Gonzalo Montes-Atenas, Empírica, Chile

09:40

Metallic Lithium Obtaining by Non-Conventional Electrochemical Process

Robinson Constanzo, Osvaldo Yañez, Catalina Wells, SQM Lithium International; Tomás Vargas and J. Hidalgo, Universidad de Chile

Action Plans Implemented to Control Solution Migration in the Sulfolix Heap Leach Pad, SCM El Abra
David Campbell and Carlos Leins, Minera El Abra, Freeport-McMoran, Chile

10:00

Recovery of Lithium from Spent Lithium Iron Phosphate Batteries

Ndivhuwo Nyambeni, Volha Bazhko, E. Muller, G. Ndlovu, Mintek, South Africa; M. Ramakokovhu and J. Mulwanda, Tshwane University of Technology, South Africa

The Challenges of the World’s Fastest Leaching Process: Vat Leaching

Saddy Peroncini, Bryners Sarmiento and Peter García, Marcobre, Peru

*AUTHOR UNABLE TO PRESENT.

BALLROOM A & B

Plenary Session 3
Moderator: Sylvie Bouffard, Principal Leaching Development, BHP, Canada

11:00-11:30

Optimization of the Leaching Process through Kinetic Curves Using a Digital Decision-Support Tool
Pamela Velásquez, Senior Metallurgist Engineer Cathode Improvement, and Carlos Varas, Senior Operation Ripios, Minera Antucoya, Antofagasta Minerals, Chile

11:30-12:00

Inside Chloride Leaching: A Paradigm Shift in the Treatment of Sulfide Ores

Lilian Velásquez, Associate Professor, Department of Mining Engineering, Pontificia Universidad Católica de Chile

BALLROOM A & B

Plenary Session 4
Moderator: Camila Albornoz, Leaching and Extraction Manager, Chuquicamata Division, Codelco, Chile

12:20-12:50

Hydrodynamics, Metallurgy and Geomechanics for SmarterHeap Leach Design and Operation
Jorge Menacho, General Manager, De Re Metallica, Chile

12:50-13:20

We Have Got No Other Choice... Than Innovate

Guillermo Canchis, Hydrometallurgy Manager, Sociedad Minera Cerro Verde, Perú

BALLROOM A & B

Closing Ceremony

13:20-13:35

Acknowledgments and Closing Remarks

Mimy Mackenzie, Conference Manager, Gecamin, Chile
Fernando Valenzuela, Hydroprocess 2025 Program Director, Academic, Faculty of Pharmaceutical and Chemical Sciences, Universidad de Chile
Boris Medina, Hydroprocess 2025 Chair, President of Minera El Abra, Freeport-McMoRan, Chile

FOYER

Poster Session

Ionic Speciation and Thermodynamic Properties Modeling in CuSO4 + NaCl + H2O System at 298.15 K Using Pitzer Equations

Aldo Fuentes, Yecid Jiménez, Universidad de Antofagasta, Chile; Jesús Casas and Francisca Justel, Universidad Técnica Federico Santa María, Chile

Integrated Process of Perstraction and Antisolvent Membrane Crystallization to Produce Copper Sulfate Crystals

Bruno González, Michelle Quilaqueo, Lorena Barros, Humberto Estay, Universidad de Chile; and Simón Díaz-Quezada, Aalborg University, Denmark

A Hybrid Neural-Mechanistic Approach for Modeling a Heap Leaching Process
Mauricio Bravo-Gutiérrez, Humberto Estay, Universidad de Chile; and Luis Henríquez Vargas, Universidad de Santiago de Chile

Copper Concentrate Leaching Using Glycine as a Sustainable Alternative to Conventional Processes

Sonia Cortés, Brandon Cortés, Pía Hernández, Universidad de Antofagasta, Chile and Humberto Estay, Universidad de Chile

In-situ DES-DES Two-Phase Systems for Selective Separation of Strategic Metals

Camila Vallejos-Michea, Yecid Jimenez, Universidad de Antofagasta, Chile; André Nogueira, Sara Fateixa, João Coutinho and Nicolas Schaeffer, University of Aveiro, Portugal

Towards a Circular Economy: Metal Recovery from Photovoltaic Waste Using Ionic Liquids

Monserrat Martínez, Universidad Santo Tomás, Chile; Yecid Jiménez and Pía Hernández, Universidad de Antofagasta, Chile

Viscosity Modeling of Concentrated Brines in Two-Component Systems in the 298.15 to 313.15 K Temperature Range

Laura Spinelli, Andrés Soto-Bubert, Roberto Acevedo, Marco Alfaro and Mauricio Sepúlveda, Universidad San Sebastián, Chile

Functionalized Magnetic Nanoparticles for the Recovery of Nickel and Cobalt from Aqueous Solutions

Nicolás Baeza, Carlos Basualto, Universidad de Chile; Italo Moglia, Universidad Tecnológica Metropolitana, Chile; and José Gaete, Universidad Bernardo O’Higgins, Chile

Recovery of Cobalt and Nickel from Mine Tailings Samples Using Hydrometallurgical Processes

Marianela Castillo, Gonzalo Montes, Carlos Basualto and Fernando Valenzuela, Universidad de Chile

Metal Extraction Using a Type V Deep Eutectic Solvent

Karen Mena, Yecid Jimenez, Universidad de Antofagasta, Chile; João Coutinho and Nicolas Schaeffer, University of Aveiro, Portugal

Sustainable Microwave-Assisted Leaching of Heterogenite Cobalt Oxide Ore Using Sodium Metabisulfite

Beatia Siame, Cheryl Shaw, Ian Reaney, University of Sheffield, UK; Moses Siame, Luleå University of Technology, Sweden; and Joseph Kafumbila, First Quantum Minerals, Zambia

Recovery of Rare Earth Elements from Waste Electronic Display Screens Using Nanoparticles Functionalized with Organophosphorus Compounds

Javiera Catriñir, Carlos Basualto, Gonzalo Montes, Camila Jara, Joaquín Medina and Fernando Valenzuela, Universidad de Chile

Study on Copper Sulfide Adsorption via Xanthate Functionalized Magnetite Nanoparticles

Joaquín Medina, Javiera Catriñir, Camila Jara, Carlos Basualto, Universidad de Chile; and José Gaete, Universidad Bernardo OHiggins, Chile

Recovery of Gold from Printed Circuit Board Leaching Solutions Using Amine Functionalized Magnetite Nanoparticles

Camila Jara, Fernando Valenzuela, Gonzalo Montes, Javiera Catriñir and Carlos Basualto, Universidad de Chile

Galvanic Effects on Chalcopyrite Oxidation with Magnetite and Galena
Bredy Ochoa and Lyda La Torre, Universidad Nacional de San Antonio Abad del Cusco, Peru

Selective Removal of Copper and Zinc from Cobalt Solutions Using Ecofriendly Purolite S950 Ion Exchange Resin

Moses Charles Siame, Luleå University of Technology, Sweden

Analysis of Solid-Liquid Equilibrium Des Type-V for Metal Ion Extraction

Marcelo Aguilar-Bastos and Yecid Jiménez, Department of Chemical Engineering and Mineral Processes, Universidad de Antofagasta, Chile

Towards a Conceptual Model of Pyrite Surface Oxidation in Aerated Nitric Acid Media

Antonia Silva, Minerals and Metals Characterisation and Separation Research Group, Universidad de Chile; Marco Alsina, Faculty of Engineering, Universidad San Sebastián, Chile; and Gonzalo Montes-Atenas, Empírica, Chile

Semibatch Coprecipitation of Ni-Mn (1:3) Carbonate Precursor to Spinel LNMO Cathode for Li-ion Cells

Milton Arratia, Luis Rojas, Center for Advanced Research in Lithium and Industrial Minerals (CELiMIN), Universidad de Antofagasta Chile; and Mario Grágeda, Department of Chemical Engineering and Mineral Processes, Universidad de Antofagasta, Chile

Mineralogical Matrix and BX Model for Copper Bioleaching

Alison Menares, Francisca San Martín, Department of Mining, Metallurgy and Materials, Universidad Técnica Federico Santa María, Chile; and Sigde Mamani, Laboratory of Biotechnology, SigMatech, Chile

Electrochemical Alkalinization for Removing Mg and Ca from LiCl Brines Post DLE

Geovanna Choque, A. Gonzalez, Center for Advanced Research in Lithium and Industrial Minerals (CELiMIN), Universidad de Antofagasta, Chile; and Mario Grágeda, Department of Chemical Engineering and Mineral Processes, Universidad de Antofagasta, Chile

Degradation of PAX in Water with Hydrogen Peroxide and Persulfate: Kinetic Study and Optimization

Rodrigo Yepsen, Sofía Solar and Gustavo Castillo, Department of Metallurgical Engineering, Universidad de Concepción, Chile

Determination and Modeling of Thermodynamics and Physicochemical Properties of Single-Salts Borates Solutions

Brian Nolan, Francisca Justel, Department of Mining, Metallurgy and Materials, Universidad Técnica Federico Santa María, Chile; and Yecid Jiménez, Department of Chemical Engineering and Mineral Processes, Universidad de Antofagasta, Chile

Characterization of Cobalt-Bearing Pyrite Concentrate for Bioleaching Applications

Matías Veragua, Danny Guzmán, Department of Metallurgical Engineering, Universidad de Atacama, Chile; and Rómulo Oses, Regional Center for Research and Sustainable Development of Atacama, Universidad de Atacama, Chile

Hydrometallurgical Novel Process for Copper Extraction from Chalcopyrite Concentrate

Lilian Velásquez-Yévenes, Carlos Otárola, Camila Méndez and Sebastián Malverde, Department of Mining Engineering, Pontificia Universidad Católica de Chile

Recovery of Copper from End-of-Life Brake Pads through Hydrometallurgical Techniques

Miguel Farías and Lilian Velásquez-Yévenes, Department of Mining Engineering, Pontificia Universidad Católica de Chile

Evaluation of an Optimized Copper Electrodeposition Cell
Isaías Choque and José Cañi, Metallurgical Engineering Department, Universidad Nacional Jorge Basadre Grohmann, Peru

Hydrometallurgical Process for Copper Extraction from Chalcopyrite Ore: Scale Up Development

Lilian Velásquez-Yévenes, Andrés Molina and Sebastián Malverde, Department of Mining Engineering, Pontificia Universidad Católica de Chile

Understanding the Impact of Clay Minerals in Heap Leaching

Fernando Ortega, Miao Chen, School of Science, RMIT University, Australia; Jeremy Kieruj, David Molenaar, Warren Bruckard, CSIRO Mineral Resources, Australia; and Jochen Petersen, Department of Chemical Engineering, University of Cape Town, South Africa

Insights on the Use of Surfactants to Remove Acid Mist in Copper Electrowinning

Eduardo Matus, Minerals and Metals Characterisation and Separation Research Group, Universidad de Chile; and Gonzalo Montes-Atenas, Empírica, Chile

Production of Copper Foil from Non-Conventional Electrolyte Solutions

Gustavo Castillo, Francisco Foster, Luis Melo, Eugenia Araneda, Deparment of Metallurgical Engineering, Universidad de Concepción, Chile; and Álvaro Acevedo, Atacama Copper Foils, Chile