.Taylor Sillimanite-Fortified (Tasil-F) refractories* — Λvidely used in the glass and metallurgical industries for those critical furnace areas subjected to b a t c h carry over or fluxes at high temperatures—are fortified with ALCOA Alumina.
This photo shows the excellent condition of Taylor Sillimanite-Fortified (with ALCOA Alumina) brick and burner block in the back port of a cross-fired continuous glass container tank. After 276 operating days, the Tasil-Fortified (Tasil-F) brick extended 2>£" to 3 " beyond the adjacent super-duty fire clay brick. Note also t h a t the burner opening or throat changed very little in either shape or dimension. This tank melted alternately flint and opal glasses at approximately
2700°-2750° F . for a total of 78 days on flint, 198 on opal. Total combined production was 11,131 tons con sisting of 8,251 tons opal and 2,880 tons flint. Bricks and shapes fortified with ALCOA Alumina are outstanding for high hot load strength and volume stability at temperatures above 2900° F. Their higher operating efficiency for the entire life of the refractory actually makes them the most economical to buy. W e do not make refractories, b u t we will gladly refer you to reliable sources. Write to: ALUMINUM COMPANY
OF
AMERICA,
CHEMICALS
DIVISION,
604D
Gulf Building, Pittsburgh 19. Pennsylvania. *Manufactured by The Chas. Taylor^s Sons Co., Cincinnati, *'Refractorers to industry since 1864.'1''
Ohio,
Alcoa Chemicals ALUMIMAS €and FLUOflSPiS ACTIVATED ALUMINAS · CALCINED ALUMINAS · HYDRATED ALUMINAS · TABULAR ALUMINAS · LOW SODA ALUMINAS ALUMINUM FLUORIDE · SODIUM FLUORIDE · SODIUM ACID FLUORIDE · FLU0B0RIC ACID · CRYOLITE · GALLIUM
V O L U M E
3 0,
NO.
14
»
APRIL
7,
1952
1447
