Still containing the original charge o f Alcoa Activated Alumina, this Lectrodryer unit has been drying annealing furnace gas to dew points below minus 9 0 ° F for more rfian 19 years.
ÀttO&Mwatèd Alumina $^;âvr^âff(B: 19 years of continuous performance for U.S. Steel In the manufacture of silicon steel products at Vandergrift, Pa., United States Steei Corporation uses great care in the control of annealing-furnace atmosphere. The absence of moisture in the gas is as important as its composition. A reliable drying agent is essential. Therefore, ALCOA Activated* Aiurnina was selected as drying agent 19 years ago—and the original charge is still in use, drying 15,000 cu ft of gas per hour, on a 12-hour cycle, day in and day out. That's a real performance record in anybody's language. ALCOA Activated Alumina is the "old reliable" among drying agents, widely u s e d throughout industry to dry liquids and gases to lower dew points • R e g i s t e r e d T r a d e m a r k , Aluminum Co. o f A m e r i c a
than any other commercial adsorbent. I t is commercially pure . . . highly inert . . . resists thermal and mechanical shock, crushtingand abrasion. Now the new H-l51 gel type Activated Alumina provides all of th«esequalities plus even longer life . . . higher capacity.. . greater physical stability. Investigate ALCOA Activated Aluminas today. They offer remarkable properties— and savings—to desiccant users. Write to ALUMINUM COMPANY OF AMERICA, CHEM7 0 4 - L , Alcoa Building, Pittsburgh 19, Pennsylvania. ICALS DIVISION,
Alcoa Chemical A L U M I N U M
4950
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