Process for manufacturing cordierite compositions

Details Process for manufacturing cordierite compositions Process for manufacturing cordierite compositions

1983-02-18

1984-02-28

Bell, Mark

Compositions: ceramic

Ceramic compositions

Refractory

501119, 501155, C04B 3504, C04B 35l8, C04B 3520

Patent

active

044342390

ABSTRACT:
A process for the manufacture of industrial cordierite ceramic units containing from 45 to 68% by weight of silica 16 to 37% by weight of magnesia and 12 to 45% by weight of alumina which comprises (a) mixing from 15 to 60% by weight of the non-magnetic fraction of asbestos tailings having a MgO:SiO.sub.2 of from 0.8 to 1.25 with 40 to 85% of a kaolin clay by weight and 0 to 10% of alumina; (b) shaping said mixture in green unit forms; (c) curing said units at room temperature for 24 h then at 110.degree. C. for 24 h; (d) firing said cured units at a temperature of from 1350 1400.degree. C.

REFERENCES:
patent: 3954672 (1976-05-01), Somers et al.
patent: 3979216 (1976-09-01), Fritsch et al.
patent: 4001028 (1977-01-01), Frost et al.
patent: 4015048 (1977-03-01), Martin
patent: 4063955 (1977-12-01), Fritsch et al.
patent: 4125408 (1978-11-01), Dieper
patent: 4287167 (1981-09-01), Aitcin
patent: 4320022 (1982-03-01), Aitcin

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