Buscar
Mostrando ítems 1-10 de 434
Highly selective acetalization of glycerol with acetone to solketal over acidic carbon-based catalysts from biodiesel waste
(Elsevier Sci Ltd, 2016)
The glycerol acetalization reaction in the presence of acetone was evaluated using acidic carbon-based catalysts from biodiesel waste as catalysts. Acidic carbon-based catalysts were prepared with different glycerin: ...
p-Sulfonic acid calix[n]arenes as homogeneous and recyclable organocatalysts for esterification reactions
(Tetrahedron Letters, 2018)
Preparation of recoverable Ru catalysts for liquid-phase oxidation and hydrogenation reactions
(ELSEVIER SCIENCE BV, 2009)
We here report the synthesis, characterization and catalytic performance of new supported Ru(III) and Ru(0) catalysts. In contrast to most supported catalysts, these new developed catalysts for oxidation and hydrogenation ...
Effect of inactivation and reactivation conditions on activity recovery of enzyme catalysts
(UNIV CATOLICA DE VALPARAISO, 2013)
Recoverable rhodium nanoparticles: Synthesis, characterization and catalytic performance in hydrogenation reactions
(ELSEVIER SCIENCE BV, 2008)
We here report the first magnetically recoverable Rh(0) nanoparticle-supported catalyst with extraordinary recovery and recycling properties. Magnetic separation has been suggested as a very promising technique to improve ...
Recycling of mining waste in the synthesis of magnetic nanomaterials for removal of nitrophenol and polycyclic aromatic hydrocarbons
(2021-05-16)
Iron mining residues were successfully used in the fast and inexpensive sol-gel synthesis of magnetic hybrids (CoFe2O4/NOM), with water rich in natural organic matter (NOM) as solvent. XRD analyses revealed formation of ...
Solid catalysts obtained from wastes for FAME production using mixtures of refined palm oil and waste cooking oils
More than 95% of biodiesel production feedstocks come from edible oils, however it may cause some
problems such as the competition of land use between food production and biodiesel production. The
waste cooking oils (WCO) ...
Catalyst Recovery and Recycling Facilitated by Magnetic Separation: Iridium and Other Metal Nanoparticles
(WILEY-V C H VERLAG GMBHWEINHEIM, 2012)
The immobilization of metal nanoparticles in magnetic responsive solids allows the easy, fast, and clean separation of catalysts; however, the efficiency of this separation process depends on a strong metalsupport interaction. ...
Catalyst Recovery and Recycling Facilitated by Magnetic Separation: Iridium and Other Metal Nanoparticles
(Wiley-BlackwellWeinheim, 2012)