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Experimental and Theoretical Study of the Synthesis of a Deep Eutectic Solvent Based on Protonated Caffeine, Ethylene Glycol, and ZnCl2 [PDF]
MoleculesIn this study, a deep eutectic solvent (DES) incorporating protonated caffeine (CafCl), ethylene glycol (EG), and zinc chloride (ZnCl2) was synthesized and characterized for the first time.
Laura Sofía Benavides-Maya +3 more
doaj +2 more sources
Quantitative firing transformations of a triaxial ceramic by X-ray diffraction methods [PDF]
Cerâmica, 2014 The firing transformations of traditional (clay based) ceramics are of technological and archeological interest, and are usually reported qualitatively or semiquantitatively.
M. S. Conconi +5 more
doaj +3 more sources
Boletín Geológico, 2022 De tiempo atrás se conoce que los fosfatos económicamente explotables en Colombia se encuentran en sucesiones sedimentarias marinas del Cretácico Superior (Cathcart y Zambrano, 1967; Mojica, 1987; Zambrano y Mojica, 1990).
Claudia L. Martín Rincón +5 more
doaj +1 more source
Boletín Geológico, 2021 The Servicio Geológico Colombiano has made available several airborne magnetometry and gamma-ray spectrometry datasets. The information was acquired in 15 blocks that cover approximately 520,000 square kilometers of Colombian territory, representing ...
Ismael Enrique Moyano Nieto +10 more
doaj +1 more source
Boletín Geológico, 2021 The Map of Geophysical Anomalies of Colombia for mineral resources, MAGC 2020 version compiles the geophysical information acquired, processed and interpreted by the Servicio Geológico Colombiano (SGC) since 2013.
Manuel Puentes +10 more
doaj +1 more source
Effects of Fe+2 and Fe+3 in Pretreatment and Leaching on a Mixed Copper Ore in Chloride Media
Metals, 2021 A study of the pretreatment stage and subsequent leaching of a mixed copper ore with different chloride solutions containing iron was carried out. The first stage considered pretreatment tests to decide the best conditions. Two levels of each factor were
María E. Taboada +4 more
doaj +1 more source
Optimización de parámetros para la extracción de elementos desde minerales en medios ácido [PDF]
, 2020 [SPA] Esta tesis doctoral se presenta bajo la modalidad de compendio de publicaciones. Actualmente, la gran minería del cobre chilena se encuentra frente a nuevos problemas y desafíos a superar.
Toro Villarroel, Norman Rodrigo
core +2 more sources
Metals, 2021 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 hydrometallurgical plants, leaching solutions combining iodine-based oxidants and ...
Germán A. Moraga +4 more
doaj +1 more source
Effect of impurities and sintering temperature on properties of MgO-CaZrO3 ceramic [PDF]
, 2013 CaZrO3 -MgO ceramics are useful as refractories in kilns for the cement production. One method of manufacture of such ceramics is by sintering from m-ZrO2 and dolomite MgCa(CO3 )2 mixtures. In this work electrofused m-ZrO2 grains (fraction
Aglietti, Esteban Fausto +2 more
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Structural Changes by Thermal Treatment up to Glass Obtention of P2O5-Na2O-CaO-SiO2 Compounds with Bioglass Composition Types [PDF]
, 2013 P2O5-Na2O-CaO-SiO2 compounds are the base of certain glass types. Glasses are solids obtained by fast cooling of melted mix of certain compounds.
Stábile, Franco Matías +1 more
core +1 more source