RESEARCH RESULTS . . . immediately available All manuscripts listed here are being considered for possible publication in one of the I&EC quarterlies. They are available to I&EC subscribers at reproduction and handling cost, at any time prior to publication in a quarterly. Papers withdrawn from consideration will generally remain available for 90 days if authors approve. A Research Results Service manuscript should be treated as a personal communication. Reference to its content in any publication should have the author's prior approval. Please use the printed coupon, and include payment with your order.
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SUBSCRIBER'S NAME. ............................ ADDRESS. .....................................
.............................................
Thermmi bnducHvW of Alumina Cablyit Pelleu
Xylene Separation by D s p o l y d k y l ~ l i o n
R. A. Mirchki and 3. M . Smilh, Northwrslm Unimsity.
J . T . K e l l ~ ,.I. R . King,and H. .M. Knighr, Cilirr Snaics Research and I)rwlopmanr Cornpony
Low thermal conductivities for alumina catalyst pellets indicate severe temperature gradients possible in porous catalyst. Arc. of contact bctwccn powder particles in pellet appears to bc a significant parameter. Data for alumina and silver can be interpolated to yield approximate vacuum value for any pcllcfcd catalyst.
Ms.82-70
79pagcr, inclvdrng 5 J i e u r q 2 (rbler.
S2.W
Scparacion of p-xylene from a mixture with thc mefa isomer by selective fert-butylation, using boron mifluoride monohydrate as catalyst and irobutylcnc dimer as the alkylating agent. Product of 95-97.5% purity obtained in a single stage reaction, but for higher purities a staged reaction i s required. Mr. G2-762
17pogrr, including djgurrs, 2 robles
I2.m
Plutonivrn ElwlronRning L o i u r c m J . Mullinr, Joseph A. k a r y , Arrhur N . Mayon, end
A x i d Mixing in Pipes mod Between Pamliei F b I Pi@.'
William J . M o r m o n , L o x Alonor &imt$% Lobamlory
K. E. Cilbmr, Uniwsily
Elcctrorcfining pmccsncs have bccn developed that provide high purity, high density plutonium metal for metallurgical studies on the 500 g. and 3.5 kg. scales. The procedures can also be used for the economical processing of plutonium metal Scrap.
Axial dispersion cocficienfs for the steady Row of miscible fluids in circular tubes and b c f w c m parallel flat plates have been computed. T h e rcsulfs are p r a t e d as graphs of a pseudo-Pcclct number 01. Reynolds number with Schmidt numbcr as a parameter. A Schmidt number dcpendcncc i s observed at all Reynolds numbers M o w lW,OOO.
.MS.62-76
23 pngu. i u l u d i q r j a u r e . ~ ,6 rablrr
13.00
Mr. 62-/ti5
of Nebrorko
23pogrr. im1udi.p 5Jgurrr
83.09
A t m o r p h r i r Iodine for Smog A t d e m e n t
Williom F. Hamillon, Myron I m i n e and Eli Simon, Lockhzhd A i f r corpornrion Ten parts per hundmd million, or less, of iodine in test samples ofirradiated natural or artificial Smog mixtures, either abate or p i e v a t the formation of ozone, the usual index for smog. 'Toxicity survey shows afmmpheric iodine readily tolerable at rccommcndcd con~enfrafion~.Toxicity of iodine-smog products not determined. Mr. G2-154
22 pages, including 70 loblrr, 8 J p m
13.00
h..l m n s f n and Chemical R a d o n in m Turbulent Boundmry
1q.r
W.R. Vierh, J . H . Palrr and T . K. Shnwood, Mosrorlvlrrui Inrrirure of Technolagy Equation derived LO describe m a s transfer to fluid in fullydeveloped turbulent Row in a pipe. Assumption that eddy conductivity is proportional to cubc of distance from wall providcs basis for a delivation of Chilton-Colburn "analogy." Analysis cxfcndcd to case of simultaneous mars t r a d e r and irreversible firstdrdcr chemical reaction.
Mr. G2-166
Rile M. Perkinr, George L. D r o k , Jr., and Wilran A. R m m , Sarlkrn R~giomlResearch Lobaatory
14 pogcr, inrluding 1 &we
12.W
O l d n Polymerir~tionsOver Synthetic Molecular l i e v n Chmlrr J . Naran, Ohia
Oil Campony
A new simultaneous dye-resin process has advantage of renisfancc to acid and alkaline hydrolysis. Report includes only the chlorotriazinc dyestuffs used primarily with an aziridinc derivative, such as tri(1-aziridinyl) phosphine midc. Excellent fastness to home and accelerated commercial type launderi n s and very good wash-wear and general physical propertics were obtained.
activities of sieves and relationships to certain sieve properties. Includes examples of catalytic ac. tivities of two sievc types, and compares activities for propene polymerization with sieve compositions and solid-acidity titers. Propene polymerization reaction also studied in laboratory-scale Row reacfw system. Wide range of reactions and reacfanfn survcyed in micro-reactor.
Mr. 62-761
M I . 62-767
30 p q e s including 7 j g a . m . 7 roblrr
J3.W
Olefin polymerization
2 8 p o g r 4 inrluding djrgurcr, 4 robler
VOL 5 4
13.W
NO. 9 S E P T E M B E R 1 9 6 2
93
Can oraznary steel be used for constructing a storage tank? I
I
r
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1.
What is the return-on-investmm from a bulk storage system? (I 4
Should cartridge or plate-and-fram jltering be used ?
..
Have questions on ACRYLIC MONOMER storage?. Rohm & Haas technical service provides the answers Whenever you’re concerned about handling production quantities of acrylate or methacrylate monomers, Rohm & Haas will be glad to send a technically trained representative to your plant. You’ll find his advice very helpful when you’re designing storage tanks, piping systems, installations for unloading tankcars and tanktrucks, or facilities for transferring bulk shipments into drums. He will also answer questions on
lilter requirements, inhibitors, storage in drums, safety precautions, and general behavior of acrylic monomers. His knowledge is backed up by 31 years of Rohm & Haas experience in acrylic monomer production and use.
ROHM HA~AS ,
IL A
IL P
IA
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A.
Cinli N8.11 am R u d m ’ S m i c e Cad
94
INDUSTRIAL AND ENGINEERING CHEMISTRY
write to Dept. SP-12 for literature and samples of monomers listed below:
RESEARCH RESULTS Catalytic Air Oxidation of Crotonaldehyde to Maleic Anhydride
James M . Church and Panayota Bitha, Columbia Uniuersity Wide range of variables used to establish optimum conditions for conversion and yield. Several vanadium catalysts evaluated. Temperatures fiom 300° to 465' C. employed. Theory yields of 66y0maleic anhydride and crotonic acid obtained. Crotonic acid separated and recycled for further conversion to maleic to give yield approaching 86'% of theory. M s . 62-781
*
76pages, including 2 tables, 4 f g u r e s
82.00
A Statistical Definition of Perfect Mixtures of Solids of Different Sizes
Kun Sup Hyun and L. E. Marc de Chazal, Uniuersity of Missouri No satisfactory correlation exists for mixtures where particles are multi-sized. A mathematical definition of a perfect mixture of three sizes of particles is proposed. T h e principles can be extended to any number of sizes, but the complexity of the equations increases rapidly. Equations presented agree with experimental results much better than the Buslik correlation.
M s . 62- 182
24 pages, including 3 tables, 3Jigures
$3.00
Reactivity of Coals in High-pressure Gasification with Hydrogen and Steam
Harlan L. Feldkirchner and Henry R. Linden, Instilute of Gas Technology Reaction rates of coals and chars measured a t pressures up to 2500 p.s.i.g., and temperatures to 1700' F. Novel experimental technique makes it possible to follow course of coal-hydrogensteam reactions durihg initial high rate period. Provides useful information for design of reactors for coal-to-methane conversion.
Ms. 62-783
18 pages, including 72Jigures, 3 tables
$2.00
The Feed Forward Control of a Chemical Reactor
J . T . Harris and R. S. Schechter, University of Texas A good feed forward controller can be designed from linearized equations of the system if the kinetics are known. If not, a satisfactory controller can be designed by an experimental frequency response technique. I t was not possible to improve significantly on calculated settings for the controller.
Ms. 62-184
46pages, including 7 2 f g u r e s , 2 tables
85.00
Effects of Baffles on Heat Transfer to Coils in a PropellerAgilated Vessel
A . H. P. Skelland, J . A . Ulrich, and T . F . .lilach, Illinois Institute of Technology
c
Correlates effects of baffle-width (D,/18 to D T / ~ and ) number (2 to 6) on individual heat transfer coefficient for agitated side in thirty-gallon vessel fitted with cooling coil. Radial baffles were used, with shaft speeds from 100 to 1200 r.p.m.. and water the agitated fluid. Increase in number or width of baffles reduced heat transfer coefficient. Ms.
62-786
2 2 pages, including 2 J i p r e s , 72 pages of data
$3.00
Adsorption Rates in a Vapor-Solid System
John F. Haman and Karl Kammermeyer, Uniniuersily of Iowa T h e Banpham and Sever Correlation was found to work well with seven light hydrocarbons and C o n on microporous glass. Investigation included sorption rate curves, generalized effect of pressure and temperature thereon, approximate equilibrium times for adsorbates, and comparison of adsorption values with those of other investigators. Equation for correlation of rate data allowed straight-line plotting over practically entire time range.
M S . 62-788
79 pages, i r ~ l u d i n g6 ~ i g u r e s
$2.00
WHICH CATALYST CARRIER Should you use? Wide variety in shape, size, density, surface, pore size and porosity is offered in the complete line of catalyst carriers made by Carborundum. Materials are ceramic-bonded granules of fused alpha aluminum oxide, hexagonal (alpha) silicon carbide, silica and fused mullite. Chemical and physical properties can be selected to meet virtually every requirement. TEST KIT AVAILABLE: To help in appraising the performance of various types of catalyst carriers, Carborundum offers a complete test kit at a nominal charge of $15. Comprehensive information on properties, test procedures, and prices will also be supplied. Please write on your company letterhead to Dept. IEC-9,Refractories and Electronics Division, Carborundum Co., Latrobe, Pa.
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NO. 9
SEPTEMBER
1962
97
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