Refractory composition and method for preparation
AssigneeN L Industries, Inc.
InventorsEverett A. Thomas, Ronald W. Knake
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Abstract
An improved refractory composition has been prepared which is particularly satisfactory for use in glass furnace applications. The composition comprises the following ingredients: ______________________________________ Alumino-Silicate 45 - 70% Calcined Alumina 5 - 15% Zircon 15 - 35% Clay 1 - 5% Pyrophyllite 1 - 5% ______________________________________
Claims10
A refractory composition comprising from 45% to 70% alumino-silicate, from 5% to 15% calcined alumina, from 15% to 35% zircon, from 1% to 5% clay and from 1% to 5% pyrophyllite, said alumino-silicate containing from 45% to 75% alumina.
A method for preparing a refractory body which comprises forming a mixture containing from 45% to 70% alumino-silicate from 5% to 15% calcined alumina, from 15% to 35% zircon, from 1% to 5% clay and from 1% to 5% pyrophyllite, pressing said mixture in a die and firing the mixture to form the refractory body, said alumino-silicate containing from 45% to 75% alumina.
Dependencies are inferred from the claim text.