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catalytic hydrotalcites glycolysis pulp polyols
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Found 375 items.
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Polyurethane flexible foam recycling via glycolysis using Zn/Sn/Al hydrotalcites as heterogeneous catalyst
|Abstract = 373 veces | PDF = 232 veces|... . The polyol recovery from PUF was carried out via glycolysis with diethylene glycol (DEG) as a glycolysis de poliuretano (PUF). El poliol se recuperó del PUF mediante glicólisis con dietilenglicol (DEG) como agente PUF glycolysis Hydrotalcite characterization Polyol characterization PUF synthesis Conclusions ..." -
Topic index
|Abstract = 79 veces | PDF = 33 veces|... foam recycling via glycolysis using Zn/Sn/Al hydrotalcites as heterogeneous catalyst// No. 87. (Apr ..." -
SÍNTESIS POR VÍA HIDROTÉRMICA DE UN MATERIAL TIPO HIDROTALCITA BASADO EN MANGANESO Y CROMO
|Abstract = 0 veces | PDF (ESPAÑOL (ESPAÑA)) = 0 veces|... this work were synthesized by hydrothermal method, hydrotalcite materials based in Mn and Cr, under ..." -
Triglyceride transesterification in heterogeneous reaction system with calcium oxide as catalyst
|Abstract = 135 veces | PDF (ESPAÑOL (ESPAÑA)) = 22 veces|... In this work, the behavior of the CaO as a potential catalyst for the transesterification in heterogeneous reaction system with calcium oxide as catalyst Transesterificación ..." -
Preliminary
|Abstract = 83 veces | PDF = 107 veces|... .......................................70 Polyurethane flexible foam recycling via glycolysis using Zn/Sn/Al hydrotalcites ..." -
CO2 reforming of methane over Ni-Mg-Al-Ce mixed oxides derived from hydrotalcites: Mg/Ni ratio effect
|Abstract = 60 veces | PDF (ESPAÑOL (ESPAÑA)) = 38 veces|... Ni-Ce/Mg-Al catalysts were obtained by means of the hydrotalcite reconstruction method methane over Ni-Mg-Al-Ce mixed oxides derived from hydrotalcites: Mg/Ni ratio effect Carlos Enrique ..." -
Phenol hydroxylation over copper modified ZSM-5 catalysts
|Abstract = 77 veces | PDF (ESPAÑOL (ESPAÑA)) = 57 veces|... Several CuZSM-5 catalysts were prepared by hydrothermal synthesis from gels containing different increasing H2O content and reaction temperature, lowering catalyst amount, or decreasing catalyst Si ..." -
Hydrogen and carbon nanotubes production by methane decomposition over Ni°/La2 O3 obtained from LaNiO3-δ perovskite
|Abstract = 121 veces | PDF (ESPAÑOL (ESPAÑA)) = 50 veces|... of CNTs were about 4 times lower than those with reduced catalyst. Multi walled carbon nanotubes were those with reduced catalyst. Multi walled carbon nanotubes were characterized by X-ray diffraction ..." -
Jacobsen’s catalyst anchored on Al-MCM-41 and NH2 group modified Si-MCM-41 as heterogeneous enantioselective epoxidation catalyst using in situ generated dimethyldioxirane as oxidant
|Abstract = 46 veces | PDF (ESPAÑOL (ESPAÑA)) = 13 veces|... The enantioselective epoxidation of three prochiral olefins over Jacobsen’s catalyst immobilized on -47. Septiembre, 2007 Jacobsen’s catalyst anchored on Al-MCM-41 and NH2 group modified Si-MCM-41 ..." -
Esterification of rosin with methyl alcohol for fuel applications
|Abstract = 742 veces | PDF = 611 veces|... was evaluated over acid and basic heterogeneous catalysts in the presence of several solvents. In contrast was evaluated over acid and basic heterogeneous catalysts in the presence of several solvents. In contrast ..." -
Synthesis and characterization of polyurethane elastomers from polyol-suspensions of castor oil and yucca starch
|Abstract = 127 veces | PDF (ESPAÑOL (ESPAÑA)) = 61 veces|... by incorporation of yucca starch was conducted. This led to obtaining the so-called polyol-suspensions, which were characterization of polyurethane elastomers from polyol-suspensions of castor oil and yucca starch Abstract ..." -
Characterization of Diverse Fish Species as Sources of PUFAs and Omega-3 According to Their Fatty Acid Profile
|Abstract = 0 veces | PDF (ESPAÑOL (ESPAÑA)) = 0 veces|... de ácidos grasos poliinsaturados (PUFAs), específicamente de cadena larga (DHA y EPA), han tomado más fuerza , Velásquez CM, López BE. Caracterización de diversas especies de peces como fuente de PUFAs y omega 3 según ..." -
Turing pattern formation for reaction-convection-diffusion in fixed domains submitted to toroidal velocity fields
|Abstract = 68 veces | PDF (ESPAÑOL (ESPAÑA)) = 31 veces|... -reaction problems is studied specifically, considering the Schnackenberg reaction kinetics and glycolysis ..." -
Characterization by temperature programmed techniques of spent and acid treated vanadium catalysts
|Abstract = 77 veces | PDF (ESPAÑOL (ESPAÑA)) = 44 veces|... Spent samples of V2O5/SiO2-γAl2O3 catalyst used for H2SO4 production were acid treated to recover -γAl2O3 catalyst used for H2SO4 production were acid treated to recover vanadium. Fresh, spent, and ..." -
Immobilization of Jacobsen type catalysts on modified silica
|Abstract = 54 veces | PDF (ESPAÑOL (ESPAÑA)) = 24 veces|... Several immobilized Jacobsen type catalysts were covalently anchored on modified SiO2 using 3 reaction products and catalyst are in the same phase and are difficult to separate by physical-mechanical ..." -
Preparation and characterization of Mg-modified zirconias as catalysts for the direct synthesis of dimethyl carbonate (DMC)
|Abstract = 123 veces | PDF (ESPAÑOL (ESPAÑA)) = 28 veces|... In this work sol-gel zirconia was prepared using H2SO4, HNO3 or HCl as hydrolysis catalysts. Basic prepared with H2SO4 as hydrolysis catalyst. Different molar ratios of Mg were incorporated by co-gellation ..." -
Synthesis of two new Nickel and CopperNickel vanadates used for propane oxidative dehydrogenation
|Abstract = 54 veces | PDF (ESPAÑOL (ESPAÑA)) = 29 veces|... methods. Both vanadates were calcined at 600 °C and the resulting catalysts were tested on reaction catalyst [6], among others. However, these catalysts yields do not exceed 24 %. Different factors make ..." -
Oligomerization of propene over ZSM-5 modified with Cr and W
|Abstract = 115 veces | PDF (ESPAÑOL (ESPAÑA)) = 28 veces|... substitution and ion exchange, and the resulting catalysts were evaluated in the oligomerization of propene. ]. This oligomerization reaction is carried out in the presence of an acid catalyst, and consists of two ..." -
Study of hydration of cement pastes added with used catalytic cracking catalyst (FCC) from a colombian refinery
|Abstract = 76 veces | PDF (ESPAÑOL (ESPAÑA)) = 27 veces|... in Colombia, known as used catalytic cracking catalyst (FCC), in the hydration process of cementitious pastes colombiana Study of hydration of cement pastes added with used catalytic cracking catalyst (FCC) from ..." -
Effect of substrate and catalyst chirality on the diastereoselective epoxidation of R-(+)-limonene with manganese(III) salen complexes
|Abstract = 45 veces | PDF (ESPAÑOL (ESPAÑA)) = 21 veces|... The asymmetric epoxidation of R-(+)-limonene in the presence of the Jacobsen´s catalyst in its de manganeso(III) Effect of substrate and catalyst chirality on the diastereoselective epoxidation of R ..." -
Producción de biodiesel de aceite crudo de palma mediante catálisis heterogénea
|Abstract = 176 veces | PDF (ESPAÑOL (ESPAÑA)) = 66 veces|... were catalyst type, temperature and time. * Autor de correspondencia: teléfono: + 57 + 4 + 219 65 87 ..." -
Enantioselective epoxidation of styrene using in-situ generated dimethyldioxirane and dimeric homochiral Mn(III)-Schiff base complex catalyst
|Abstract = 331 veces | PDF = 287 veces|... ) and dimeric homochiral Mn(III)-Schiff base catalyst 1 has been explored. The parameters evaluated were olefin )-Schiff base complex catalyst Epoxidación enantioselectiva de estireno usando dimetildioxirano generado ..." -
Nopol synthesis from β-pinene and turpentine oil over Sn-MCM-41
|Abstract = 125 veces | PDF (ESPAÑOL (ESPAÑA)) = 28 veces|... . The catalyst was synthesized by chemical vapor deposition using a Sn salt over MCM-41. Reactions were carried paraformaldehyde over Sn-MCM-41. The catalyst was synthesized by chemical vapor deposition using a Sn salt over ..." -
Determination of setting time of cement-based hydroxyapatite and galactomannan extracted from Adenanthera pavonina L. seeds by the resonant cavity method
|Abstract = 0 veces | PDF (ESPAÑOL (ESPAÑA)) = 0 veces|... water), HAGJET (75 wt% of Hap, 25% of Gal powder with 0.10 mL of catalyst commercial JET (methyl distilled water), HAGJET (75 wt% of Hap, 25% of Gal powder with 0.10 mL of catalyst commercial JET (methyl ..." -
Catalytic oxidation of dichloromethane over sol-gel oxides supported Pd or Ni
|Abstract = 72 veces | PDF (ESPAÑOL (ESPAÑA)) = 23 veces|... Several supported Pd or Ni catalysts were synthesized by the sol-gel method using ã-alumina ----------------------------------------------------------------------------------------------------------------------------------------- 50 --------------- Universidad de Antioquia type of support. The durability of the best catalyst ..."
