Results 81 to 90 of about 215,200 (314)
Investigation of the use of ammonium acetate as an alternative lixiviant in the leaching of malachite ore [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2013 The solutions containing ammonia allow for selective leaching of the copper from a copper ore. In this study, the leaching and kinetics of malachite ore were examined using ammonium acetate solutions as an alternative lixiviant.
Künkül Asım +2 more
doaj +1 more source
Low leach rate glasses for immobilization of nuclear wastes [PDF]
, 1980 Improved defense and commercial waste glass have about one order of magnitude lower leach rates at 90/sup 0/C in static deionized water than reference glasses. This durability difference diminishes as the leaching temperature is raised, but at repository temperature less than 150/sup 0/C, the improved compositions would have considerable advantages ...
Chick, L. A., Buckwalter, C. Q.
openaire +2 more sources
From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts
Advanced Functional Materials, EarlyView.Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado +6 more
wiley +1 more source
Leach rate studies on glass containing actual radioactive waste
Nuclear and Chemical Waste Management, 1982 Borosilicate glass containing radioactive wastes from the Savannah River Plant have been leached for 900 days. The International Standards Organization's (ISO) static leach test procedure was used on glass buttons in various leachants. Leach rates based on /sup 90/Sr and /sup 137/Cs analyses were similar: 2 x 10/sup -8/ to 3 x 10/sup -8/ g/(cm/sup 2 ...
D.D. Walker +3 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl +20 more
wiley +1 more source
Oxygen application to chloride leaching of complex sulfide ores [PDF]
, 1987 The study investigates leaching of complex sulfide ores with simultaneous regeneration of the leaching solution and removal of dissolved iron to balance the iron concentration in the leaching process.
Chou, Kuo Tung
core
An Experimental and Analytical Approach to Understanding the Dynamic Leaching from Municipal Solid Waste Combustion Residue [PDF]
, 2002 This paper describes an experimental technique involving the use of small columns for generating significant quantities of leachate data from municipal solid waste (MSW) solid residues within a relatively short amount of time.
Gardner, Kevin H. +2 more
core +2 more sources
Advanced Functional Materials, EarlyView.Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He +5 more
wiley +1 more source
Leach Rates of High Activity Waste from Borosilicate Glass [PDF]
Nuclear Technology, 1979 Borosilicate glasses containing actual high-level Savannah River Plant waste were leached in static, distilled water.
openaire +1 more source
Spatial moment analysis of transport of nonlinearly absorbing pesticides using analytical approximations [PDF]
, 2008 Analytical approximations were derived for solute transport of pesticides subject to Freundlich sorption, and first-order degradation restricted to the liquid phase.
Beltman, W.H.J. +2 more
core +2 more sources