搜索结果: 1-13 共查到“矿床学与矿相学 hydroxides”相关记录13条 . 查询时间(0.046 秒)
This study investigates the potential of a Zn/Al layered double hydroxides (LHDs) as an adsorbent for the removal of iodine species from potable water (Theiss et al., 2011b). In this paper the resulta...
Interlayer structure, anion dynamics, and phase transitions in mixed-metal layered hydroxides: Variable temperature 35Cl NMR spectroscopy of hydrotalcite and Ca-aluminate hydrate (hydrocalumite)
Cl -intercalated hydrotalcite Ca-aluminate hydrate Variable temperature
2012/3/31
The Cl NMR spectroscopy of Cl -intercalated hydrotalcite and the Ca-aluminate hydrate, the presence of
hydrocalumite (Friedel°Os salt) demonstrates dynamical behavior of interlayer C
dynamical orde...
Alteration of microbially precipitated iron oxides and hydroxides
Alteration microbially precipitated iron oxides hydroxides
2012/4/1
Iron oxide and hydroxides can be precipitated from solution with both Fe21 and Fe31 states by a microbial consortium enriched from surface water draining a granitic batholith. The Fe21/Fe31 ratio of t...
Rehydration of Zn-Al Layered Double Hydroxides
Hydrotalcite Hydrothermal Treatment Layered Double Hydroxide Reconstruction
2011/12/1
Abstract: Rehydration is shown to be straightforward for the reconstruction of polyoxometallate-pillared layered double hydroxides. Zn-Al hydrotalcite-like minerals were prepared with Zn/Al ratios of ...
Cation Ordering in Synthetic Layered Double Hydroxides
Cation Ordering LDH Pyroaurite XAS XRD
2011/12/22
Abstract: A combined powder X-ray diffraction (XRD) and X-ray absorption (XAS) study of Fe(III) cation ordering within pyroaurite is described. It is concluded that there is no correlation between Fe(...
Formation of Aluminum Hydroxides as Influenced by Aluminum Salts and Bases
Aluminum hydroxides Pseudoboehmite Sulfates
2011/12/1
Abstract: The influence of different ions in the formation of Al(OH)3 polymorphs has been studied experimentally by promoting stoichiometric reactions between the aluminum salts (AlCl3, Al(NO3)3, Al2(...
Synthesis and Catalytic Properties of Silicate-Intercalated Layered Double Hydroxides Formed by Intragallery Hydrolysis of Tetraethylorthosilicate
2-methyl-3-butyn-2-ol conversion Acidic and basic properties Intragallery hydrolysis Layered double hydroxides Silicate intercalation
2011/12/28
Layered double hydroxides (LDH's) interlayered with silicate anions were prepared by reaction of tetraethylorthosilicate (TEOS) with synthetic meixnerite-like precursors of the type [Mg1−xAlx(OH...
Effects of Humic Acid on the Crystallization of Aluminum Hydroxides
Aluminum hydroxide Bayerite Boehmite Crystallization Gibbsite Humic acid X-ray powder diffraction
2011/11/30
Abstract: The effects of humic acid (HA) on the crystallization of precipitation products of Al under mildly acidic to alkaline conditions were investigated. The extent of Al precipitation substantial...
Influence of Inorganic and Organic Ligands on the Formation of Aluminum Hydroxides and Oxyhydroxides
Aluminum hydroxide Boehmite Ligand Precipitation Pseudoboehmite X-ray powder diffraction
2012/1/13
Hydroxide and oxyhydroxide products of aluminum were formed at room temperature at an initial Al concentration of 2 × 10−3 M, pH 8.2, and at varying concentrations of organic and inorganic ligan...
Organic Anion Adsorption on Aluminum Hydroxides: Spin Probe Studies
Adsorption Aluminum hydroxide Boehmite Carboxylate Electron spin resonance Gibbsite Organophosphate
2012/2/8
The nature of organo-phosphate and carboxylate bonding in aqueous suspensions of noncrystalline alumina, boehmite, and gibbsite has been studied using the anionic nitroxide spin probes 3-carboxy-2,2,5...
Influence of pH, Concentration, and Chelating Power of Organic Anions on the Synthesis of Aluminum Hydroxides and Oxyhydroxides
Aluminum hydroxide Aluminum oxyhydroxide Carboxylic acid Chelation Crystallization Pseudoboehmite
2012/2/9
Chelating organic acids hampered the hydrolytic reactions of Al and affected the nature of the crystalline aluminum hydroxides. Chemical composition, structure, size, nature of functional groups, and ...
The Hydrothermal Transformation of Sepiolite to Stevensite and the Effect of Added Chlorides and Hydroxides
Drilling Fluids Hydrothermal Stability Sepiolite Smectite Stevensite
2012/2/10
Hydrothermal reactions in the system sepiolite/H2O have been examined between 149° and 316°C Approximately 10–20% of the starting sepiolite was converted to a smectite (stevensite) at 204°C within 24 ...
The Influence of the Activity of Water on the Phase Composition of Aluminum Hydroxides Formed by Reaction of Amalgamated Aluminum with Water
Alumina Aluminum Bayerite Hydroxide Pseudoboehmite Water
2012/2/10
The influence of the activity of water on the phase composition of aluminum hydroxides obtained by reaction of amalgamated aluminum with water has been studied. The reaction was carried out in solutio...