Influence of the Way of Preparing Vanadium Phosphorus Oxide (VPO) Precursor and Introducing Multi-Addities on the Reaction Performance

摘要

The VPO system synthesized in aqueous medium and doped with Mo, Zr and Zn showed high maleic anhydride (MA) selectivity at fair butane conversion. The catalytic performance was found to depend not only on the sort of additive but also on the preparation history of the VPO base and the manner of introducing the additive.