Refractory gun mix

Details Refractory gun mix Refractory gun mix

C - Chemistry, Metallurgy

04

B

6/168

C04B 35/66 (2006.01)

Patent

CA 1144307

ABSTRACT A refractory gun mix contains from 1 to 5% alkali metal phosphate, for example monosodium phosphate, sodium tripolyphosphate, or a long chain glassy polyphosphate, from 0.5 to 5% hydrated aluminum sulfate (e.g., Al2(SO4)3.14H2O), from 0.5 to 5% bentonite, and up to 10% pitch, preferably hard pitch, the balance being sized refractory grain, preferably MgO-containing and/or CaO-containing grain such as periclase, chrome ore, and/or dolomite. In a preferred embodiment, the alkali metal phosphate contributes three atoms of phosphorous for each atom of aluminum contributed by the aluminum sulfate.

370495

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