After decomposing zircon with NaOH at around 850 ◦C, decomposed products (Na2ZrSiO5 and Na2ZrO3) were used as raw materials to produce zircon pigments and Pr, Fe and V oxides were used as colouring agents
After decomposing zircon with NaOH at around 850 ◦C, decomposed products (Na2ZrSiO5 and Na2ZrO3) wereused as raw materials to produce zircon pigments and Pr, Fe and V oxides were used as colouring agents