Buscar
Mostrando ítems 1-10 de 15
1-Heptyne semihydrogenation catalized by palladium or rhodium complexes. Influence of: metal atom, ligands and the homo/heterogeneous condition
(Elsevier Science, 2007-07)
[RhCl(TDA)3], [RhCl(HA)3], [PdCl2(TDA)2] and [PdCl2(HA)2] (TDA = tridecylamine, HA = hexylamine) were synthesized and tested as catalysts in homogeneous and heterogeneous condition for the 1-heptyne semihydrogenation, using ...
Rhodium(I) complex with hexylamine and chloride ligands, catalytically active in the selective hydrogenation of 1-heptyne
(American Chemical Society, 2006-08)
A rhodium(I) complex containing chloro and hexylamine was obtained. This species shows catalytic activity for the 1-heptyne semihydrogenation under at mild conditions (303 K and 150 kPa) in homogeneous as well as heterogeneous ...
Graphite oxide as a support for palladium and rhodium complexes, assessed as catalysts for the partial hydrogenation of 1-heptyne
(MedCrave, 2020-08)
Graphite oxide (GO) was used to anchor [PdCl2(TDA)2] and [RhCl(TDA)3] (TDA = NH2(CH2)12CH3) with 2wt % of metal load. Elemental analysis (EA), FTIR, XPS, XRD and atomic absorption spectroscopy (AA) were the techniques ...
LIQUID-PHASE SELECTIVE HYDROGENATION OF 1-HEPTYNE OVER Ni/Al2O3. EFFECT OF THE REACTION TEMPERATURE
(Comité Editorial de "Avances en Ciencias e Ingeniería", 2011-04)
En este trabajo fue evaluado el efecto de la temperatura de reacción en la hidrogenación selectiva de 1-heptino a 1-hepteno usando un catalizador de níquel soportado sobre γ -alúmina. Fueron estudiadas diferentes temperaturas ...
Influence of Ni addition to a low-loaded palladium catalyst on the selective hydrogenation of 1-heptyne
(Sociedade Brasileira de Química, 2010-03)
Semi-hydrogenation of alkynes has industrial and academic relevance on a large scale. To increase the activity, selectivity and lifetime of monometallic catalysts, the development of bimetallic catalysts has been investigated. ...
The Wilkinson Complex as a heterogeneous catalyst in the partial hydrogenation of 1-heptyne. regeneration of the complex
(Sociedade Brasileira de Química, 2016-06)
The Wilkinson complex was tested as a catalyst in the partial hydrogenation of 1-heptyne, a medium chain alkyne, at a temperature of T = 303 K and hydrogen pressure PH2 = 150 kPa. The tests were performed in homogeneous ...
Kinetic study of the partial hydrogenation of 1-heptyne on tungsten oxide supported on alumina
(John Wiley & Sons Ltd, 2012-03)
BACKGROUND: Partial hydrogenation of alkynes have industrial and academic relevance on a large scale; industries such as petrochemical, pharmacology and agrochemical use these compounds as raw material. Typical commercial ...
Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support
(Hindawi Publishing Corporation, 2013-09)
Palladium, platinum and ruthenium supported on activated carbon were used as catalysts for the selective hydrogenation of 1-heptyne, a terminal alkyne. All catalysts were characterized by Temperature Programmed Reduction, ...
Semi-hidrogenación catalitíca de alquinos usando metales soportados
(2008-05-27)
Different factors which have influence on the semi-hydrogenation of 1-heptyne to 1-heptene were evaluated in the present thesis.
Mono and bimetallic catalysts by incipient wetness and successive impregnation techniques ...