COMPOSITION FOR LIGHTWEIGHT REFRACTORY PRODUCTION Russian patent published in 2017 - IPC C04B28/06 C04B35/66 C04B38/08 C04B111/20 

FIELD: chemistry.

SUBSTANCE: composition for lightweight refractory manufacture comprises a refractory filler based on alumina, a binder, a dispersing agent, water and polystyrene, electrocorundum with 0.045-0.115 mm fraction and fine-milled calcined alumina are used as a refractory filler at a ratio of (4.86-4.98):1, high alumina cement is used as a binder, and dispersed alumina is used as a dispersing agent. The ratio between the composition ingredients is established as follows, wt %: electrocorundum with 0.045-0.115 mm fraction 61.80-64.00; fine-milled calcined alumina 12.40-13.00; high alumina cement 8.25-8.75; dispersed alumina 0.83-0.88; EPS 3.40-3.80; the rest is water.

EFFECT: increased product strength and reduced energy consumption during lightweight refractories production.

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