The partition equilibria of iodine between air and water containing NaOH were measured at 25°C. The overall partition coefficient increases with increase in the concentration of NaOH in aqueous phase and with decrease in the concentration of iodine in gas phase. One of the important species which control the partition equilibria in this system is H⁺. The concentration of H⁺ is affected by both the concentration of NaOH in aqueous phase and the hydrolysis of iodine dissolved into water. Hypoiodide which is produced by hydrolysis of iodine dissolved into water causes the consecutive-competing reactions and then the greater part of hypoiodide changes finally into I^-, I₃^- and IO₃^-. Considering the facts as mentioned above, the partition equilibria of iodine in this system can be estimated theoretically.

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Experiments were performed to obtain basic informations on force on a sphere in sinusoidally vibrating liquid. At maximum relative velocity, when acceleration of liquid is zero, experimental correlation on force on the sphere was
From the results, together with the data obtained by Odar et. al., it was found that force on a sphere at maximum relative velocity was related with

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Thermal conductivities of various solid particles size between 0.21 and 3.9mm, namely polyethylene, polypropylene, polyvinyl chloride and glass spheres were determined by measuring the thermal conductivities of annular packed beds of above solids filled with various kinds of stagnant fluids having different thermal conductivities, i. e. for air, carbon dioxide, helium, water, glycerol, ethyleneglycol and mercury.
Observed values of the solid thermal conductiveteis were found to be consistent with those measured for ordinary test pieces of the same those materials.
Taking account of the apparent coefficient of heat transfer in the vicinity of heat transfer wall surfaces, and using the measured thermal conductivities for solid particles, a theoretical calculation gave the almost same values of the effective thermal conductivities of annular packed beds measured in the present experiments.

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Equations for calculation of batch distillation accompanied with chemical reaction were derived and solved for examples. That is, differential equations which represent the variation of mole fraction of a component in the column as a function of time were solved simultaneously and numerically.
With minor modification of this calculating method, these equations are applicable for continuous idstillation accompanied with chemical reaction. These calculating methods are available even for the case where the heat of reaction is significant. Moreover, on the continuous distillation, not only the values at steady state but also the information from the startup of the operation to the steady state are given.

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Simultaneous Absorption of two gases accompanied by bimolecular reaction is studied on the basis of film theory. Basic equations representing mass balances of two gases are solved numerically, and charts of modified reaction factor of two gases are presented for various combination of parameters.
Absorption of CO₂ and NH₃ into water was carried out using continuous stirred tank reactor with free liquid surface, and experimental data are analysed by taking into account modified reaction factors of both CO₂ and NH₃. It is found that the observed absorption rates of CO₂ are in good agreement with theoretical predictions.

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The study on the rate of copolymerization of styreneand acrylonitrile in dimethyl for mamide solution wascarried out in batch stirred tank reactor.
The reaction at 70°C was thermally initiated byazo bisisobutyronitrile.
Experimental conditions were as follows. Totalmonomer concentration: 1-6 [g-mole/l]. Mole fractionof styrene in total monomer: 0-1 [-]. Initiatorconcentration: 0.005-0.08 [g-mole/l].
Since the rate of copolymerization in this systemhad no dependency on the first order of monomerconcentration, the rate equation was developed toinclude gel effect and chain transfer to solvent.
This equation showed a good agreement with experimentaldata. Reactivity ratio was almost constantover the range of our experimental conditions.

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The experimental and literature data of longitudinal dispersion coefficient of liquid based on actual mean liquid velocity, EL, in the bubble column with a perforated plate or a nozzle as a gas distributor are correlated with Peclet number (Pe=u_G D_T/E_L), Froude number (Fr=u_G/√gD_T) and the ratio of the actual gas holdup, εG, to the standard one, εG*. The following experimental equation is obtained for column diameter ranging from 4 to 90cm.
where
u_G is superficial gas velocity, cm;/sec;
D_T is column diameter, cm;
g is gravitational acceleration, cm/sec².

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The effects of the rotor size and the characteristics of powder materials on the volumetric efficiency are studied with two feeders by use of wheat, millet seed, and quartz sand. Particle motion in a rotor is also investigated with high-speed photography. Analysis based on the particle mechanics, in which Coliolis' force and frictional force between particles are taken into consideration, is able to explain the experimental results satisfactorily. Consequential factors are discussed relevant to applications.

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Heat transfer coefficient was measured for turbine and paddle impellers under various conditions. Pretty good correlations were made by the following equations containing impeller diameter (d), blade width (b), number of blade (n_p), impeller height (_C), number of impellers (i), liquid height (H), blade angle (θ), and vessel diameter (D).
Under non-baffled condition with cooling coil:
Under baffled condition with cooling coil:
The equations are also valid for correlating data presented by previous authors.
Interference effect due to cooling coil was 5% under non-baffled condition, but negligibly small under baffled condition.
Using the liquid velocity close to the vessel wall measured by Yamamoto, simple heat transfer correlation was obtained as follows:

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