United Kingdom Atomic Energy Authority

Secretary of State for United Kingdom Atomic Energy Authority

Jaswant Singh

Samuel N Oruh

Michael Joseph Bowe

John William Stairmand

Lionel H Ford

Geoffrey S Coldwell

In apparatus for mixing and then separating different flow streams, such as solvent extraction apparatus, a cascade of contactors and jet pumps are arranged in counter-current flow mode. The same one flow stream is applied to the drive port of each jet pump in the cascade and the other flow stream is applied to the suction port of each jet pump in the cascade. The jet pumps in the cascade increase in size from a high pressure to a low pressure end of the cascade so that the suction pressure required at successive jet pumps is reduced.

Jet pump system for fluidic contactor cascade

On-line density/weight measurements are made in liquid handling plant by isolating part of the plant, e.g. a tank such as an accountancy tank in nuclear fuel reprocessing plant, from the remainder of the plant in terms of force transmission and supporting the isolated part through the agency of a null-deflection weighing mechanism which cna be tared off to indicate the weight of liquid (and any solids content) occupying the isolated part of the plant.

Direct weighing of liquid handling plant

A fluidic contactor comprising a vortex stage and a separator stage. The vortex stage is in the form of a vortex chamber whereby fluids of different densities when introduced into the chamber through one or more tangential inlets are caused to swirl through the chamber before passing into the separator stage which is in the form of a column forming an extension of an axial outlet from the vortex chamber. In passing along the column the fluids become separated and emerge through separated outlets at the end of the column remote from the chamber. The fluids can be mixed together before entry into the chamber or separate fluids can be intimately mixed together in swirling through the chamber, in each case to permit mass transfer of constituents between the fluids.

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Forton, United Kingdom

Jaswant Singh