REFRACTORY MASS Russian patent published in 2000 - IPC

FIELD: machine engineering, metallurgy. SUBSTANCE: invention relates to compositions of refractory masses for foundry production and production of refractory materials. Developed refractory composition has the following components, wt. -%: refractory clay, 80-95; quartz-tourmaline waste of Solnechny mining-enriching plant of Komsomol district, 5-20. Quartz-tourmaline waste has the following composition, wt. -%: Al₂O₃, 13.75; SiO₂, 61.15; Fe₂O₃, 5.00; FeO, 8.10; TiO₂, 0.68; CaO, 1.20; MgO, 3.30; Na₂O, 1.25; K₂O, 1.60; B₂O₃, 1.90; calcination loss, 2.02. EFFECT: decreased energy capacity of production of refractory articles, improved physical-mechanical properties. 1 tbl