FIELD: refractory materials production. SUBSTANCE: mortar for lining high temperature units includes aluminum, chromite concentrate and magnesium sulfate, as well as commercial alumina and magnesium sulfate at the relationship of components as follows (per cent by weight): 11 - 16 aluminum, 6 - 16 chromite concentrate, 12 - 18 magnesium sulfate, 10 - 20 commercial alumina, 41 - 50 magnesium oxide. EFFECT: 900 - 2200 C operating temperature range.
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