Methylation of Phenol over Metallic Oxides

スポンサーリンク

概要

• 論文の詳細を見る

• Methylation took place only at <I>ortho</I> position of phenol under ah atmospheric pressure at 350°C when the reaction was carried out over an MO–Fe<SUB>2</SUB>O<SUB>3</SUB> catalyst containing Cu, Mg, Ca, Ba, Zn, Mn, Co, or Ni each as M. The aromatic fraction in liquid products was only <I>o</I>-cresol and 2,6-xylenol and products substituted at <I>para</I> and <I>meta</I> positions could not be obtained. However, gasification of methanol took place simultaneously as a side reaction. From the relation between methylation and gasification, the catalytic activity was found to be effective in the order Cu>Zn>Ba>Ca>Co>Mn>Mg>Ni. Deactivation of these catalysts was observed before the reaction reaches a steady state. The thermogravimetric curve of the used catalyst was measured. From thermal analysis the reduction of the catalyst seems to be a cause of deactivation in addition to deposition of carbonaceous materials onto the catalyst surface. The used catalysts were reclaimed through the process of Scheme 1.

• 公益社団法人 日本化学会の論文

著者

• Shimokawa Katsuyoshi

  The Government Industrial Development Laboratory

• Yamamoto Mitsuyoshi

  The Government Industrial Development Laboratory

• Kotanigawa Takeshi

  The Government Industrial Development Laboratory

• Yoshida Yuji

  The Government Industrial Development Laboratory

関連論文

• The Alkylation of Phenol over the ZnO–Fe2O3 Catalyst
• Methylation of Phenol over Metallic Oxides
• Mechanisms for the Reaction of Phenol with Methanol over the ZnO–Fe2O3 Catalyst

スポンサーリンク