Centrifugal contactor modified for end stage operation in a mult

Details Centrifugal contactor modified for end stage operation in a mult Centrifugal contactor modified for end stage operation in a mult

1989-06-13

1990-05-15

Jenkins, Robert W.

Imperforate bowl: centrifugal separators

Including plurality of separate and distinct bowls

And means external of bowls for conducting material...

494 35, 494 36, B04B 500

Patent

active

049254413

ABSTRACT:
A cascade formed of a plurality of centrifugal contactors useful for countercurrent solvent extraction processes such as utilizable for the reprocessing of nuclear reactor fuels is modified to permit operation in the event one or both end stages of the cascade become inoperative. Weir assemblies are connected to each of the two end stages by suitable conduits for separating liquids discharged from an inoperative end stage based upon the weight of the liquid phases uses in the solvent extraction process. The weir assembly at one end stage is constructed to separate and discharge the heaviest liquid phase while the weir assembly at the other end stage is constructed to separate and discharge the lightest liquid phase. These weir assemblies function to keep the liquid discharge from an inoperative end stages on the same weight phase a would occur from an operating end stage.

REFERENCES:
patent: 2510781 (1950-06-01), Howard
patent: 3273790 (1966-09-01), Dahlberg
patent: 4708709 (1987-11-01), Zeller
patent: 4781671 (1988-11-01), Pober
Jennings, A. S., A Miniature Centrifugal Contactor, Engineering and Equipment, DP-680, TID-4500, 17th Ed., U.S. Government Printing Office, Mar. 1962.
Kishbaugh, A. A., Performance of a Multi-Stage Centrifugal Contactor, DP-841, TID-4500, 23rd Ed., U.S. Government Printing Office, Oct. 1963.
W. D. Burch et al., Consolidated Fuel Reprocessing Program, Progress Report for Period Oct. 1 to Dec. 1984, ORNL/TM-9513, U.S. Government Printing Office, Feb. 1985.
W. D. Burch et al., Consolidated Fuel Reprocessing Program, Progress Report for Period Oct. 1 to Dec. 1986, ORNL/TM-10359, U.S. Government Printing Office, Jun. 1987.
R. T. Jubin, Preliminary Evaluation of Overflow Ports in a Four-Stage Experimental Centrifugal Solvent Extraction Contactor, ORNL/TM-9878, U.S. Government Printing Office, May 1986.
S. P. Singh, Operating Experience with Advanced Centrifugal Contactors in the Integrated Equipment Test Facility, ORNL/TM-10565, U.S. Government Printing Office, Dec. 1987.
R. T. Jubin et al., Developments in Centrifugal Contactor Technology, ORNL/TM-10768, U.S. Government Printing Office, Sept. 1988.

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