Patent ID: 10233107

Abstract:
An unshaped product including a particulate mixture containing: a coarse fraction, representing >50%<91% of particulate mixture, in mass percentage, and containing particles size ≥50 μm, “coarse particles”, and matrix fraction, forming remainder up to 100% of particulate mixture, and containing particles sizes <50 μm, product having chemical analysis, in mass percentage based on oxides of product, such: −45%<Al2O3, −7.5%<SiO2<35%, −0%≤ZrO2<33%, providing 10%<SiO2+ZrO2<54%, −0.15%<B2O3<8%, other oxides: <6%, Al2O3 forming remainder up to 100%, coarse fraction including more than 15% coarse particles having size >1 mm, in mass percentage based on particulate mixture, matrix fraction having a chemical analysis, in mass percentage based on oxides of matrix fraction, such: Al2O3+SiO2+ZrO2>86%, providing 35%<Al2O3.