Improved process for the preparation of Bismuth VANADATE and compounds containing Bismuth VANADATE

摘要

The present Invention relates to an improved process for the preparation of Bismuth VANADATE And Compound containing Bismuth VANADATE,Where the precursor materials are Calcined at high temperatures, the Improvement comprises the steps of Wet grinding in the Calcined product,The Calcined Product put in contact with alkaline material to provide a sufficient level of pH from 7.0 to 13.0, and recover the product treated with the wet grinding the Calcined product, either in the presence of alkaline material, or material prior to contact with the calcalino referred.