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Kinetic study of the esterification of free fatty acid and ethanol in the presence of triglycerides using solid resins as catalyst
(Oxford University Press, 2012-12-30)
Biodiesel production is gaining more and more relevance due to its environmental advantages and because of the world situation of petroleum: decreases of reserves, augmentation of prices etc. Biodiesel is produced by ...
Acid-Base Site Detection and Mapping on Solid Surfaces by Kelvin Force Microscopy (KFM)
(Amer Chemical SocWashingtonEUA, 2012)
Patagonian salt marsh soils and oxidizable pedogenic pyrite: solid phases controlling aluminum and iron contents in acidic soil solutions
(Springer, 2018-12)
The sulfidic materials present in salt marshes could be oxidized forming sulfuric acid, increasing the toxic levels of both Al and Fe available to plants. The objectives of this study were: (a) to evaluate the mechanism ...
Interaction of divalent copper with two diaminealkyl hexagonal mesoporous silicas evaluated by adsorption and thermochemical data
(Elsevier Science BvAmsterdamHolanda, 2005)
SAXS study of monodispersed silica nanospheres obtained by an amino acid route
(Elsevier B.V., 2010-10-01)
Spherical silica nanoparticles were prepared using a basic amino acid catalysis route and the kinetics of the particles growth was investigated by small angle X-ray scattering (SAXS). L-arginine was used in the polar aqueous ...
Acid removal from crude oils by catalytic esterification naphthenic acid catalize by Mg/Al hydrotalcite
(Elsevier Science, 2019-10)
The presence of relatively high levels of naphthenic acids in crude oil may cause serious corrosion problem at temperature between 200 °C and 400 °C. One of the viable processes for decreasing acidity is the esterification ...
Solid dispersions with hydrogenated castor oil increase solubility, dissolution rate and intestinal absorption of praziquantel
(2010-01-01)
The solubility behavior of drugs remains one of the most challenging aspects in formulation development. Solid Dispersion (SD) has tremendous potential for improving drug solubility. Although praziquantel (PZQ) is the first ...