Mass Transfer
In a counter-current extractor, as the axial mixing increases, the extraction efficiency

Increases
Decreases
Remains unchanged
Depends on the pressure of the system

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Mass Transfer
An example of elutioh is

Separation of sugar from sugar beet by hot water
Dissolution of tannin out of tree barks by water
Separation of uranium oxide from its ore by H₂SO₄ in a Pachuca tank
Recovery of vegetable oils from seeds

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