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Hydraulic lifting of solids from a bed through a 2.4-in. X 13-ft vertical tube was investigated using 0.306-in. alumina pellets and 0.0734and 0.131-in. iron shot with three different nozzle feeders. Each volume of lift water carried from 0.02 to 0.20 volume solids. The lift line void fraction ranged from 0.95 to 0.74, which encompasses the range of dilute phase to dense phase transport. Wall friction represented only a few percent of the total pressure drop of 0.7 to 1.0 psi per foot. The Richardson and Zaki's correlation was extended from sedimentation and static fluidization modes to the fluidized transport mode. Pressure drops were predicted within 6% accuracy.

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