MIXTURE FOR MANUFACTURE OF REFRACTORIES Russian patent published in 1995 - IPC

FIELD: refractory industry. SUBSTANCE: mixture for manufacture of refractories has refractory filler, metal as reducer and oxidizer, and reducer is taken in form of metal from group including Al, Zr, Mg and Ti. Used as binding agent is lignosulfonate, and filler is used in form of nitride and/or carbide of aluminium or titanium, or silicon with the following quantities of components, mas. reducer from group including Al, Zr, Mg, Ti 8.0-15.0; oxidizer 39.0- 68.8; lignosulfonate 0.2-1.5; nitride and/or carbide of aluminium, or titanium, or silicon 23.0-44.5. Oxidizer is used in form of alumosilicate or carbonate from the group including Mg, Ca, Sr, Ba, Zr. Oxidizer and reducer particles sizing 10-200 mcm, and filler particles sizing 0.01-35 mm. Refractories of produced material is 1900-1950 C, bending strength of 57.5-62 kgf/sq.mm. EFFECT: higher strength and slag resistance. 2 cl, 2 tbl