YELLOW BISMUTH PHOSPHOVANADATE AND/OR SILICOVANADATE-BASED PIGMENTS, AND METHODS FOR PREPARING SAME

摘要

Yellow bismuth vanadate-based mineral pigments having the following chemical formula: Bia Lb Mc Nd O4, wherein L is Si or simultaneously Si and one or more elements chosen from Ti, Ge or Zr, or simultaneously Si and one or more elements chosen from Ti, Ge or Zr and one or more elements chosen from group IIIa; M is V or simultaneously V and an element chosen from group Vb; N is Mo or W; a varies between 1 and 4/3 and b, c and d vary between 0 and 1, with the proviso that c is greater than 0.