FIELD: manufacture of refractory articles on base of aluminum oxide.
SUBSTANCE: refractory articles are molded from charge containing waste of master alloy production process for melting titanium and its alloys of 0.16-10 mm fraction in the amount of 60-95 mass-% and binder. Waste contains the following components, mass-%: Al2O3, 85-87; Fe2O3, 0.01-0.05; CaO, 10.9-12.0. Waste is treated with 5- 65-% solution of phosphoric acid in mixing unit or in reservoir filled with acid solution after which it is dried with air, mixed with binder, molded and burnt.
EFFECT: enhanced strength and refractoriness of articles.
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