TRY THIS SIMPLE QUIZ ABOUT THE RDC COLUMN 1. R.D.C. stands for Π a) Rapid Dispersion Column ! b) Recycle Displacement Column Π c) Rotating Disc Contactor
2. RDC Columns are made by Π a) 6 different manufacturers Π b) by one manufacturer Π c) by 10 manufacturers
3. The RDC column has been used for I | a) Separation of Hafnium from Zirconium "1 b) Caustic extraction of acids from organics Π c) Caffein and vanillin extraction
4. The RDC column can be used for Π a) liquid-liquid extraction ! b) liquid-solid extraction c) liquid-slurry extraction
5. The RDC column luis ivhich of these advantages a) High volumetric efficiency ] b) No interstage coalescing or external settling c) Low power requirements
Answers 1. (C) Rotating Disc Contactor. 2. (B) RDC columns are made for the process industries exclusively by General American, and on a non-exclusive basis for the petroleum industry. 3. (A), (B) and (C). For a complete list of typical systems in service, contact General American. 4. (A), (B) and (C) again. The RDC column is one of the most versatile tools available for extraction processing. 5. (We did it again—all three are correct). ι
If you'd like more information on the RDC column and the many advantages it offers, send for Bulletin T-l 159. You'll find it pays to plan with General American. L.ll.lt.B'IIIJ.I .GEilERBL
Process Equipment Division—Turbo-Mixers
GENERAL AMERICAN TRANSPORTATION CORPORATION 135 South LaSalle Street · Chicago 3, Illinois Offices in principal cities
Circle No. 29 on Readers' Service Card VOL. 53, NO. 7
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JULY 1961
5 A
