Results 21 to 30 of about 73,997 (288)

Functional glass-ceramic foams from \u2018inorganic gel casting\u2019 and sintering of glass/slag mixtures [PDF]

open access: yes, 2018
The here described investigation was essentially aimed at exploring the chemical stabilization and reutilization of iron-rich slag from copper metallurgy, by the manufacturing of glass-ceramic foams.
Bernardo, Enrico   +2 more
core   +1 more source

Optimization of uranium alkaline leaching from the solid waste sample containing high fluoride and nitrate by response surface methodology experimental design [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2023
Carbonate solution is used for the alkaline leaching of uranium from solid waste. Time, temperature, stirring speed (independent parameters) and total carbonate concentration, carbonate to bicarbonate ratio, and the ratio of liquid eluent volume to solid
M. Haji Hosseini   +7 more
doaj   +1 more source

Dye modification of nanofibrous silicon oxide membranes for colorimetric HCl and NH3 sensing [PDF]

open access: yes, 2016
Colorimetric sensors for monitoring and visual reporting of acidic environments both in water and air are highly valuable in various fields, such as safety and technical textiles.
Breyne, Bet   +8 more
core   +1 more source

Advances in bioleaching as a sustainable method for metal recovery from e-waste:A review [PDF]

open access: yes, 2019
Electronic waste (e-waste) accumulation on earth is a serious environmental challenge. The need for heavy metal recovery, together with the profitability of precious and base metals, are strong incentives for researchers to find a sustainable method for ...
Bahaloo-Horeh, Nazanin   +4 more
core   +1 more source

Novel Extraction Process Of Rare Earth Elements From NdFeB Powders Via Alkaline Treatment

open access: yesArchives of Metallurgy and Materials, 2015
The alkaline treatment of NdFeB powders in NaOH solution at various equivalent amounts of NaOH at 100°C was performed. The resultant powders were then leached in 0.5M H2SO4 solution at 25°C for 2 minutes.
Chung K.W., Kim C.-J., Yoon H.-S.
doaj   +1 more source

Recovery of Cerium Oxide Abrasive from an Abrasive–Glass Polishing Waste through Alkaline Roasting Followed by Water Leaching

open access: yesMetals, 2020
Abrasive–glass polishing waste is generated from the polishing process of glass components by using cerium oxide abrasive, which contains the cerium oxide abrasive and the polished glass. This study attempted to recover the cerium oxide abrasive from the
Li-Pang Wang   +2 more
doaj   +1 more source

Hydrometallurgical extraction of Al and Si from kaolinitic clays [PDF]

open access: yes, 2017
Herein is presented the results of a study on the hydrometallurgic extractionand recovery of aluminum and silicon by leaching of kaolinitic clays with HF. Thestudied extraction parameters were: temperature, reaction time, solid/liquid ratio,concentration,
Pinna, Eliana Guadalupe   +3 more
core   +3 more sources

A review of sample preparation and its influence on pH determination in concrete samples [PDF]

open access: yes, 2017
If we are to monitor the chemical processes in cementitious materials, then pH assays in the pore solutions of cement pastes, mortars, and concretes are of key importance.
Aguado de Cea, Antonio   +1 more
core   +2 more sources

Valuable metal recovery from waste tantalum capacitors via cryogenic crushing-alkaline calcination-leaching process

open access: yesJournal of Materials Research and Technology, 2022
The development of tantalum capacitor (TC) industry is associated with the production of one technology metal-tantalum (Ta). The recycling of waste tantalum capacitors (WTCs) is an important strategy for the sustainable development of tantalum related ...
Longgong Xia   +4 more
doaj   +1 more source

Effects of Acid Treatment on the SEM-EDX Characteristics of Kaolin Clay [PDF]

open access: yes, 2017
Raw kaolin was refluxed by sulphuric acid in variable concentrations of 2 M, 4 M, 6 M and 8 M. The morphology and elemental compositions of the acid-leached kaolin were analyse by Field Scanning Electron Microscopy (FESEM) and Energy Dispersive X-ray ...
Adamu, Ajiya Dahiru   +3 more
core   +3 more sources

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