Continuously operating solid-jacket counterflow centrifugal extr

Details Continuously operating solid-jacket counterflow centrifugal extr Continuously operating solid-jacket counterflow centrifugal extr

1978-01-11

1979-04-03

Krizmanich, George H.

Chemistry: physical processes

233 15, B04B 120, B04B 506

Patent

active

041472934

ABSTRACT:
A continuously operating counterflow centrifugal extractor suitable for liquid-liquid extractions wherein solids can be separated with the heavier phase. The extractor (FIG. 1) includes a horizontally disposed drum 8, 9 rotated by pulley 15 which is mounted on hollow shaft extension 6. A transport screw 10 is mounted on a shaft 11 and is rotated by forces developed in the liquid at a rate different than the rate of rotation of the drum. The two liquids are introduced into opposite ends of a mixing zone A. After mixing the heavier phase passes through clarification zone C to outlet 20 and the lighter phase passes through the clarification zone B and on to pump 21 which is mounted on shaft 11 and rotates with the transport screw 10. The difference in rotation rates can be controlled by operation of a throttle 27.

REFERENCES:
patent: 2528974 (1950-11-01), Ritsch
patent: 3052401 (1962-09-01), Thylefors
patent: 3494542 (1970-02-01), Craig et al.
patent: 3802621 (1974-04-01), Merzenich
patent: 3934792 (1976-01-01), High et al.
patent: 3971509 (1976-07-01), Johnsen

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