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Adsorption of Nitrilotriacetate (NTA), Co and CoNTA by Gibbsite
?Al2O3 Adsorption Chelate Cobalt Desorption Gibbsite (?Al(OH)3) Nitrilotriacetic Acid (NTA)
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2011/12/27
Adsorption of Co2+ nitrilotriacetic acid (NTA) and equal-molar Co2+ and NTA by a low surface area (LSA) commercial gibbsite (3.5 m2 g−1) was investigated in batch as a function of pH (4.5 to 10....
Effects of Acidity on the Hydrothermal Synthesis of Kaolinite from Silica-Gel and Gibbsite
Crystallite size Crystallization Hydrothermal synthesis Kaolinite pH Stacking fault
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2011/12/27
Abstract: A comparative study is reported in which kaolinite has been hydrothermally synthesized at several pH conditions. The syntheses were carried out at 220 亱C for 3 to 10 d with distilled water o...
Formation of Organic Derivatives of Boehmite by the Reaction of Gibbsite with Glycols and Aminoalcohols
Amino alcohol Boehmite Gibbsite Glycol Infrared spectroscopy Organic derivative X-ray powder diffraction
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2011/12/31
The reaction of gibbsite in various organic solvents at 250°–300°C under spontaneous vapor pressure of the solvents was examined. Glycols and aminoalcohols afforded the organic derivatives of boehmite...
Alcohothermal Treatments of Gibbsite: Mechanisms for the Formation of Boehmite
Alcohol x-Alumina Boehmite Crystallization Gibbsite Thermal treatment
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2011/11/30
Abstract: Gibbsite samples of various particle sizes (0.2?0 祄) were heated at 250癈 in a series of straight-chain primary alcohols under the autogenous vapor pressure of the alcohol (alcohothermal trea...
Mechanisms of Gibbsite Crystallization from Partially Neutralized Aluminum Chloride Solutions
Aluminum hydroxide Crystallization Gibbsite OH-Al polymer Nucleation
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2011/11/28
Abstract: To interpret the erratic conditions, rates, and extent of gibbsite crystallization from partially neutralized AlCl3 solution, the following hypothesis is proposed: The initial OH-Al polymers...
Relative Solubility of Corundum, Gibbsite, Boehmite, and Diaspore at Standard State Conditions
Acid solubility Aluminum Boehmite Corundum Diaspore Gibbsite
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2012/1/9
The solubilities of HCl-treated samples of corundum, gibbsite, boehmite, and diaspore in aqueous solutions at 298 K and one atmosphere pressure were determined from undersaturated and supersaturated i...
Influence of Glycine on Cu2+ Adsorption by Microcrystalline Gibbsite and Boehmite
Adsorption Boehmite Copper Electron spin resonance Gibbsite Glycine Hydrolysis
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2012/2/2
The adsorption of Cu2+ on microcrystalline gibbsite and boehmite from aqueous solutions having 2/1 and 5/1 glycine/Cu ratios has been studied using electron spin resonance (ESR). The presence of glyci...
Cu2+ Interaction with Microcrystalline Gibbsite. Evidence for Oriented Chemisorbed Copper Ions
Adsorption Chemisorption Copper Electron spin resonance Gibbsite Infrared spectroscopy
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2011/11/25
Abstract: The ability of a high surface-area gibbsite to adsorb Cu2+ was studied using a Cu2+ ion-selective electrode, electron spin resonance, infrared spectroscopy, and electron microscopy. The gibb...
Quartz Presence in Relationship to Gibbsite Stability in Some Highly Weathered Soils of Brazil
Quartz Presence Gibbsite Stability Highly Weathered Soils
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2012/2/15
Determination of the mineralogical composition of six highly weathered soils of the Central Plateau of Brazil showed that the sand content (predominantly quartz) was not related to the relative amount...
The Stability of Gibbsite and Boehmite at the Surface of the Earth
Stability Gibbsite Boehmite Surface the Earth
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2012/2/20
Two mutually exclusive views exist concerning the relative stabilities of gibbsite and boehmite in soils. These are examined in terms of experimental and thermodynamic evidence and it is shown that al...