Now showing items 1-10 of 1554
Tailored Media for Homogeneous Cellulose Chemistry: Ionic Liquid/Co-Solvent Mixtures
Co-solvents can minimize two of the major problems associated with the use of ionic liquids (ILs) as solvents for homogeneous derivatization of cellulose: high viscosity and limited miscibility with non-polar reagents or ...
Impact of solvent on Co/SiO2 activity and selectivity for the synthesis of n-butylamine from butyronitrile hydrogenation
The impact of solvent on Co(9.8%)/SiO2 activity and selectivity for the synthesis of n-butylamine from the liquid-phase butyronitrile hydrogenation was investigated at 373 K and 13 bar using methanol, benzene, toluene and ...
Extraction of jojoba oil with liquid CO2 + propane solvent mixtures
(Elsevier Science, 2014-04-16)
In this work liquid CO2/propane mixtures were used to extract jojoba oil from oilseeds. First, experiments at 313 K and pressures of 70 bar and 200 bars were carried out on jojoba oil deposited on glass spheres, using ...
Effect of co-solvents in the enantioselective esterification of (R/S)-ibuprofen with ethanol
(Bentham Science Publishers, 2014-05)
The commercial biocatalyst Novozym 435 was used for the kinetic resolution of (R/S)-ibuprofen by esterification with short chain alcohols (ethanol, 1-propanol and 2-propanol) in the absence of organic co-solvent. The best ...
Extraction of ginger (Zingiber officinale Roscoe) oleoresin with CO2 and co-solvents: a study of the antioxidant action of the extracts
(Elsevier Science BvAmsterdamHolanda, 2002)
Extraction of caffeine, chlorogenic acids and lipids from green coffee beans using supercritical carbon dioxide and co-solvents
(Brazilian Society of Chemical Engineering, 2008)
UV–Vis spectroscopic study and DFT calculation on the solvent effect of trimethoprim in neat solvents and aqueous mixtures
(Elsevier Science, 2014-08)
The solvatochromic behavior of trimethoprim (TMP) was analyzed using UV–Vis spectroscopy and DFT methods in neat and binary aqueous solvent mixtures. The effects of solvent dipolarity/polarizability and solvent–solute ...
Liquid-phase hydrogenation of acetophenone over silica-supported Ni, Co and Cu catalysts: Influence of metal and solvent
In this work, we studied the influence of solvent and metal nature on the liquid-phase hydrogenation of acetophenone (AP) over Ni/SiO2, Co/SiO2 and Cu/SiO2. Catalysts were prepared by wetness impregnation method with ...