Results 121 to 130 of about 131,717 (256)

Proyecto de un sistema mecánico para la recepción, almacenamiento y extracción de carbón mineral usado como combustible industrial [PDF]

open access: yes, 2005
Tesis que trata acerca del desarrollo de un proyecto de un sistema mecánico para la recepción, almacenamiento y extracción de carbón mineral usado como combustible industrial. al inicio se da información general acerca del carbón mineral, sus propiedades
Moreno Altamirano, Patricio Daniel
core  

Chitosan‐Carbon Dot Composite Materials Form a Leaf Surface Barrier to Mitigate the Enrichment and Invasion of Nanoplastics: From Leaf Interface to Systemic Response

open access: yesAdvanced Science, EarlyView.
Foliar spraying of CS‐CDs can form a film on the leaves of Brassica rapa, effectively reducing the enrichment and absorption of PS in the leaves, while increasing the biomass and nutrient content of the plants. In addition, CS‐CDs can also enrich the interfoliar microbial community and activate the plant's own defense metabolic pathways.
Beibei Zhao   +6 more
wiley   +1 more source

Mineral-Imposed Accessibility and Microbial Processing Drive Contrasting Mineralization Regimes and Carbon Balance of MAOC

open access: yesSoil Systems
Wheat straw is a plant-derived substrate rich in cellulose, hemicellulose, and lignin and represents a major carbon input to agricultural soils. Mineral-associated organic carbon (MAOC) is the most stable soil carbon pool, yet how mineral structure ...
Xi Chen   +4 more
doaj   +1 more source

Depresión de carbón mineral en flotación usando nanopartículas de almidón como un nuevo reactivo eficiente y ambientalmente sostenible. [PDF]

open access: yes
En este trabajo se sintetizaron nanopartículas esféricas de almidón (5-10 nm) y se utilizaron para la depresión de carbón mineral en la flotación de un carbón sub-bituminoso (CSB) y un mineral carbonoso de bajo rango (MCBR).
Cruz-Gaona, Roel   +3 more
core  

Carbón activado con mayor dureza y compósitos carbón activado resinas fenólicas o epóxicas para el tratamiento de minerales auríferos [PDF]

open access: yes, 2013
Se establece la influencia de las condiciones de carbonización de cuesco de palmiste, respecto a la dureza del carbón producido. Se ensaya el proceso de atrición por medio del incremento en dureza y pérdida de carbón.
Guevara C., Alicia   +2 more
core  

The Third‐Generation Magnetic Super‐Stable Mineralizer: Complete Removal and Separation of Multiple Heavy Metal Pollutants

open access: yesAdvanced Science, EarlyView.
The 3rd‐generation magnetic super‐stable mineralizer M‐MgAl‐700 features a core‐shell structure, strong superparamagnetism, large surface area, and abundant oxygen defects. It achieves exceptional Cd(II) and As(V) mineralization capacities, reducing both pollutants in co‐contaminated water and soil to meet national standards.
Haoran Wang   +9 more
wiley   +1 more source

El carbón: origen, atributos, extracción y usos actuales en Colombia [PDF]

open access: yes, 2014
Ilustraciones y fotografíasEl objeto de esta recopilación es facilitar al estudiante el conocimiento de los diversos aspectos relacionados con el carbón que, generalmente, se encuentran dispersos en múltiples publicaciones, unas científicas y otras ...
Mejía Umaña, Luis Jorge
core  

Phase Fraction Modulation Enhances Li+/Na+ Diffusion Disparity in Spent LiFePO4 Cathodes for Efficient Lithium Extraction from Brine

open access: yesAdvanced Science, EarlyView.
A direct cascaded utilization strategy for spent LiFePO4 batteries efficiently extracts lithium from brine, embodying the “urban mining” concept. Phase fraction modulation revealed its significant impact on local bond lengths of crystal structure and the Li/Na diffusion energy barrier, identifying the best material (Li0.19FePO4) for lithium extraction.
Ruiqi Yin   +7 more
wiley   +1 more source

Multi-Criteria Decision Analysis of the Environmental and Economic Parameters for Mineral Carbonation of Steel Slags as a Carbon Capture, Utilization and Storage Materi

open access: yesJournal of Sustainable Development of Energy, Water and Environment Systems
Mineral carbonation, where steel slags react with carbon dioxide from flue gases to form stable carbonates and silicates, offers a potential carbon capture, utilization, and storage pathway with agricultural applications.
Ponnapat Watjanatepin   +9 more
doaj   +1 more source

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