Results 11 to 20 of about 5,672 (300)

An Efficient Approach for Lithium and Aluminum Recovery from Coal Fly Ash by Pre-Desilication and Intensified Acid Leaching Processes

open access: yesMetals, 2017
A novel technique was developed for the recovery of lithium and aluminum from coal fly ash using a combination of pre-desilication and an intensified acid leaching process. The main components of the high-aluminum fly ash were found to be Al2O3 and SiO2,
Shenyong Li   +5 more
doaj   +2 more sources

Chemical Recycling of Used Motor Oil by Catalytic Cracking with Metal-Doped Aluminum Silicate Catalysts [PDF]

open access: yes, 2023
The chemical recycling of used motor oil via catalytic cracking to convert it into secondary diesel-like fuels is a sustainable and technically attractive solution for managing environmental concerns associated with traditional disposal. In this context,
Ponce, Sebastián   +9 more
core   +1 more source

Synthesis of 2,8,14,20-tetra-n-butylpyrogallol[4]arene and computational study conformational

open access: yesACI Avances en Ciencias e Ingenierías, 2010
This work presents the preparation of mesoporous aluminum silicates from condensation of xerogel obtained from Tetraethyl orthosilicate (TEOS) and other aluminum precursos from various sources.
Cesar H. Zambrano   +4 more
doaj   +1 more source

Experimental study of lead (II) removal using polymorphous silica adsorbents [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2019
Adsorption of lead(II) as a major heavy metal pollutant onto nano-adsorbents of Andalusite, Kyanite and Sillimanite was studied in a batch system.
Saleh Nosrati   +2 more
doaj   +1 more source

Speciation of selected trace and major elements in lignite used in "Nikola Tesla A" power plant (Obrenovac, Serbia) [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
Four samples of milled lignite used in the "Nikola Tesla A" power plant located in Obrenovac near Belgrade, were subjected to a five-step sequential extraction, comprising of the following phases: distilled water, 1M ammonium acetate, 0.2M ammonium ...
Popović Aleksandar R.   +1 more
doaj   +3 more sources

Aluminum Incorporation to Dreierketten Silicate Chains

open access: yesThe Journal of Physical Chemistry B, 2009
This work explores, from a theoretical viewpoint, the aluminum incorporation into silicate chains with dreierketten conformation relevant in the cementitious calcium-silicate-hydrate (C-S-H) gel and in other minerals, such as wollastonite and hillebrandite.
Manzano, Hegoi   +2 more
openaire   +3 more sources

Chemical diffusion of fluorine in jadeite melt at high pressure [PDF]

open access: yes, 1984
The chemical diffusion of fluorine in jadeite melt has been investigated from 10 to 15 kbars and 1200 to 1400°C using diffusion couples of Jadeite melt and fluorine-bearing jadeite melt (6.3 wt.% F). The diffusion profile data indicate that the diffusion
Scarfe, Christopher M.   +1 more
core   +1 more source

Phase composition of brown ceramics of lava-like fuel-containing materials of the object “Shelter” ChNPP

open access: yesЯдерна фізика та енергетика, 2019
Using the X-ray diffraction method, the phase content of brown ceramics of lava-like fuel-containing materials of the “New Safe Confinement – Shelter Object” Complex was investigated.
S. V. Gabielkov   +6 more
doaj   +1 more source

Surface modification methods of ceramic filler in ceramic-carbon fibre composites for bioengineering applications – A systematic review

open access: yesReviews on Advanced Materials Science, 2020
The present review paper focuses on the current state of the art of the alumina-silicate ceramics and surface modifications of ceramics dedicated as fillers in composites with carbon fiber. The use of aluminum-silicates in the form of a cenosphere due to
Nakonieczny Damian S.   +2 more
doaj   +1 more source

The Structure of Ordered Mesoporous Materials Synthesized from Aluminum Phyllosilicate Clay (Bentonite)

open access: yesMolecules, 2023
This paper reports the synthesis and structural analysis of mesoporous silica materials with the use of aluminum phyllosilicate clay (bentonite) as an alternative silica source.
Malgorzata Zienkiewicz-Strzalka   +4 more
doaj   +1 more source

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