In this study the thermal calcination of two materials, high purity zinc carbonate hydroxide and the Calsimin zinc carbonate concentrate have been investigated. Isothermal studies have been performed on samples at different temperatures and times. Non-isothermal analysis has been carried out by ...

The preparation of ZnO nanoparticles with a multi-step process is reported. The preparation path included zinc hydroxide nitrate (ZnHN) or zinc hydroxide carbonate (ZnHC) precipitation, their thermal treatment and nano-milling. ZnO preparation was followed in detail by STEM, FT-IR, XRD and TG-MS...

In order to control the particle size and morphology, zinc carbonate hydroxide Zn5(CO3)2(OH)6 nanoparticles have been synthesized using a reverse microemulsion technique. The pseudo-ternary phase diagrams of the two microemulsion systems, prepared using CTAB/1-butanol/n-octane/aqueous phase syst...

Zinc hydroxide carbonate (ZHC) is a typical layered salt composed of zinc hydroxide layers separated with carbonate ions and water molecules. Studies of morphology control and the constitution of functional ZHC material with intercalated ions has been widely developed. Also, ZnO can be easily ob...

The preparation of a magnesium hydroxy carbonate from magnesium hydroxide and carbon dioxide is described. The procedure involves the formation of a magnesium hydroxide slurry and sparging CO2 gas through it. Various experimental conditions are evaluated in order to obtain the conditions that re...

The magnetic layered double hydroxide lithium-aluminum was prepared by the combination of two simple procedures: co-precipitation method for the magnetite and dissolution of aluminum powder under strong basic conditions in order to form the LDH. The magnetic LDH was characterized by powder X-ray...

In this work, the recovery of magnesium from desalination reject brine through reaction with ammonia has been evaluated and statistically optimized using response surface methodology. The process is based on precipitation of magnesium hydroxide by the reaction of MgCO3 in the brine with ammonium...

Synthesis of pure and Ni-doped nano Mg-Al layered double hydroxides (LDHs) using aluminum dross is the main goal of the present study. Moreover, the sintering of prepared LDHs to produce sintered spinel at relatively low temperature was also performed. Extraction of nano Al(OH)3 from aluminum dr...

Uranium in saline lake brine is a nuclear resource that attracts worldwide attention. Relatively low concentrations (about 0.2 mg L−1 to 30 mg L−1) require high affinity for the capture materials. In this paper, magnesium binary layered double hydroxides (MgAl-LDH) and its Fe-induced ternary LDH...

Layered magnesium-aluminum hydroxides of hydrotalcite-like structure were synthesized on the surface of γ-Al2O3. The synthesis was performed via the interaction of aluminum and magnesium hydroxides and carbonate ions in the pores of alumina support. Novelty of the approach was that the synthesi...

The sol–gel transformation of aqueous solutions of aluminium ions into aluminium (oxy)hydroxides induced by the addition of a ‘soft base’—‘Tris-buffer’ (pKa=8.2) has been investigated using monotonous single-batch titrations and a combination of four complimentary techniques for monitoring...

The main data concerning acidity and basicity characterization of protonic and cationic zeolites are described and discussed. In particular, experimental data concerning IR studies of the adsorption of pyridine, CO and CO2 on Na-zeolites (Na-X, Na-A, Na-MOR) and on protonic zeolites (with emphas...

Alkali silica reaction (ASR) is one of the most commonly occurring durability issues in concrete structures. In this study, the feasibility of using waste aluminium in bit, powder and dissolved forms as a sustainable alternative to mitigate ASR was investigated. The accelerated mortar bar test w...

The present study was focused on the development of a green process for the production of glycerol carbonate (GYC) from glycerol and dimethyl carbonate using a Ti-SBA-15 catalyst. Ti-SBA-15 catalysts with varying Si/Ti ratio were synthesized in-situ using sol gel method and characterized using v...

In this research work, moisture- and air-stable terpyridine-mediated magnetic boehmite (terpyridine-Pr-Fe3O4@boehmite) nanocatalyst was fabricated and applied for the synthesis of cyclic carbonates. The nanocatalyst was constructed by very simple process using commercially available starting mat...

The sol-gel synthesis of ZnAl2O4 ceramic powders from alkoxide and acetate sources of metals, as well as the microstucture and the hardness of the hot-pressed ZnAl2O4 specimens were considered. ZnAl2O4 powders were prepared by the hydrolysis of an alcohol solution of aluminium isopropoxide using...

A series of mixed oxide‑carbonate Al2O3-La2O2CO3 systems with the La/Al molar ratios of 0.05, 0.1, 0.25, 0.5 and 1.0 have been synthesized by the sol–gel technique from aluminum isopropoxide and metallic lanthanum powder. During the synthesis of Al2O3- La2O2CO3 system, metallic lanthanum acts b...

The drawbacks, high energy consumption, rigorous preparation condition and high impurity contents, have been well-recognized in the preparation of widely-used polyaluminum chloride via conventional methods in industrial scale. In order to overcome the drawbacks, the fresh aluminum hydroxide gels...

Syntheses of novel biobased PolyHydroxyUrethane (PHU) have been performed from Jojoba and castor oil. Cyclic carbonate monomers with various functionality were synthesized from both jojoba and castor oils. Pendant cyclic carbonate groups were obtained by a two-step reaction: thiol-ene coupling w...

The surface of self-made MoS2 nanosheets with five-layer structure was successively decorated by zinc borate (ZB) nanoparticles with coordination enhancement on the tribological performance and modified by three types of modifiers for improving dispersivity in oil. A series of characterizations ...