CHEMICALS
ALONE AT SEA, Magnesia Improves Catalysts HARRY? Petroleum cracking catalysts with added magnesia give better gasoline, olefin yields American Cyanamid has developed new fluid cracking catalysts that give bigger yields of gasoline, propylene, and butylène. The catalysts: silicaaluminas containing small amounts of At sea Harry, about how and where to magnesia. They give gasolines with find that coated paper component for no lower, and possibly higher, octane your product? Relax Harry, and sail on ratings than other catalysts, the comto APC. We've got a crew that's weathered pany says. many a research storm in developing Currently, American Cyanamid is special coated papers to solve specific commercially producing two composifunctional problems. Sail on Harry and tions of the new catalysts: 12% tell us your requirements. Our safe haralumina, 3 % magnesia, and the balbor welcomes you with open arms. ance silica (Aerocat 3 C-12); 20% alumina, 3% magnesia, and the rest silica THE APPLETON COATED (Aerocat 3 C-20). Aerocat 3 C-12 PAPER COMPANY WISCONSIN APPLETON makes gasoline of a quality equal to BOX CE that from a catalyst of the same type without magnesia—but gives higher yields, the company says. The 20% FOR SIMPLE, alumina material increases yields of propylene and butylène at the expense STURDY ASSEMBLY of coke and light gases. CENCO® Pilot Plant Studies. Cracking tests with magnesia-alumina-silica catalysts show that the materials have almost the same physical and chemical properties as alumina-silica catalysts, Dr. Robert M. DeBaun of American Cyanamid told the Western Petroleum Refiners Association's meeting in San Antonio, Tex. This means regenerability and resistance to heat and steam are as good as for alumina-silica catalysts, Dr. DeBaun says. Speedy assembly The company tested the new catafor all types of laboralysts in a fixed-fluidized bed cycling tory set-ups. Safe, dependable, exceptionally unit. The unit uses a 10 minute rerigid. Easy to add or action cycle, a five minute steam remove rods without dismantling struc- purge, and a 30 minute regeneration ture. Made of tough alloy. Lock secure- cycle, according to Dr. DeBaun. Rely to rods by flush Allen screws. actor temperatures: 900° and 940° F . No. 19092 Lattice Rod Studies show better naphtha yields, Clamps in package of 12 less carbon, more butylènes, and less with wrench $6.05 dry gases, for example, when comparCENCO the leading manufacturer of instruments for lab· ing 20% alumina-3% magnesia with a oratories. 13% alumina-silica catalyst. High or CENTRAL SCIENTIFIC CO. low alumina content with silica seems 1710 Irving Park Road · Chicago 13, Illinois Branches and Warehouses—Mountainside, N. J. to have no effect on yields in the pilot Boston · Birmingham · Santa Clara · Los Angeles · Tulsa plant unit, Dr. DeBaun adds. Houston · Toronto · Montreal · Vancouver · Ottawa
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Based on past experience, magnesia in catalysts poses a problem in regenerability. However, compared to alumina-silica catalysts, adding small amounts of magnesia has little effect on carbon burning rates, Dr. DeBaun explains. A test of magnesia-silica does show a significant loss in carbon burning rate, though, of nearly 50%. Economics of the new catalysts will vary with the particular refinery use. If a refiner needs olefins for polymer gasoline, for chemical use, or for alkylate, the magnesia-containing catalysts should have definite value, according to preliminary figures worked out by Dr. DeBaun. American Cyanamid does not have commercial use data available yet. However, a trial run of the 2 0 % alumina-3% magnesia is in base line status at a Shell Oil refinery. C1
NEW CHEMICALS Two new labeled compounds—allyl a l -
cohol-1-C 14 and allyl bromide-l,3-C 1 4 —are available from Isotopes Specialties, division of Nuclear Corp. of America, Burbank, Calif. Potential use: petroleum research. C2
High purity binary semiconductor compounds such as scandium, yttrium, cesium, lanthanum, dysprosium, indium, and gallium arsenides, antimonides, and phosphides can now be obtained on a custom basis from Trionics, division of Motor Products, Detroit, Mich. Uses: electronic devices and advanced electronics research. C3
Water-soluble autolyzed brewers yeast fraction, high in total nitrogen and amino nitrogen, is commercially available from Amber Laboratories, Milwaukee, Wis. Called Amber BFY
Series 50, it contains a minimum of 10% total nitrogen, 40% of this being amino nitrogen. It contains peptones, peptides, amino acids, and the Β vi tamins, plus growth factors found in brewers yeast. C4
Easily prepared cleaning solution for
lab ware has been developed by Manostat, New York, N.Y. Chromerge, when mixed with concentrated sul furic acid, yields a ready-to-use chromic-sulfuric acid solution, the company says. Thus, there is no need to boil sulfuric acid with potassium dichromate, the company adds. C 5
cal, Marinette, Wis. Used as a chem ical intermediate, it contains less than 1% water, says Ansul. C6 Neoprene-asphaltic coating has been introduced by Gates Engineering, Wil mington, Del. Neoprene and asphalt are combined to give a material re sistant to moisture, weather, and mild chemical action, which requires no primer, will apply to damp surfaces, will not crack in cold temperatures, and retains its flexibility, Gates says. C7 Further useful information on keyed Chemical items men tioned is readily available . . .
Tetramethyl ammonium chloride, at
least 98% pure, is available in devel opment quantities from Ansul Chemi
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STIRRER Allows powerful constant Stirring at selected speeds 9 · . better action at any viscosity because torque increases when speed decreases. Jacobstype chuck çrips up to H* glass rod. Hollow shaft per* mits fast easy vertical rod adjustment. Mounting permits multi-angle stirring.
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