Electrolyte solutions in alkaline nuclear waste contain aluminate, hydroxide, nitrate and nitrite with sodium as the predominant counterion. The salts of these ions are highly soluble, so liquids concentrated. This study found that there is a substantial incompatibility between hydroxide and/or ions. was determined by observation adding just one molal NaNO2 or NaNO3 to saturated NaOH solution r...

Citric acid added as set retarder significantly contributed to enhancing the setting temperature and to extending the thickening time of a calcium aluminate phosphate (CaP) geothermal cement slurry consisting of calcium aluminate cement (CAC) as the base reactant and sodium polyphosphate (NaP) solution as the acid reactant. The set-retarding activity of citric acid was due to the uptake of Ca2'...

Oxide layers on Mg97Y2Zn1 magnesium alloy with strengthening LPSO-phase were formed by plasma electrolytic oxidation (PEO) in bipolar mode frequency variation of forming current pulses (50 and 500 Hz) addition sodium aluminate or silicate to alkali phosphate fluoride electrolyte. Microstructure, chemical phase composition, corrosion mechanical properties the oxide investigated. With increasing ...

Abstract Leaching experiments were performed in calcium aluminate slag with a high-sodium carbonate adaptation of the Pedersen process. A theoretical thermodynamic study pregnant leaching solution was conducted to specify thermodynamically favored species that exist within. Using HSC 9.0 software, carbonation process simulation (neutralization CO 2 gas) simulated. Laboratory verify predictions....

Sodium Aluminate (NaAlO2) nanophosphor was prepared from analytical grade Nitrate (NaNO3) and Aluminium (Al(NO3)3.9H2O) by solution combustion method at 450° C using honey as a fuel. The sample characterised X-ray diffraction technique (XRD), UV-Visible Photoluminescence (PL). analysis carried out Bruker AXS D8 Advance diffractometer with Cu-Target (Cu/Kα radiation of wavelength λ =1.54060Å). D...