See why ALCOA ALUMINUM makes a good design habit Requirement: Increase original service life of process equipment Key to Good Design: Use Alcoa Aluminum to combat corrosion ment at extremely low temperatures makes it particularly attractive. Good examples are the production of hydrogen, helium, oxygen, and various other cryogenic substances. There's an area in your process where ALCOA Aluminum can help cut costs or improve efficiency. ALCOA can help you specify the alloy you need from the wide range available. Each offers specific advantages, and there is one certain to fit your requirements. ALCOA engineers have worked closely with all segments of the process industries for over 40 years, and their unparalleled experience in this field is available to you for the asking. Write to the address on the coupon, stating your requirements as specifically as possible. ALCOA'S development engineers will welcome the opportunity to work with you on your problems. You also can take advantage of the wide selection of free ALCOA literature on aluminum for process equipment. Simply check the booklets you want on the coupon and mail to the address indicated. ALCOA will forward your material promptly and without obligation. ALCOA is conducting a series of engineering conferences on process industries applications of aluminum during 1960 in a number of major cities. Contact your nearest ALCOA sales office for full particulars and dates.
Fighting corrosion is one of many ways aluminum can increase the original service life of your equipment. In major segments of the process industries, ALCOA® Aluminum is becoming the accepted standard for doing just this. Chemical and petroleum plants find many uses for aluminum in their processes. Aluminum towers, driers and building products ward off atmospheric corrosion in seacoast locations, salt mines, and in similarly aggressive environments . . . areas where other metals fail. The electric power industry uses aluminum to resist the corrosive effects of soot, flyash, gases and vapors from the combustion of coal. The food processing industry takes advantage of aluminum's other important features. Because it looks clean, is easily kept clean, and imparts no color or flavor to the product, aluminum is the best choice for pans, churns and vessels. These aluminum containers also have high heat conductivity . . . an important consideration where heat must be applied to the product. The brewing and pharmaceutical industries use aluminum for still another reason. Here, process equipment must be nontoxic to micro-organisms. That's why aluminum pasteurizers and other equipment are specified for fermentation reactions in microbiological processes. For other processes, aluminum's freedom from embrittle-
Diagram of first successful low pressure tonnage oxygen plant . . . designed to produce 175 tons of 9 5 % oxygen per day for the manufacture of oxygenated chemicals. All the process piping and most of the equipment are Alcoa Aluminum.
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INDUSTRIAL AND ENGINEERING CHEMISTRY
Resistance of Alcoa Aluminum alloys to certain atmospheric contaminants, compared with steel.
Aluminum solidification pans and molds for solids such as stearic acid and waxes resist corrosion and do not discolor the product.
An aluminum prilling tower, 260 ft high by 40 ft square, used in the manufacture of solid ammonium nitrate. Auxiliary buildings are also covered with aluminum be cause of the corrosive at mospheres present.
The naval stores industry uses alu minum to protect color and quality of rosin, rosin derivatives, turpen tine and similar pine products.
Butter has little tendency to ad here to the cast aluminum surface of this churn.
The sanitary appearance of aluminum covers and siding over these brewery pasteurizers is easily maintained.
These 3,000-gaI aluminum ad sorption tanks are used in the production of antibiotics. Alu minum distribution systems for acetone and deionized water also are shown.
Alcoa Alloy 5456-0 is used extensively in process equipment, especially for cryogenic applications. The graphs above show how this alloy's physical properties actually improve at low temperatures. At minus 320 degrees F it improves 3 0 % in tensile strength, over 1 0 % in yield strength and 5 0 % in elongation.
Large scrubber tower for solvent recovery in a syn thetic textile plant.
Aluminum Company of America 877-C Alcoa Building, Pittsburgh 19, Pa. Please send me the following literature on Alcoa Aluminum applications in the process industries:
ALCOA A L U M I N U M A L U M I N U M
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• • • • • • •
GL866—Unfired Pressure Vessels of Aluminum Alloys GL149—Welded Aluminum Gas Cylinders, ICC approved 10197—Aluminum Pipe and Fittings 10186—Alcoa Aluminum Heat Exchanger Tubes 10270-Alcoa Utilitube 10460 — Process Industries Applicationsof Alcoa Aliiminiiiii DD508—Aluminum Alloys in Tank Trucksand Tank Trailers
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10387—Alcoa Standard Storage Tanks 20849—Resistance of Aluminum Alloys to Weathering and Resistance of Aluminum Alloys to Chemically Contaminated Atmospheres Π 20265—Have You Tried Aluminum in Your Refinery? • GL93—Aluminum in the Pulp and Paper Industry Q 20272—Aluminum Alloys for Handling High Purity Water
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VOL. 52, NO. 3
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