Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1999-04-19
2000-08-08
Therkorn, Ernest G.
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210638, 210511, B01D 1104
Patent
active
06099732&
ABSTRACT:
A method of solvent extraction for extracting a required component, such as a metal value, dissolved or dispersed in a support medium, constituting a first phase, e.g. an aqueous phase, by mixing the first phase with an extractant, constituting a second phase, e.g. an organic phase, insoluble or immiscible with the first phase. The second phase has a greater affinity for the required component in order to extract the component from the first phase into the second phase. After the mixing step, the phases are subjected to a settling phase in which the phases are caused to flow in counter-current fashion with respect to each other in order to separate the phases. Apparatus for carrying out the method is also provided.
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de Kock Elbie R.
Therkorn Ernest G.
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