Dry granular calcined magnetic fraction obtained from chrysotile

Details Dry granular calcined magnetic fraction obtained from chrysotile Dry granular calcined magnetic fraction obtained from chrysotile

1980-03-06

1982-03-16

Thomas, Earl C.

Compositions

Magnetic

Iron-oxygen compound containing

501112, 252 6264, C04B 3504, C04B 3514

Patent

active

043200222

ABSTRACT:
There is disclosed a dry granular calcined magnetic fraction obtained from chrysotile asbestos tailings comprising as its main constituents from 25 to 43% MgO, from 25 to 43% SiO.sub.2, from 15 to 40% iron expressed as Fe.sub.2 O.sub.3, and an MgO/SiO.sub.2 ratio of from 0.8:1 to 1.3:1, said granular material passing a 4 mesh sieve. The novel product is useful for the preparation of heat storage cores and refractory bricks for glass tank checkers or blast furnace stoves.

REFERENCES:
patent: 2691443 (1954-10-01), Schoenlaub
patent: 3178298 (1965-04-01), Craig
patent: 3193503 (1965-07-01), Smith
patent: 3446668 (1969-05-01), Arrance et al.
patent: 3785842 (1974-01-01), Murray
patent: 3959001 (1976-05-01), Clasen

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