Results 21 to 30 of about 32,962 (258)
Aluminum Incorporation to Dreierketten Silicate Chains
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 +4 more sources
Cyclic growth of hierarchical structures in the aluminum-silicate system [PDF]
Abstract Background Biological structures grow spontaneously from a seed, using materials supplied by the environment. These structures are hierarchical, with the ‘building blocks’ on each level constructed from those on the lower level.
P. Nowak+6 more
openaire +3 more sources
Experimental study of lead (II) removal using polymorphous silica adsorbents [PDF]
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
Silicate Removal in Aluminum Hydroxide Co-Precipitation Process [PDF]
The removal mechanisms of silicate using an aluminum hydroxide co-precipitation process was investigated and compared with an adsorption process, in order to establish an effective and validated method for silicate removal from wastewater. Adsorption isotherms, XRD and FT-IR analyses showed that silicate uptake occurred by adsorption to boehmite for ...
Chiharu Tokoro+3 more
openaire +2 more sources
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
Synthesis of porous silicates [PDF]
The issues of importance and future concern in the synthesis of porous silicates and porous materials that contain a large fraction of silica, e.g. zeolites and other crystalline molecular sieves, are reviewed. The thermodynamics of zeolite synthesis are
Davis, M. E., Helmkamp, M. M.
core +1 more source
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
On the Anomalous Silicate Absorption Feature of the Prototypical Seyfert 2 Galaxy NGC 1068 [PDF]
The first detection of the silicate absorption feature in AGNs was made at 9.7 micrometer for the prototypical Seyfert 2 galaxy NGC 1068 over 30 years ago, indicating the presence of a large column of silicate dust in the line-of-sight to the nucleus.
arxiv +1 more source
Hydrometallurgical extraction of Al and Si from kaolinitic clays [PDF]
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 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 +1 more source