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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2009> 18(2): 229-232
LUO Sheng-jun, CHI Ying-nan, HU Chang-wen. Polyoxometalates Pillared Hydrotalcite: Synthesis and Catalysis in Transesterification of Dimethyl Carbonate and Phenol[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2009, 18(2): 229-232.
Citation: LUO Sheng-jun, CHI Ying-nan, HU Chang-wen. Polyoxometalates Pillared Hydrotalcite: Synthesis and Catalysis in Transesterification of Dimethyl Carbonate and Phenol[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2009, 18(2): 229-232.
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Polyoxometalates Pillared Hydrotalcite: Synthesis and Catalysis in Transesterification of Dimethyl Carbonate and Phenol

  • 1.

    School of Science, Beijing Institute of Technology, Beijing 100081, China;Qingdao Institute of Bioenergy and Bioprocess Technology, CAS, Qingdao 266101, China

  • 2.

    School of Science, Beijing Institute of Technology, Beijing 100081, China

  • 3.

    School of Science, Beijing Institute of Technology, Beijing 100081, China;State Key Laboratory of Explosion \Science and Technology, Beijing Institute of Technology, Beijing 100081, China

  • Received Date:2008-05-19
    Abstract
  • The salts of para-tungstic and para-molybdic were heterogenized for their effective use as solid catalysts in the transesterification reaction of dimethyl carbonate and phenol by inserting them between the layers of Mg 2Al-hydrotalcite. These catalysts were characterized by FT-IR spectra and X-ray powder diffraction. Polyoxometalates (POMs) clusters were intercalated into the interlayer of layered double hydroxide (LDH) via anion exchange with organic acid precursor in Mg 2Al-LDH, and the integrity of the clusters 6-and 6-was maintained. The intercalated para-molybdic cluster showed high catalytic activity and reusability in the transesterification under mild reaction conditions. When the reaction was carried out at 180?℃, with a molar ratio of phenol to DMC of 1∶1, a reaction time 10?h, and a catalyst amount 1%(wt), the conversion of phenol was 10.0%, the selectivities of diphenyl carbonate and methyl phenyl carbonate were 10.7% and 86.1%, respectively.
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    • References (17)
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