Unburnt refractory masses or bricks for metallurgical vessels ba

Details Unburnt refractory masses or bricks for metallurgical vessels ba Unburnt refractory masses or bricks for metallurgical vessels ba

1977-08-24

1978-09-19

McCarthy, Helen M.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 59, 106 66, 266275, 266280, 266284, C04B 3552, C04B 3512, C04B 3542

Patent

active

041151330

ABSTRACT:
An unburnt refractory mass, which can be in the form of a brick, for use in vessels employed in metallurgical refining consisting essentially of chromium-ore, sintered magnesia and a carbon-containing binder, said mass consisting essentially of:
75 to 95% by weight chromium ore having a Cr.sub.2 O.sub.3 content of at least 30% by weight;
0 to 19% sintered magnesia poor in iron content; and
2 to 7% hard pitch combined with 1.5 to 5% carbon so as to provide an overall residual carbon of 3 to 6%.

REFERENCES:
patent: 3236664 (1966-02-01), Wilson et al.
patent: 3256104 (1966-06-01), Weaver
patent: 3312457 (1967-04-01), Schweinsberg et al.
patent: 3351476 (1967-11-01), Weaver et al.
patent: 3354940 (1967-11-01), Walther et al.
patent: 3416779 (1968-12-01), Campbell
patent: 3421749 (1969-01-01), Garber et al.
patent: 3775140 (1973-11-01), Visser et al.
patent: 4049461 (1977-09-01), Mort et al.

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