COMPOUND FOR MOLDING MAIN REFRACTORIES Russian patent published in 2001 - IPC

FIELD: manufacture of refractory compounds and products used in units for melting ferrous, non-ferrous metals, alloys and precious metals and alloys. SUBSTANCE: CaO-based refractory compounds have resistance to hydration and contain no toxic and fire hazard components due to the fact that compound comprising free lime in clinker form and binder consisting of plasticizer and water repellent agent, plasticizer is solution of lignosulfonates or polyvinyl alcohol, and water repellent agent is monosubstituted calcium orthophosphate (double superphosphate), rations of components being as follows, wt %: CaO-containing clinker, 92.0-95.8; aqueous solution of lignosulfonates or polyvinyl alcohol, 4.0-6.0; and monosubstituted calcium orthophosphate (double superphosphate), 0.2-2.0. EFFECT: improved properties of the compounds. 1 tbl