RESEARCH RESULTS . . . immediately available All papers listed are being considered for possible publication in I&EC and I&EC Quarterlies. They are available in manuscript form prior to I&EC publication or alternatively for at least three months.
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A Predictive Theory for Multicomponent Diffusion Coefficients.
The modified absolute rate theory is used to develop predictive expressions for multicomponent diffusion coefficients. These relationships are confirmed for some recently studied completely miscible ternary liquid systems.
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Modeling Vapor Transport in the Presence of a Temperature Gradient. A simple method was devised for observing gas flow
in presence of a temperature gradient. I t lends itself to studies of gas transport in systems of complex geometries.
Wallace W. Pulte and William Hertl, Corning Glass Works
Harry T. Cullinan, Jr., and M . R. Cusick, State University of New York at Bufalo
MS. 66-139
MS. 66-109
2Opages (4figures, I table)
28pages ( 4 tables)
Subscribers $3.00 Nonsubscribers $6.00
A Formal Solution for Neumann-Type Moving Boundary Problems with Variable Property Values. Method involves
Boltzmann transformation and an iterative procedure. Principal application could be in melting and solidification of transparent or semitransparent materials.
J . Srekely, Imperial College, London, England Ms. 66-17? 72 pages (2figures)
0
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A large Spherical Vessel for Combustion Research. Twelvefoot sphere suited to ignition, flammability, and detonability studies. Inner and outer doors permit entry; also make possible experiments at elevated, atmospheric, and reduced pressures. Maximum design pressure is 300 p.s.i.g. Vessel can be used for solid explosives as well as vapors and gases.
Alphone Bartkowiak and Joseph M . Kuchta, Bureau of Mines MS. 66-147
Subsmibers $2.00
Subscribers $2.00
l4pages (5jgures)
Nonsubsmibers $4.00
Nonsubscribers $4.00
Solute Dispersion in liquid-Solid Chromatographic Columns.
Heat Transfer to Agitated, Two-Phase liquids in Jacketed Vessels. Correlations for single phase liquids can be used to
Describes improvement in scale-up procedure. Shows that, theoretically, the spread of a pulse of solute, as it passes between two measuring points, is sum of spreads of adsorption and dispersion process. Effects of column diameter and length, particle diameter, and pulse viscosity are evaluated.
estimate heat transfer rates if bulk, volume-average physical properties are used. Effect of second phase depends largely on condition of boundary layer adjacent to heat transfer surfaces. A settling number is postulated as an index of importance of settling.
Martin C. Hawley and Donald K. Anderson, Michigan State University
S.W. Bodman and D. H. Cortee, Massachusetts Institute of Technology
MS. 66-119 25 pages (7Jigures)
Subscribers $3.00 Nonsubscribers $6.00
Scale-Up of a Column Adsorption Process by Computer Simulation. Describes an efficient and economic method of predicting
fixed bed column absorption process performance. Excellent agreement was obtained between computer simulated values and experimental data from three different size columns.
MS. 66-148
Subscribers $3.00
23 pages ( 4 figures, I table)
Nonsubscribers 86.00
A Novel Process for the Preparation of Inorganic Foams. Alumina refractories with densities of less than 30 lb./cu. ft. were produced by foaming the metal oxide in unsaturated polyester resins and firing the foamed objects in temperatures of (150' to 1900' C . Unsaturated polyester resins perform better than other foamable polymer systems.
J . W. Chen, J. A. Buege, F. L. Cunningham, and J. I. Northam, The Upjohn Company
Marco Wismer and J. F. Bosso, Pittsburgh Plate Glass Company
MS. 66- 120
MS. 66- 153
22 pages (8figures, 2 tables)
Subscribers $3.00 Nonsubscribers $6.00
Thermogravimetric Balance for Radioactive Samples in a Hydrogen Fluoride Atmosphere. Equipment was designed,
Subscribers $3.00
29 pages ( 8 figures, 4 tables)
Nonsubscribers 86.00
Effect of Electromagnetic Force on the Stability of liquid Films. A film of poorly conducting liquid flows down an inclined plane
constructed, and operated with satisfactory performance since September 1964. Reactor, vacuum, purge, and protective systems are described. Performance tests using calcium oxalate monohydrate decomposition are shown. One example of results is given.
under the influence of gravity. The application of electric and magnetic fields normal to each other and to the plane can either stabilize or destabilize the flow.
H. A . Troutman, The Dow Chemical Company
MS. 66-155
M S . 66-136
21 pages (2Jgures)
16 pages (7figures, 1 table)
Subscribers $2.00 Nonsubscribers $4.00
Joseph M . Crowley, Max-Planck Institute fur Stromungsforschung, Gottingen, Germany Subscribers $3.00 Nonsubscribers $6.00
(Continued on page 90) VOL. 5 8
NO. 7
JULY 1 9 6 6
89
RE§EARCH RESULTS Production of Glyoxylic Acid. Glyoxylic acid is produced by a new and simple method. Maleic acid is ozonated in aqueous solution. The water and by-product formic acid are distilled off, leaving glyoxylic acid behind. The yield is essentially quantitative.
W . T. Black and G. A . Cook, Union Carbide Corporation M s . 66-156 7 pages
Characterization of Propellant Binder Ingredients through Gel Chromatography. Gel chromatography is uniquely suited for
fractionation of many propellant binder prepolymers and curatives. Separations include resolution of commercial glyceryl monoricinoleate into components, removal of polymeric materials in butylene imine amide of trimesic acid, and fractionation of some polymers used in liners and propellants.
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$1.00
C. Gustavson and E. A . Woychesin, Aerojet-General Corporation
Nonsubscribers
$2.00
M S . 66-165 2 1 pages (6figures, 5 tables)
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$3.00
Nonsubscribers $6.00
Non-Newtonian Diffusion: A Mathematical Study. A mathematical model suggesting a method for measuring diffusion coefficients of solutes in non-Newtonian fluids was constructed and solved. Initial experimental results confirm the model's validity and suggest a strong dependence of diffusivity on shear rate.
liquid-Vapor System SOz-NHs-HzO At 25'. The system was studied using IR spectra, pH, and electrical conductivity. Treatment of the results shows the existence of only the species H+, OH-, HS03-, so,+," I + , a solvated form of SO*, and a solvated form of NH,. Specie concentrations are calculated 7. for p H
Eugene A . Harlacher and A v r e d J . Engel, The Pennsylvania State Universily
W. D . Scott and J . L. McCarthy, University of Washington
M S . 66-160
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