MIXTURE FOR PRODUCTION OF MELT REFRACTORY MATERIALS Russian patent published in 1997 - IPC

FIELD: production of refractory materials. SUBSTANCE: mixture comprises, mas.%: baddeleyite concentrate, 85-90; and stabilizing additive, 10-15. Product of processing of apatite is used as said stabilizing additive. Mentioned above product comprises, mas.%: oxides of rare-earth elements, 10-11; strontium oxide, 6.0-6.5; calcium oxide, 40.0-45.0; fluorine, 33.0-40.0; impurities, 3.2-4.7. Apparent density of refractory powder is 5.6-5.8 g/cm², its compressive strength is 600-650 n/mm². EFFECT: improved quality. 2 tbl