Patent ID: 7753215

Claim:
An apparatus for liquid-liquid extraction configured to accommodate at least a first liquid phase and a second liquid phase, the apparatus comprising: a settler compartment having a top, a bottom, and a back wall; a first weir located in said settler compartment, said first weir comprising: a first side wall with an inlet opening that extends a first length at least partially between said top and bottom of said settler compartment; a second side wall that extends a second length at least partially between said top and bottom of said settler compartment, said second length being greater than said first length; a third wall that extends between said first side wall and said second side wall, said third wall extending in a non-parallel manner to said bottom; and a second weir located in said settler compartment adjacent said first weir, said second weir including a labyrinth section having: an inlet opening; at least a first and a second partition extending from said settler compartment bottom; and at least a third partition extending from said settler compartment top and located between said first and second partitions.