Journal ArticleDOI
Aluminum hydroxide crystallization from aluminate solution using carbon dioxide gas: Effect of temperature and time
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TLDR
In this article, the influence of temperature and carbonation duration on the phase, morphology, particle size and purity of aluminum hydroxide produced by carbonation of aluminate solution obtained from sintered nepheline syenite leaching have been studied.About:
This article is published in Journal of Crystal Growth.The article was published on 2018-08-01. It has received 14 citations till now. The article focuses on the topics: Carbonation & Particle size.read more
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Journal ArticleDOI
Hydrogen generation through water splitting reaction using waste aluminum in presence of gallium
Shyam P. Tekade,Amit S. Pednekar,Gaurav R. Jadhav,Sunny E. Kalekar,Diwakar Z. Shende,Kailas L. Wasewar +5 more
TL;DR: In this article, the effect of gallium addition on the water splitting reaction was studied and co-related with various concentrations of activator (0.5, 1.0, and 1.5) and reaction temperature (50, 60, 70, and 70) in the presence of room temperature liquid metal gallium and potassium hydroxide.
Journal ArticleDOI
Highly efficient and stable PEI@Al2O3 adsorbents derived from coal fly ash for biogas upgrading
TL;DR: In this paper, the recycling of porous nano-Al2O3 support from coal fly ash (CFA) and the impregnation of PEI onto the nano-al 2 O3 support with large pore volume was proposed to enhance both the CO2 adsorption capacity and the cyclic stability of amine functional adsorbents.
Journal ArticleDOI
A cleaner electrolysis process to recover alumina from synthetic sulfuric acid leachate of coal fly ash
TL;DR: In this article, a nonhazardous approach to conduct electrolysis for alumina extraction from sulfuric acid leachate of high-alumina coal fly ash was proposed.
Journal ArticleDOI
Clean production of porous-Al(OH)3 from fly ash.
TL;DR: A clean electrolysis method to generate hydroxyl groups in situ to extract Al(OH)3 from fly ash leachate without adding chemicals or using expensive membranes, avoiding the introduction of new impurities, secondary pollutants generation, and membrane limitations is developed.
Journal ArticleDOI
Surfactant-free preparation of mesoporous solid/hollow boehmite and bayerite microspheres via double hydrolysis of NaAlO2 and formamide from room temperature to 180 °C.
TL;DR: This significant transformation of structure and morphology provides an effective strategy for preparing mono-phase hydrated alumina with excellent adsorption performance.
References
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Journal ArticleDOI
Structure and Stability of Aluminum Hydroxides: A Theoretical Study
TL;DR: In this article, first-principle density functional calculations were used to simulate several polymorphs with different degrees of hydration, including: gibbsite, bayerite, diaspore, boehmite, and tohdite.
Journal Article
Structures of aluminum hydroxide and geochemical implications
Robert Schoen,C. E. Roberson +1 more
Journal ArticleDOI
Alkalinity conversion of bauxite refinery residues by neutralization.
TL;DR: Investigation of the geochemistry of 3 treatments of a red mud to affect neutralization and potentially convert materials from a waste material to a resource finds that the neutralization techniques form two distinct geochemical groups when discriminated on total alkalinity alone.
Journal ArticleDOI
The crystallization mechanism of Al(OH)3 from sodium aluminate solutions
TL;DR: Particle size distribution analysis of dynamic light scattering (DLS) in the particle size range of 0.05-1.0μm shows that in a solution of intermediate concentration (i.e. 1.50-M NaOH, 0.97-M Al(III)) progressive, uni-modal nuclei growth occurs up to an average diameter (d ) of ≈300-nm as discussed by the authors.
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