Epoxidation of the polyisobutene using WO3/ZrO2catalyst
β Scribed by Mei Li, Zhiming Chen
- Book ID
- 118809669
- Publisher
- Springer Netherlands
- Year
- 2012
- Tongue
- English
- Weight
- 210 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0922-6168
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π SIMILAR VOLUMES
Catalysts in the WO 3 -ZrO 2 system were produced by coprecipitation of aqueous solutions of zirconium oxynitrate and ammonium metatungstate. Samples were characterized by X-ray powder diffraction, thermogravimetry, and refinement of their crystalline structures with the Rietveld method. This coprec
WO 3 /ZrO 2 catalysts were prepared by coprecipitation with 5, 10, 15, 19, and 25 wt.% WO 3 . These catalysts were characterized by XRD, BET, FTIR photoacoustic spectroscopy (pyridine adsorption), and NH 3 -TPD, and tested for the acetylation of anisole with acetic anhydride. The catalytic yields of