REFRACTORY MASS Russian patent published in 2003 - IPC

FIELD: refractory materials. SUBSTANCE: refractory mass for materials appropriate for repairing and manufacturing steel-casting ladles, lining furnace assemblies, petroleum and gas processing assemblies, carbon black production reactors, etc. contains chemical and refractory production wastes in following proportions, wt %: Al₂O₃ 35-66, Cr₂O₃ 6-10, MgO 2-6, CaO 1.5-6, P₂O₅ 3-12, TiO₂ 0.1-2.5, and SiO₂ 6-45. When preparing mass, wastes containing aluminum and chromium oxides are wetted with excess of phosphoric solution and kept for 2 days, after which remaining components are loaded into mixer, supplemented by preliminarily obtained mix, stirred, and allowed to stand in mixer for one day to complete reaction. EFFECT: improved quality of chemically stable refractory mass and lowered expenses owing to using easily accessible waste materials. 2 tbl