Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1991-03-26
1993-02-09
Drodge, Joseph W.
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210511, 210513, 210801, 210DIG5, 366292, 366320, 366348, 422228, 422229, 422259, B01D 1104, B01F 724
Patent
active
051850818
ABSTRACT:
A method and apparatus for mixing two different phases in a liquid-liquid extraction process and for separating the phases employs a spiral stirrer having two tubular coils for creating homogeneous circulation throughout a mixer. The stirrer rotates at a relatively slow speed to create an upward flow from bottom to top of the mixer near the mixer periphery and a downward flow in the middle of the mixer. The mixer has a flow reversing profile ring and is designed to prevent aeration and formation of an emulsion.
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Hultholm Stig-Erik
Lilja Launo L.
Makitalo Valto J.
Nyman Bror G.
Drodge Joseph W.
Outokumpu Oy
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