A5045838287- Minerals Flotation and Separation Techniques
- Extraction and Separation Processes
- Metal Extraction and Bioleaching
- Mineral Processing and Grinding
- Advancements in Battery Materials
- Mining Techniques and Economics
- Mine drainage and remediation techniques
- Recycling and Waste Management Techniques
- Child Nutrition and Water Access
- Refrigeration and Air Conditioning Technologies
- Adsorption and Cooling Systems
- Building Energy and Comfort Optimization
- Electrochemical Analysis and Applications
- Water resources management and optimization
- Water-Energy-Food Nexus Studies
- Advanced Battery Technologies Research
- Optimization and Search Problems
- Electrical and Bioimpedance Tomography
- Metaheuristic Optimization Algorithms Research
Universidad Católica del Norte
2023-2024
University of Antofagasta
2012-2024
The aim of this study was to improve the dissolution copper sulfide ore composed mainly chalcopyrite (1.21 wt %) and bornite (0.54 using a pretreatment before leaching. effect on investigated different types Three sets experimental tests were performed (flask, reactor mini-column). Using design, three operational variables in evaluated: chloride concentration (20, 50 90 kg/t), repose time (7, 20 40 days) temperature (20 °C). A maximum 93% obtained when treated with kg Cl−/t ore, d °C flask...
Water scarcity is a critical issue worldwide and has become major constraint on socio-economic development. Seawater desalination an appealing adaptation option in regions with access to the coast; however, it sustainability challenges that require careful consideration. Two are: how manage spectrum of potential adverse social environmental impacts; provide fair sustainable water benefits region as whole. This paper presents participatory modelling framework designed support planning...
In Chile, the hydrometallurgical plants are operating below their capacity due to a depletion of copper oxide ores. To obtain suitable pregnant leach solutions (PLSs) for plants, leaching combining iodine-based oxidants and hydrogen peroxide in chloride–acid medium, at room temperature pressure were studied. Factorial experiments conducted evaluate effects different solution reagents (KI, NaIO3, NaCl, H2O2, H2SO4). The results showed that most influential variable is H2O2 concentration;...
Copper leaching presents an environmentally friendly alternative to traditional sulfide ore processing methods. This study investigates efficient process for copper concentrate, utilizing a solution of sulfuric acid (H2SO4) and potassium iodide (KI) in chloride medium (NaCl), enhanced by hydrogen peroxide (H2O2) at room temperature. A significant aspect this research was optimizing the KI concentration minimize sublimation into iodine gas (I2). Through experimental design, optimal dosages...
A study of the pretreatment stage and subsequent leaching a mixed copper ore with different chloride solutions containing iron was carried out. The first considered tests to decide best conditions. Two levels each factor were analyzed, 20 50 kg/t NaCl, 17 25 H2SO4, 0 Fe2(SO4)3·9.2H2O, Fe2SO4·7H2O, curing time 15 30 days. results showed significant effect NaCl on extraction, less found variation acid salts. second included column using solution 0.5 g/L Cu+2, 80 Cl−, 10 variable concentrations...