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Title of Journal: Catal Lett

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Abbravation: Catalysis Letters

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Springer US

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DOI

10.1007/bf00233568

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1572-879X

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Dialkylation of Naphthalene with Isopropanol Over

Authors: M Ghiaci B Aghabarari V Rives M A Vicente I Sobrados J Sanz
Publish Date: 2010/02/23
Volume: 136, Issue: 1-2, Pages: 141-149
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Abstract

AlMCM41 materials with SiO2/Al2O3 molar ratios 20 70 110 150 200 and SiMCM41 were synthesized following standard procedures and loaded with different amounts of H3PO4 The catalysts were well characterized by powder Xray diffraction XRD nitrogen adsorption studies and solid state 29Si 27Al 31P 23Na and 1H MAS NMR spectroscopy Acidity measurement by FTIR spectroscopy monitoring of pyridine adsorption reveals that the incorporation of Al in the framework generates Brønsted and Lewis acidity which increases with the increase in metal content By loading H3PO4 on the AlMCM41 Brønsted sites increases substantially but the Lewis sites decrease to a large extent Liquid phase isopropylation of naphthalene with isopropanol in nhexane under autogeneous pressure was performed in the temperature range 473–623 K The optimum feed molar ratio was found to be 1210 naphthaleneisopropanolnhexane where the naphthalene conversion reaches to 855 The βand ββselectivities over 30 wt H3PO4/AlMCM41200 were 970 and 848 respectively at 855 conversion The main products of the reaction mono and diisopropylnaphthalenes were analyzed and identified by gas chromatography and confirmed by GC–MS The conversion and selectivity of the products are discussed from the point of view of catalyst characteristics and reaction conditions

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  2. Oxygen-Nonstoichiometric YBaCo 4 O 7+δ as a Catalyst in H 2 O 2 Oxidation of Cyclohexene
  3. Enhanced Low-Temperature Activity of Ag-Promoted Co-ZSM-5 for the CH 4 -SCR of NO
  4. Hydrogenation of m -Dinitrobenzene Over Pt Supported Catalysts on TiO 2 –Al 2 O 3 Binary Oxides
  5. Synthesis of Two Novel Water-Soluble Iron Phthalocyanines and Their Application in Fast Chromogenic Identification of Phenolic Pollutants
  6. Metal Support Interactions in Co 3 O 4 /Al 2 O 3 Catalysts Prepared from w/o Microemulsions
  7. Effect of CeO 2 Doping on Structure and Catalytic Performance of Co 3 O 4 Catalyst for Low-Temperature CO Oxidation
  8. Application of Inelastic Neutron Scattering to the Methanol-to-Gasoline Reaction Over a ZSM-5 Catalyst
  9. Catalytic Method for N -Methyl-4-pyridone Synthesis in the Presence of ZnAl 2 O 4
  10. Oxidation of Olefins Using Rhenium Supported by Imidazole-Functionalized Amphiphilic Copolymers
  11. Radiochromatographic studies of isobutylene oxidation over SnO 2
  12. Effect of Enhanced Support Acidity on the Sulfate Storage and the Activity of Pt/γ-Al 2 O 3 for NO Oxidation and Propylene Oxidation
  13. Synthesis, Characterization and Catalytic Properties of Chiral BINOL Functionalized Mesoporous Silicas for Enantioselective Morita-Baylis-Hillman Reaction
  14. Effect of Mg Addition on the Physical and Catalytic Properties of Cu/CeO 2 for NO + CO Reduction
  15. Deep HDS of Diesel Fuel: Inhibiting Effect of Nitrogen Compounds on the Transformation of the Refractory 4,6-Dimethyldibenzothiophene Over a NiMoP/Al 2 O 3 Catalyst
  16. Mechanochemical Synthesis and Electrochemical Characterization of Nano Crystalline Calcium Ferrite
  17. Preparation, Characterization and Reactivity of Keggin Type Phosphomolybdates, H 3−2 x Ni x PMo 12 O 40 and (NH 4 ) 3−2 x Ni x PMo 12 O 40 , for Adipic Acid Synthesis
  18. Functionalized Poly(ethylene glycol)-Stabilized Palladium Nanoparticles as an Efficient Catalyst for Aerobic Oxidation of Alcohols in Supercritical Carbon Dioxide/Poly(ethylene glycol) Biphasic Solvent System
  19. Synthesis of CaIn 2 O 4 Rods and Its Photocatalytic Performance Under Visible-light Irradiation
  20. Glycerol hydrogenolysis to propylene glycol
  21. Glycothermal Synthesis and Catalytic Properties of Nanosized Zn 1− x Co x Al 2 O 4 ( x = 0, 0.5, 1.0) Spinels in Phenol Methylation
  22. Fe 3 O 4 Nanoparticles-Supported Palladium-Bipyridine Complex: Effective Catalyst for Suzuki Coupling Reaction
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  28. Different Catalytic Reactions of n -Hexane and 1-Hexene on Molybdenum Based Catalysts
  29. Palladium-Schiff Base Complex Immobilized Covalently on Magnetic Nanoparticles as an Efficient and Recyclable Catalyst for Heck and Suzuki Cross-Coupling Reactions
  30. From Gas to Liquid Phase Sulfidation: An IR Spectroscopy Study
  31. “An American Scientist: The Autobiography of Gabor A Somorjai with Mitch Jacoby”
  32. Low-Temperature CO Oxidation of Gold Catalysts Loaded on Mesoporous TiO 2 Whisker Derived from Potassium Dititanate
  33. Hydrogen Production by Steam Reforming of Liquefied Natural Gas over Mesoporous Ni-Al 2 O 3 Catalysts Prepared by a Co-Precipitation Method: Effect of Ni/Al Atomic Ratio
  34. Liquid-Phase Selective Hydrogenation of 1-Heptyne over Pd/TiO 2 Catalyst Synthesized by One-Step Flame Spray Pyrolysis
  35. Nanocatalysis I: Synthesis of Metal and Bimetallic Nanoparticles and Porous Oxides and Their Catalytic Reaction Studies
  36. Copper-Catalysed One-Pot Synthesis of 2,3,4,9-Tetrahydro-1 H -Xanthen-1-Ones from 2-Halobenzylbromides and Cyclic-1,3-Diketones in Water
  37. Selective hydrogenolysis of glycerol to propylene glycol on Cu–ZnO catalysts
  38. Reduction of N -(alkoxy(aryl)methyl)benzamide Compounds by a Hantzsch Ester 1,4-Dihydropyridine Using Pd/C as a Catalyst
  39. Role of Baria Dispersion in BaO/Al 2 O 3 Catalysts for Transesterification
  40. Peculiarities of dehydroaromatization of CH 4 –C 2 H 6 and CH 4 over Mo/ZSM-5 catalysts
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