Search Results - "Francisca J. Justel"

Cupric and Chloride Ions: Leaching of Chalcopyrite Concentrate with Low Chloride Concentration Media by Cynthia M. Torres, Yousef Ghorbani, Pía C. Hernández, Francisca J. Justel, Matías I. Aravena, Osvaldo O. Herreros

“…In this paper, the effect of the cupric and chloride ions concentrations on copper dissolution from chalcopyrite concentrate was studied in acidified media…”
Get full text

Thermodynamic Model for the Design of a Process of Production of Copper Sulfate Pentahydrate from Copper Ores by Justel, Francisca J, Taboada, María E, Flores, Elsa K, Galleguillos, Héctor R, Graber, Teófilo A

“…In Chile, one of the ways in which small-scale mining industries sustain themselves is through the sale of copper ores to the state company ENAMI, which…”
Get full text

Joule Heating Effects in Electrokinetic Remediation: Role of Non-Uniform Soil Environments: Temperature Profile Behavior and Hydrodynamics by Cynthia M. Torres, Pedro E. Arce, Francisca J. Justel, Leonardo Romero, Yousef Ghorbani

“…Electrokinetic remediation is a process in which a low-voltage direct-current electric field is applied across a section of contaminated soil to remove…”
Get full text

Salting-out precipitation of NaCl, KCl and NH4Cl in mixtures of water and methanol described by the modified Pitzer model by Galvão, Alessandro C., Jiménez, Yecid P., Justel, Francisca J., Robazza, Weber S., Donatti, Fernanda S.

“…•Solubility of NaCl, KCl and NH4Cl in mixtures of water and methanol was determined.•The experimental data was correlated by the modified Pitzer model…”
Get full text

Thermodynamic study of the Cu-Na-H-SO4-Cl-HSO4-H2O system for the solubility of copper sulfate in acid seawater at different temperatures by Justel, Francisca J., Taboada, María E., Jimenez, Yecid P.

“…The objective of the present work is the thermodynamic study of the Cu-Na-H-SO4-Cl-HSO4-H2O system using the Pitzer model in the temperature range from 293.15…”
Get full text

Solid–Liquid Equilibrium and Copper Sulfate Crystallization Process Design from a Sulfuric-Acid–Seawater System in the Temperature Range from 293.15 to 333.15 K by Justel, Francisca J, Taboada, María E, Jiménez, Yecid P

“…The objective of this work is to determine experimentally the solubilities and the water activities for aqueous solutions of copper sulfate in seawater at…”
Get full text

Modeling of the solid-liquid equilibrium of NaCl, KCl and NH4Cl in mixtures of water and ethanol by the modified Pitzer model by Galvão, Alessandro C., Jiménez, Yecid P., Justel, Francisca J., Robazza, Weber S., Feyh, João Victor T.

“…The present work studies of NaCl, KCl and NH4Cl solubility in binary liquid solutions containing water and ethanol in the temperature range from 288.15 K to…”
Get full text

Process Design to Obtain Copper Sulfate Crystals Using Solid–Liquid Equilibrium of Copper Sulfate–Sulfuric Acid–Seawater by Justel, Francisca J., Taboada, María E., Jiménez, Yecid P., Graber, Teófilo A.

“…In Chile, there are several mining companies that crystallize copper sulfate pentahydrate using freshwater; however, it would be interesting to know the effect…”
Get full text

Physical properties of {Fe2(SO4)3 + PEG 4000 + H2O} solutions at high temperatures by Justel, Francisca J., Jimenez, Yecid P.

“…•Physical properties of the Fe2(SO4)3 + PEG 4000 + H2O system were measured.•The properties at 323.15, 333.15 and 343.15 K were correlated by the Othmer’s…”
Get full text

Corrigendum to “Measurement and modelling of water activities of the CuSO4 + poly(ethylene glycol) + H2O system in the temperature range from 303.15 to 333.15 K” [J. Chem. Thermodyn. 144 (2020) 106064] by Jiménez, Yecid P., Justel, Francisca J.

Get full text

Measurement and modelling of water activity, density, sound velocity, refractive index and viscosity of the Na2MoO4 + poly(ethylene glycol) + H2O system in the temperature range from 313.15 to 333.15 K by Justel, Francisca J., Villca, Grecia, Jimenez, Yecid P.

“…Thermodynamic and physical properties of water activity, density, sound velocity, refractive index and viscosity of unsaturated solutions of Na2MoO4 + PEG…”
Get full text

Water activity, density, sound velocity, refractive index and viscosity of the {(NH4)6Mo7O24 + poly(ethylene glycol) + H2O} system in the temperature range from 313.15 to 333.15 K: Experiment and modelling by Villca, Grecia, Justel, Francisca J., Jimenez, Yecid P.

“…•Water activities of the (NH4)6MO7O24 + PEG 4000 + H2O system were determined.•Water activities of the constituent binary systems were studied.•Temperature…”
Get full text

Speciation and thermochemical modeling of the ternary system CuSO4 – H2SO4 – H2O in the temperature range 273.15–373.15 K by Fuentes, Aldo N., Justel, Francisca J., Jimenez, Yecid P., Casas, Jesús M.

“…•The CuSO4 – H2SO4 – H2O system is vital for copper cathode and copper sulfate pentahydrate production.•Models for the ionic speciation and thermochemical…”
Get full text

Measurement and modelling of water activities of the {CuSO4 + poly(ethylene glycol) + H2O} system in the temperature range from 303.15 to 333.15 K by Jiménez, Yecid P., Justel, Francisca J.

“…•Water activities of CuSO4 + PEG 2000 + H2O system were studied from 303. 15 to 333.15 K.•Good agreement between experimental and correlated water activities…”
Get full text

Solubility of K2SO4, Li2SO4, and (NH4)2SO4 in mixtures of water and methanol at different temperatures: Experimental and application of the modified Pitzer model by Galvão, Alessandro C., Jimenez, Yecid P., Justel, Francisca J., Brejola, Agatha B.M., Mioto, Amanda T., França, Beatriz D., Robazza, Weber S.

“…•Solubility of K2SO4, Li2SO4, and (NH4)2SO4 in mixtures of water and methanol was determined.•The experimental data was correlated by the modified Pitzer…”
Get full text

Thermodynamic study of the Cu-Na-H-SO 4 -Cl-HSO 4 -H 2 O system for the solubility of copper sulfate in acid seawater at different temperatures by Justel, Francisca J., Taboada, María E., Jimenez, Yecid P.

Get full text