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Citation: LI Ming-Xiu, GAO Yuan-Zhe, WANG Ji-Ye. Effect of Erbium Additive on the Catalytic Property of Mo-Bi-O[J]. Chinese Journal of Applied Chemistry, ;2003, 20(3): 242-245. shu

Effect of Erbium Additive on the Catalytic Property of Mo-Bi-O

1.
College of Chemistry, Hebei Normal University, Shijiazhuang 050091

Corresponding author: LI Ming-Xiu,
Received Date: 6 August 2002
Available Online: 15 November 2002
Fund Project: 河北省科学技术厅(002130103D) (002130103D)河北省自然科学基金(200151)资助项目 (200151)

Erbium oxide was added to Bi₂O₃-MoO₃ mixed oxides catalyst(Mo-Bi-O) via coprecipitation. Reaction temperature, concentration of isobutene in air and ratio of Er₂O₃ in the Mo-Bi-O catalysts were studied in a fixed bed reactor. The results showed that conversion of isobutene and selectivity for methacrolein was improved when erbium oxide was added in the catalyst. The maximum yield of methacrolein was obtained when proportion of erbium reached 15%. XRD patterns of the catalyst samples revealed that the main component of the Mo-Bi-O catalyst with added erbium is Er₂Mo₃O₁₂.
- moly bdenum bismuth mixed oxide catalyst,
- erbium oxide,
- isobutene,
- methacrolein,
- selective oxidation
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