Rotary-disk contactors

Rotating disk contactors or other rotary agitated towers reaiize NETS in the range 0.1-0.5 m. The especially efficient Kuhni with perforated disks of 40% free cross section has NETS 0.2 m and a capacity of 50 hr. 

North and Wells (N7) described the design and operation of a rotary-film contactor for the solvent extraction of metals directly from leached ore slurries. It consists of an enclosed rotating assembly of closely spaced disks centrally mounted on a common horizontal shaft. The transfer of the metal to the solvent layer is effected by the rotating disks where a film of slurry is formed on contact with the leached ore at the bottom of the vessel. This contactor gave excellent uranium recovery from sulfuric... 

Rotating disk contactors or other rotary agitated towers realize HETS in the range of 0.1-0.5 m... 

Various absorbers used for the measurements of absorption rates in gas-liquid reaction processes can also be used to make similar measurements for the gas-liquid-solid reaction processes. Commonly-used absorbers are the laminar-jet absorber (Fig. 5-19). the wetted-wall column absorber (Fig. 5-20), the rotary-drum absorber, the disk column absorber (Fig. 5-21), the single-pellet absorber (Fig. 5-22). and the gradientless contactor (Fig. 5-23). The key features of these absorbers... 

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