Freeport Research and Engineering Co.

Thomas A Headington

A process for the recovery of an organic phase and an aqueous phase from three phase emulsions such as those formed during the extraction of uranium from wet phosphoric acid is described. Such emulsions contain a light-density liquid phase and a heavy-density liquid phase and are stabilized by a solid phase of intermediate density. The emulsion is first heated and then separated into its three components using a centrifugal filter with an appropriate filter aid. At high filter feed rates the dense liquid phase passes freely through the filter media while the light phase liquid begins to accumulate in the centrifuge and is withdrawn from the centrifuge via a properly positioned skimmer tube. The apparatus containing the skimmer tube is also described.

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New Orleans, LA, United States of America

Thomas A Headington