CeO 2 -Promoted Highly Active Catalyst, NiSO 4 /CeO 2 -ZrO 2 for Ethylene Dimerization
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DOI: 10.5012/BKCS.2006.27.12.1989
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摘要: The NiSO 4 /CeO 2 -ZrO catalysts containing different nickel sulfate and CeO contents were prepared by the impregnation method, where support, was coprecipitation method using a mixed aqueous solution of zirconium oxychloride cerium nitrate followed adding an ammonia solution. No diffraction line observed up to 20 wt %, indicating good dispersion on surface . addition (or ) ZrO shifted phase transition from amorphous tetragonal higher temperatures because interaction between A catalyst (10-NiSO /1-CeΟ 10 % 1 mole , calcined at 600 °C exhibited maximum catalytic activity for ethylene dimerization. activities correlated with acidity measured chemisorption method. role form thermally stable solid zirconia consequently give high area, thermal stability sample.
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