Glass forming compound and brick made therewith

Details Glass forming compound and brick made therewith Glass forming compound and brick made therewith

1980-02-15

1981-12-01

Bell, Mark

Compositions: ceramic

Ceramic compositions

Refractory

106 69, C04B 3510, C04B 3514

Patent

active

043034497

ABSTRACT:
A glass forming compound having in its melted glass phase the formula Si.sub.2 AlO (PO.sub.4).sub.3 or 4 SiO.sub.2.Al.sub.2 O.sub.3.3P.sub.2 O.sub.5 is provided together with grain mixtures for producing refractory thermally insulating bricks adapted for use in the preheating zone of a rotary cement kiln operating in an atmosphere containing alkali chlorides, particularly KCl. The bricks develop a glass layer on the kiln exposed face thereof which resists penetration by alkalis, particularly KCl.

REFERENCES:
patent: 1964629 (1934-06-01), Grimm et al.
patent: 2359789 (1944-10-01), Pincus
patent: 3236662 (1966-02-01), MacDowell
patent: 3944352 (1976-03-01), Morgan
Robinson, P. et al. "Subsolidus Relations in the System SiO.sub.2 -Al.sub.2 O.sub.3 -P.sub.2 O.sub.5 " JACS vol. 47, No. 11, pp. 587-592.

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