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Hidrogenación selectiva de alquinos insaturados para la obtención de productos de química fina de alto valor agregado
(2013-09-20)
La importancia de la hidrogenación selectiva de dobles y triples enlaces carbono – carbono reside en que es una de las reacciones fundamentales para la síntesis de productos de Química Fina y de la industria química en ...
Evaluation of H2O2 electrogeneration and decolorization of Orange II azo dye using tungsten oxide nanoparticle-modified carbon
(2018-09-15)
In this paper, we report on the development of a new catalyst for H2O2 electrogeneration for the preparation of a gas diffusion electrode (GDE) for water treatment by electrochemical advanced oxidation processes (EAOPs). ...
Hydrocracking of long paraffins over Pt-Pd/WO3-ZrO2 in the presence of sulfur and aromatic impurities
(American Chemical Society, 2013-10-15)
The hydrocracking of long paraffins in the presence of sulfur and aromatic impurities using Pt–Pd/WO3–ZrO2 was assessed. The catalysts were tested for n-hexadecane hydrocraking in the presence and absence of several poisons, ...
Catalytic behavior of the WOx-ZrO2 system in the clean selective oxidation of diphenyl sulfide (DPS)
(Elsevier Science, 2021-07-12)
WOx-ZrO2 (ZWx) based catalysts were prepared by equilibrium adsorption in basic condition (pH 10) with W content of 10.5, 19.7 and 27.0 wt.%, using hydrous zirconia [ZrO2(383)] as support. In order to determine the soluble ...
Avaliação de modificações pós-síntese em zeólita ZSM-5 comercial aplicada na esterificação de ácido oleico com acetato de metila
(Universidade Federal de Santa MariaBrasilEngenharia QuímicaUFSMPrograma de Pós-Graduação em Engenharia QuímicaCentro de Tecnologia, 2019-11-25)
Zeolites are considered the most important catalysts in industry due to their unique properties. Among these materials, ZSM-5 highlights because of its stability and versatility, presenting a wide range of applications. ...
Porous shell/dense core structures prepared in tungsten phosphate glass through template-free route
(Elsevier Science SaLausanneSuíça, 2010)
Immobilization of zirconocene within silica–tungsten by entrapment: Tuning electronic effects of the support on the supported complex
(Elsevier, 2009-11-30)
The immobilization of Cp2ZrCl2 was performed by entrapment within the binary oxide SiO2–WO3 using a non-hydrolytic sol–gel route. The catalyst and oxide matrix were characterized by complementary techniques (Rutherford ...
Estudio de la incorporación de quelantes y relación de w en catalizadores de NiMo y NiMoW soportados en Ti-HMS y su aplicación en hidrodesulfuración
(Universidad Michoacana de San Nicolás de Hidalgo, 2018-11)
Based on the information obtained in previous studies for the preparation of better HDS catalysts (hydrodesulfurization), in the present research project the study of the incorporation of chelators in bimetallic and ...
Hydrodechlorination of dichloromethane with mono- and bimetallic Pd-Pt on sulfated and tungstated zirconia catalysts
(Academic Press Inc Elsevier Science, 2012-07)
Monometallic (Pt or Pd) and bimetallic (Pt–Pd) catalysts supported on zirconia promoted with sulfate (SZ) or tungsten oxide (WZ) were prepared and tested in the gas-phase hydrodechlorination of dichloromethane. The catalysts ...