Chrome-magnesite refractories and method of preparation

Details Chrome-magnesite refractories and method of preparation Chrome-magnesite refractories and method of preparation

1984-06-11

1986-03-04

Williams, Howard S.

Compositions: ceramic

Ceramic compositions

Refractory

501117, C04B 3512

Patent

active

045741190

ABSTRACT:
A refractory brick made from a size graded batch comprising 20-30 weight percent magnesite containing less than 0.8 weight percent silica, and the balance a chrome ore. The chrome ore includes oxides of chromium, aluminum and iron wherein the ratio between the oxides of chromium and the oxides of aluminum and iron is greater than 2 to 1. The silica content of the chrome ore is less than 2.7 weight percent, the iron oxide content is less than 17 weight percent, and the chrome ore to magnesite ratio is between 2.33 to 4 to 1.

REFERENCES:
patent: 1845968 (1932-02-01), Heur
patent: 2053146 (1936-09-01), Harvey et al.
patent: 2077796 (1937-04-01), Harvey et al.
patent: 2270220 (1942-01-01), Pitt et al.
patent: 3180743 (1965-04-01), Davies et al.
patent: 3192058 (1965-06-01), Davies et al.

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