Motion of liquid drops in immiscible liquids is important in liquid-liquid extractors, in separators used with distillation columns, and in packed towers when the packing is not wetted by the disperse phase. A knowledge of the factors which influence their motion is essential for the design and evaluation of performance of equipment used in process industries. The terminal velocities of single liquid drops falling under steadystate conditions in a stationary continuous medium of water with no mass transfer are reported.Twenty-five pure liquids and six mixtures were studied in the following ranges.Drop diameter, 0.0636 to 4.24 cm. Drop liquid density, 1.016 to 2.939 grams per cc. Drop liquid viscosity, 0.653 to 27.06 centipoises Interfacial tension, 4.13 to 45.67 dynes per cm. Reynolds number, 2.5 to 4,158
PREVIOUS WORKThe theoretical equations of Hadamard (4), Rybzynski (77) and Boussinesq (3) and the experimental investigations of Bond (7), and Bond and Newton (2) are limited to the Stokes' law region of Reynolds number less than 1.
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