unit operations - American Chemical Society

following degrees: A.B., Lenoir-Rhyne College, 1925; B.S. and. Ch.E., N. C. State College, 1928 and 1932; ... tute of Technology, where he is associat...
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UNIT OPERATIONS This i*aiie of Industrial and Engineering (:henlibtry iiiarks the seventh anriiial prcsentation uf o u r Chrniiral Engineering I'nit Operations Ikview. U'ith the exceptiun of Drying und High Vacu~rrnI.)istillation, whirh w i f l nut appear this year, the aectiona appearing in thia f k v i e w urr t h e ranie once publistred in t h e 1951 \'nit Operations Review.

Thr. tifth arinirul l'nit Proce*wu tieview Hill be featured in t h e Srpteruber 1932 iaauc a n d t h r \lateriala of Constnrrtion Iievivw will he presented for the airth c o n r w u t i s r tinir i n Ortuber 19.52.

THE EDITORS

Mixer Used for Tank t 0 Feet in Diameter, Liquid 15 Feet Deep

ABSORPTION AND HUMIDIFICATION 25

ADSORPTION 30

R. L. PIGFORD received his B.S. from Mississippi State College (1938) and his M.S. and Ph.D. from the University of Illinois (1940 and 1942, respectively). Until August 1947 he was with Du Pont, Wilmington, Del., where he engaged in research and plant design problems in the field of diffusional operations. Since September 1947 he has been chairman of the department of chemical engineering a t the University of Delaware.

B. L. HARRIS (born in Savannah, Ga., 1917) received his B.E. (1938) and Ph.D. (1941) in chemical engineering a t The Johns Hopkine University. A t present he is assistant professor of chemical engineering at The Johns Hopkins University and chief of the chemical branch of the Chemical Corps Research and Engineering Command. Harris is a member of the American Chemical Society and the American Institute of Chemical Engineers.

CENTRIFUGATION 39

JAMES 0. MALONEY is head of the department of chemical engineering and director of the Research Foundation a t the University of Kansas. He was born in St. Joseph, Mo., in 1915, and received his B.S. (Ch.E.) from the University of Illinois in 1936 and his M.S. and Ph.D. from The Pennsylvania State College in 1939 and 1941, respectively. Maloney is a member of the American Chemical Society and the American Institute of Chemical Engineers.

CRYSTALLIZATION 41

C. S. GROVE, JR., professor of chemical engineering a t Syracuse University, was born in Oneida, N. Y., in 1905. Grove holds the following degrees: A.B., Lenoir-Rhyne College, 1925; B.S. and Ch.E., N. C. State College, 1928 and 1932; M.S., MIT, 1934; and Ph.D., University of Minnesota, 1942. He is a member of the American Chemical Society, American Institute of Chemical Engineers, and American Society for Engineering Education. JOSEPH B. GRAY (born in 1915 at Annapolis, IMd.) is a research chemical engineer with Du Pont, Wilmington, Del. He received his B.A. in chemistry from St. John’s College (1936), and B.S. in gas engineering (1938) and Ph.D. in chemical engineering (1941) from The Johns Hopkins University. Gray is a member of the American Chemical Society, American Institute of Chemical Engineers, Sigma Xi, Gamma Alpha, Phi Lambda Upsilon, and Alpha Chi Sigma.

HIGH TEMPERATURE DISTILLATION 45

T. J. WALSH obtained his B.Ch.E. (1939) and M.Ch.E. (1941) from Rensselaer Polytechnic Institute and Ph.D. 0948) from Case Institute of Technology, where he is associate professor of chemical engineering. Walsh holds three patents on distillation and one on solv e n t extraction. He is a consultant on fuels to the NACA a t the Lewia Flight Propulsion Laboratory, and is a member of the American Institute ofChemicalEngineers and the American Chemical Society.

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EVAPORATION 50

W. L. BADGER, author of “Heat Transfer and Evaporation” and coauthor of “Inorganic Chemical Technology” and “Elements of Chemical Engineering,” was born in Minneapolis in 1886. He attended the University of Minnesota, M.S., 1909. Badger is a consulting chemical engineer and a member of the American Chemical Society, American Institute of Chemical Engineers, and the Executive Committee on Heat Transfer of the National Research Council.

R. A. LINDSAY was born in Detroit in 1915; he attended the University of Michigan and obtained his B.S. in 1939 and M.S. in 1940. Since 1941 he has worked with W. L. Badger on’heat transfer and evaporation a t Dow Chemical Co. and is now a t their main office in Midland, Mich. With coauthors, Lindsay has published several papers on heat transfer. He is a member of the American Institute of Chemical Engineers.

SOLVENT EXTRACTION 53

FlLTRATlON 63

FLUID DYNAMICS 68

ROBERT.E. TREYBAL (born 1915, New York) is professor of chemical engineering a t New York University. He received his B.S.Ch.E. (1935) and M.S. (1936) from New York University and his Ph.D. (1942) from Columbia University. Treybal has published the results of many researches in extraction, and a book entitled ‘‘Liquid Extraction.” He is a member of the American Chemical Society. American Institute of Chemical Engineers, and Sigma Xi.

SHELBY A. MILLER was born in Louisville, Ky., in 1914. He received degrees of B.S. from the University of Louisville in 1935 and of Ph.D. from the University of Minnesota in 1944. His present position is professor of chemical engineering, University of Kansas. Miller is a licensed professional engineer and a member of the American Chemical Society, American Institute of Chemical Engineers, and the American Society for Engineering Education.

MAX LEVA (born 1913 near Ludwigshafen,Germany)is a consulting chemical engineer. He studied a t the University of Cincinnati (B.S.) and Carnegie Institute of Technology (M.S.). While with the Bureau of Mines Leva directed research on fluid flow, heat flow, and fluidization. He is a member of the American Chemical Society, the American Institute of Chemical Engineers, and is a registered professional engineer. MURRAY WEINTRAUB (born in New York, 1918) received his B.S. in chemical engineering from The Cooper Union Institute of Technology. He spent four years with the chemical operations division of the Huntsville Arsenal and since 1945 has been engaged in engineering research and process development with the Bureau of Mines. Weintraub is a member of the American Chemical Society and American Institute of Chemical Engineers.

HEAT TRANSFER 75

ION EXCHANGE 79

MATERIALS HANDLING 85

MIXING 88

SIZE REDUCTION 91

GEORGE T. SKAPERDAS (born in New York City in 1914) studied chemical engineering a t McGill University (B.Eng., 1936) and a t Massachusetts Instituteof Technology (S.M., 1938,and Sc.D., 1940). He is now working on process and equipment development and design with The M. w. Kellogg Co., New York, N. Y. Skaperdas is a member of the American Chemical Society, American Institute of Chemical Engineers, and Sigma Xi.

ROBERT KUNIN (born in West New York, N. J., in 1918) received his B.S. (1939) and Ph.D. (1942) from Rutgers University. He is a laboratory head engaged in research on and development of ion exchange resins for the Rohm & Haas Co. Kunin spent two years as research chemist for TVA, a year a t Mellon Institute on the Petroleum Refining Fellowship, and two years during the war on the Manhattan Project at Columbia University.

RICHARD L. SPEAKER received his B.A. degree in chemical engineering from the University of Illinois in 1944. He is now the Wisconsin representative of the Standard Conveyor Co. of St. Paul and his efforts are directed toward application of conveyors to materials handling. Speaker is registered in Wisconsin as a professional engineer and is a member of the American Chemical) Society and Alpha Chi Sigma.

J. HENRY RUSHTON, professor of chemical engineering, is director of the department a t Illinois Institute of Technology and director of research for Mixing Equipment Co.,Rochester, N. Y. He attended the University of Pennsylvania (B.S. and Ph.D.). Rushton is the author of numerous scientific articles and is a member of the American Chemical Society, American Institute of Chemical Engineers, and Society of Chemical Industry.

LINCOLN T. WORK (born 1898, Hartford, Conn.) received his A.B., Ch.E., and Ph.D. degrees from Columbia University. Early in 1949 Work resigned as director of research a t Metal a5r Thermit Corp. to engage in private consulting work. He is a consulting engineer and his offices are with Singmaster and Breyer. Work was chairman of the Division of Industrial and Engineering Chemistry of the American Chemical Society for 1950.

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