Equilibrium data for the sucrose-potassium chloride-water
system were taken for Dowex 50 W X 4 resin at 90° C. The sugar
concentration was varied from 0% to 60% by weight, and the salt content,
from 0% to 6% by weight. Because shrinkage of the resin due
to salt absorption was...
The thermal decomposition of tungsten hexacarbonyl was
investigated in an apparatus which allowed a solid sample of the material
to be sealed into a preheated batch reactor. Because the reaction occurs
with an increase in the number of moles of gas, it was possible to monitor
the progress of the...
A countercurrent, liquid-solids contactor was constructed,
operated and evaluated for a continuous ion-exchange operation.
The exchange of cupric and sodium ions between aqueous solutions
and Dowex 50W-X8 ion exchange resin was studied.
The countercurrent contactor consisted of two, three-inch
diameter columns with active sections ranging from one to four feet...
Laboratory experiments were conducted to study those factors which control the rate at which salts, such as magnesium chloride and sodium chloride, are removed from titanium sponge. The sponge was prepared by reducing titanium tetrachloride with either magnesium or sodium, and the resulting sponge salt mixtures were treated by vacuum...
An experimental technique employing a moveable Mach-Zender
interferometer for measuring composition profiles in the gas phase
of an Arnold diffusion cell has been developed. The experimental
apparatus included a specially built cell having a pair of glass sides to
allow continuous detection of the refractive index. With the integrated
apparatus,...
An adiabatic calorimeter operating over the range 5 to 300 K has
been automated. Instrumentation includes computer controlled data
acquisition, a low-thermal emf multiplexer for switching low-level dc
signals, and automatic analog shield controls. Temperature
measurements are made with platinum and germanium resistance
thermometers, and the thermometer resistances are determined...
The mass transfer of oxygen to water has been studied in a mixing pool with two plunging jets having a variable distance between
them. A closed system with recycle stream was used to reduce the
complexity of the mass transfer process in the system. An on-line
oxygen probe was used...
Solids movement in large-particle fluidized beds was studied in
an 18 in x 18 in (46 cm x 46 cm) tube-filled, cold fluidized bed
test facility. Direct measurement of local solid mass flux in two
dimensions at various locations inside the bed was made possible
by a new instrument developed...
Hydrogen sulfide emissions from the smelt dissolving tank area
of some kraft pulp mills exceed environmental limitations. There are
two main factors to consider in determining the cause of these emissions:
chemical equilibria and rate processes. This investigation
considers the chemical equilibria in the smelt shatter jet area (system
A)...