YELLOW PIGMENTS BASED phosphovanadate BISMUTH AND silicovanadate BISMUTH AND METHODS FOR PREPARING.

摘要

Inorganic yellow pigments based on bismuth vanadate characterized in that they correspond to the following chemical formula: Bia Lb Mc Nd O4 wherein: L is Si or Si and simultaneously one or more elements of the group Ti, Zr or Ge; M is V or V and simultaneously one or more elements of Nb or P group; N is Mo or W may vary from 1 to 1.333 and b, c, d, from 0 to 1 with the proviso that c is greater than 0 and M must represent simultaneously V and P, P and Nb when b is zero. These pigments find use in the plastics industry and industrial paints such.