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Dissolution behavior of a polyphosphate glass into an aqueous solution under static leaching conditions
(Elsevier, Amsterdam, 2013)
The dissolution behavior of a polyphosphate glass with a molar ratio [M2O + MO]/P2O5 gt 1 in distilled water under static condition was studied. The leaching tests were performed with glass powder samples (0.1-0.65 mm) at ...
Kinetic Modeling of Sunflower Oil Methanolysis Catalyzed by Calcium-Based Catalysts
(Wiley-VCH Verlag, 2015)
The kinetic model originally developed for quicklime-catalyzed methanolysis of sunflower oil was tested for another three calcium-based catalysts, namely, neat CaO, Ca(OH)2, and CaO·ZnO. This model includes the changing ...
Kinetics and mechanism of degradation of Co(II)-N-benzyloxycarbonylglycinato complex
(Springer, Dordrecht, 2012)
The kinetics of multi-step thermal degradation of Co(II) complex with N-benzyloxycarbonyl glycinato ligand [Co(N-Boc-gly)(2)(H2O)(4)]center dot 2H(2)O, in non-isothermal conditions was studied using isoconversional and ...
Kinetics of the oxygen evolution reaction on NiSn electrodes in alkaline solutions
(Elsevier Science Sa, Lausanne, 2015)
In order to examine the intrinsic catalytic activity and durability of the electrodeposited NiSn alloy electrodes and the electrodeposited Ni as a reference electrode material for the oxygen evolution reaction (OER) in ...
The effect of agitation intensity on alkali-catalyzed methanolysis of sunflower oil
(Elsevier, 2007)
The sunflower oil methanolysis was studied in a stirred reactor at different agitation speeds. The measurements of drop size, drop size distribution and the conversion degree demonstrate the effects of the agitation speed ...
Batch and semicontinuous production of L-ascorbyl oleate catalyzed by CALB immobilized onto Purolite (R) MN102
(Elsevier, Amsterdam, 2017)
L-Ascorbyl oleate is recognized as efficient liposoluble antioxidant and biosurfactant which can be synthesized by using immobilized lipases as catalysts in organic media. However, development of economical production ...
Kinetics of the hydrogen evolution reaction on Ni-(Ebonex-supported Ru) composite coatings in alkaline solution
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
The hydrogen evolution reaction (HER) was studied on Ni, Ni-Ebonex and Ni-(Ebonex-Ru) coatings in 1 mol dm(-3) NaOH solution at 25 degrees C. The composite coatings were electro-deposited from a nickel Watts-type bath ...
Kinetics of sunflower oil methanolysis at low temperatures
(Elsevier Ltd, 2008)
The kinetics of the sunflower oil methanolysis process was studied at lower temperatures (10-30 °C). The sigmoidal kinetics of the process was explained by the mass transfer controlled region in the initial heterogenous ...
Thermal characterization and kinetic analysis of non-isothermal decomposition process of Bauxite red mud. Estimation of density distribution function of the apparent activation energy
(Elsevier, 2013)
Thermal characterization and kinetic analysis of non-isothermal decomposition process of Bauxite red mud were carried out using thermogravimetry (TG), derivative thermogravimetry (DTG), differential scanning calorimetry ...
Decrease of free fatty acid content in vegetable oil using silica supported ferric sulfate catalyst
(Elsevier Sci Ltd, Oxford, 2012)
A difficulty of biodiesel synthesis based on alkaline catalysts obviously exists if free fatty acids (FFAs) content in vegetable oil is above 0.5 wt.%. In this study, the ferric sulfate supported on silica (Fe-2(SO4)(3)/SiO2) ...