MIXTURE FOR PRODUCTION OF CERAMIC LIGHT-BROWN PIGMENT Russian patent published in 1998 - IPC

FIELD: production of ceramic pigments. SUBSTANCE: proposed mixture comprises, mas.%: product of neutralization of Ziegler-Natte catalytic complex, 78.43-93.14; iron oxide having essential formula Fe₂O₃, 4.90-19.61; boron oxide having essential formula B₂O₃, 1.96. Mentioned above product of neutralization comprises 40-60 mas. % of titanium dioxide having essential formula TiO₂ and 40-60 mas.% of aluminium oxide having essential formula Al₂O₃. Pigment has increased alkaline- and acid resistance, it is stable in melting form. EFFECT: improved quality of product, improved efficiency of the method for its production. 2 tbl