Selective oxidation of toluene to benzoic acid catalyzed by modified vanadium oxides

✍ Scribed by Jun Miki; Yo Osada; Takeshi Konoshi; Yakudo Tachibana; Tsutomu Shikada

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 589 KB
• Volume: 137
• Category: Article
• ISSN: 0926-860X
• DOI: 10.1016/0926-860x(95)00304-5

✦ Synopsis

A variety of oxides were examined as additives to a V2Os/TiO 2 catalyst in order to enhance the catalytic performance for the vapor phase oxidation of toluene to benzoic acid. It was found that the modification with SeO2, TeO 2 or Sb20 3 greatly promoted the title reaction leading to improved catalyst performance in terms of toluene conversion and benzoic acid selectivity. The effect of reaction temperature, O2/toluene ratio, steam/toluene ratio and durability were also investigated in order to reveal the catalytic features of the modified catalyst systems.