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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]

open access: yesMolecules
In 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]

open access: yesCerâmica, 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

Nutrientes minerales y su relación suelo – planta – animal en praderas de Bolívar- Guaranda – Ecuador

open access: yesTesla Revista Científica, 2023
Los tejidos animales y vegetales contienen una gran variedad de cantidades y proporciones de elementos minerales indispensables para los procesos biológicos, en la presente investigación se determinaron las concentraciones de: calcio Ca, fósforo P ...
Oswaldo Amangandi Sinchipa   +3 more
semanticscholar   +1 more source

The Upper Cretaceous (Santonian-Maastrichtian) phosphate deposits in the west of the Neiva subbasin, Upper Magdalena Valley, Colombia

open access: yesBoletín 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

Resumen y análisis crítico del informe especial de la Agencia Internacional de la Energía: El Rol de los minerales críticos en la transición hacia energías limpias

open access: yesRevista de Metalurgia, 2021
Este artículo hace una revisión crítica del informe de la AIE titulado El rol de los minerales críticos en la transición hacia energías limpias. El objetivo principal de este informe es identificar los minerales y metales clave que podrían generar ...
Alicia Valero   +2 more
semanticscholar   +1 more source

Magnetic and gamma-ray spectrometric airborne geophysical data for investigating potential mineral resources and generating geoscientific knowledge in Colombia

open access: yesBoletín 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

Bolos intrarruminales con liberación controlada de minerales traza. Revisión

open access: yesRevista Mexicana de Ciencias Pecuarias, 2020
Los minerales traza son nutrientes esenciales para el mantenimiento de la vida, el crecimiento y la reproducción. Las deficiencias de minerales en rumiantes afectan las funciones fisiológicas y metabólicas que con frecuencia causan enfermedades.
Misael León-Cruz   +6 more
semanticscholar   +1 more source

Regional integration and 3D modeling of airborne geophysical data: Map of Geophysical Anomalies of Colombia for mineral resources, 2020 version

open access: yesBoletín 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

open access: yesMetals, 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

Chalcopyrite Leaching with Hydrogen Peroxide and Iodine Species in Acidic Chloride Media at Room Temperature: Technical and Economic Evaluation

open access: yesMetals, 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

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