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Citation: XU Lei, WU Shu-Jie, ZHANG Wen-Xiang, JIA Ming-Jun, LIU Gang. Vapour Phase ortho-Selective Alkylation of Phenol with Methanol over Fe-Zr Oxide Catalysts[J]. Acta Physico-Chimica Sinica, ;2009, 25(02): 242-246. doi: 10.3866/PKU.WHXB20090208 shu

Vapour Phase ortho-Selective Alkylation of Phenol with Methanol over Fe-Zr Oxide Catalysts

1.
College of Chemistry, Jilin University, Changchun 130021, P. R. China

Received Date: 25 August 2008
Available Online: 16 December 2008

Fe-Zr oxides with different Zr/Fe molar ratios were prepared by a co-precipitation method and used as catalysts for the vapor phase ortho-selective alkylation of phenol with methanol. Results showed that the Fe-Zr oxide catalysts had relatively high activity and ortho-selectivity. Among them, the sample with nZr/nFe=0.5/100 exhibited the highest activity (99.2% phenol conversion) with a selectivity of 22.6% to o-cresol and 77.0% to 2,6-xylenol. An increase in reaction temperature could further improve selectivity for 2,6-xylenol. The presence of relatively strong acid-base sites may be responsible for the high phenol conversion and the high 2,6-xylenol selectivity.
- Phenol; Methanol; ortho-Selective alkylation; o-Cresol; 2,6-Xylenol
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