Symposium on Separation Operations Sixth Annual Chemical Engineering Symposium, Division of Industrial and Engineering Chemistry, American Chemical Society U n i v e r s i t y of M i c h i g a n , A n n Arbor, M i c h . , D e c e m b e r 28 a n d 29, 1939
Final Program Thursday M o r n i n g , D e c e m b e r 28 D . B. K B T E S ,
Presiding
8:00 to 10:00—Registration. 10:00—G.
G. BROWN, W. L.
Introductory Remarks. 10:15—O. C. RALSTON. Separation Process. 11:00—ERNST
A. HAUSER.
and Fractionation sions. 11:45—Discussion.
BADGER.
Electrostatic Separation
Colloidal
Disper
Thursday A f t e r n o o n , D e c e m b e r 28 C. C. FURNAS,
Presiding
2 : 0 0 — C H A R L E S LAPPLE,
C. B.
SHEP
HERD. Calculation of Particle Trajec tories. 2:45—ROBERT V. KLEINSCHMIDT.
Fac
tors in Spray Scrubber Design. 3:30—ARTHUR
WRIGHT.
Filtration's
Future. 4r : 15—Discussion. Friday M o r n i n g , D e c e m b e r 2 9 W. L. M C C A B E , d:00—HENRY
T.
KAMMERMEYER.
Presiding
WARD
AND KARL
Sedimentation in the
Laboratory. d:30—EDWARD W. COMINGS.
Thicken
ing Calcium Carbonate Slurries. 10:15—H. C. CALDWELL AND G. SEAVOY.
Vacuum Crystallizer. 11:00—HANS SVANOE. The Classifying Crystallizer. 11 :45—Discussion.
Krystal
Friday A f t e r n o o n , D e c e m b e r 29 D . L. KATZ,
of Industrial and Engineering Chemistry, and will be distributed to registrants at the meeting. Sets may also be obtained by sending 50 cents to Whitney Weinrich, Gulf Research & Development Co., P. O. Box 2038, Pittsburgh, Penna. Arrangements. The University of Michigan is host to the meeting. The Chemical Engineering Symposium Com mittee consists of W. L. McCabe, Chair man, E. W. Comings, T . B . Drew, C. C. Furnas, and H. C. Weber. G. G. Brown is in charge of local arrangements.
Presiding
2:00—JOHN W. HASSLER.
Adsorption
as a Means of Separation. 2:45—GEORGE K. ENGELHART.
Flota
tion as Applied to Modern Ce ment Manufacture. a:30—C. C. D E W I T T . Flotation-Con centration. 4 :15—Discussion.
Lux Fire-Fighting Labora tory Dedicated T A LUNCHEON held at the Arrowhead A L Inn, New York, Ν. Υ., on November 15, the Lux iAboratoryof Fire Fighting was dedicated by the Walter Kidde Co. The laboratory is housed in a 10-ton truck, and after a demonstration showing the use of carbon dioxide as a fire-extinguish ing agent, the laboratory departed on an exhibition tour which will include all the principal cities of the United States. During the demonstration, held before 300 guests, gasoline, oil, alcohol, lacquer, and acetylene were set on fire and then ex tinguished with Lux carbon dioxide fire extinguishers. A car, reclaimed from a junk neap, was then liberally doused with a mixture of oil and gasoline, set afire, and a portable tank extinguisher, rushed from the mobile laboratory, was used t o stop the blaze. Other tests, standardized by the Underwriters laboratories, were part of the exhibition. The use of carbon dioxide as a firefighting agent has increased rapidly dur ing the past few years. The New York Municipal Airport's new fire truck carries thousands of pounds of compressed carbon dioxide and can entirely envelop an air plane with the gas. Transport and mili
tary planes are equipped with lightweight cylinders o f t h e compressed gas. Trip ping a valve will release the carbon dioxide to the motor compartment and, despite the slipstream, the fire may be smothered successfully. The rubberized vest worn in unfiated form by naval fliers contains a tiny steel cylinder, similar to the cartridge used t o charge home siphon bottles. Pulling a cord attached t o the vest punctures the cylinder a n d t h e released gas inflates the vest, making i t a life preserver. In the same field the research engineers of the Walter Kidde Co. have developed "air plane water wings" for use o n naval craft. These so-called water wings, or flotation gear, consist of rubberized nags carried in compartments i n wings of fuselage, which are automatically inflated b y compressed carbon dioxide as soon as water strikes one of t w o detectors. These detectors, located at t o p and bottom of the fuselage, inflate the bags regardless of whether the ship pancakes, dives, or lands in the water upside down and work automatically, even if the pilot is unconscious or has aban doned the ship b y parachute. Similar carbon dioxide pressure cylin ders are attached t o rubber life rafts now carried on most over-water flights. Originally the use of carbon dioxide for smothering fires was developed a s a method of fighting fixes in ship-holds, and at one t i m e the Kidde engineers hired a ship, installed the necessary equipment, and invited a group of English shipowners to witness the demonstration which was held on the Thames River. The ship-hold was set on fire with gasoline and oil, and the success of the experiment is attested by the fact that many ships, including the Queen Mary, now use this system. The gas is also of particular value in electrical power plants, where it may be used without fear of decomposition or the grounding o f the circuit through the body of the fire fighter.
Registration. All persons attending the meeting must register. The registration f e e is $1.00 for members of the AMERI CAN
CHEMICAL
SOCIETY, students,
and
nonchemist guests, and $2.00 for chemists w b o are not members of the SOCIETY. Reg istration will be in the Chemistry Buildins. Social Features. There will be group luncheons on Thursday and Friday, and a dinner Thursday evening at the Uni versity of Michigan Union. Tickets for t h e luncheons and dinner may be purchased at the time of registration. The toastmaster for the dinner will be Walter L. Badger. The principal speaker will be Jolin F. Worley. Hotel Accommodations. The Univer s i t y of Michigan is prepared to accommo d a t e those who are registered at the sym posium, either in the Union itself or in the men's oormitories. The rates per person vary from about $1.50 at the dormitories to about $3.00 a day at the Union. .Abstracts of Papers. Sets of authors' abstracts of papers will be mailed in advance to all members of the Division
L a y i n g c a r b o n dioxide f r o m fi*»-»fighting l a b o r a t o r y o v i r a "spill fire" 737
INDUSTRIAL A N D E N G I N E E R I N G
738 Burdick Promoted
G • tive of E. I. du Pont de Nemours & Co., Inc., since 1928, has been appointed LALOB BURDICK, chemist and execu-
assistant t o the president, succeeding Henry B . du Pont, recently advanced t o the position of vice president and member of the executive committee.
