Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Reexamination Certificate
2004-06-01
2010-06-08
Drodge, Joseph W (Department: 1797)
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
C210S511000, C210S519000, C210S522000, C210S532100, C210S538000, C210S801000, C210S802000, C210S803000, C423S024000, C423S027000, C423S658500, C422S070000, C422S256000, C422S258000
Reexamination Certificate
active
07731853
ABSTRACT:
The invention relates to a method and equipment with which an organic solution extraction solution is purified from entrainment of aqueous solution and impurities during hydrometallurgical liquid-liquid extraction. The method treats an organic extraction solution, which is loaded with a valuable metal or valuable substance from the aqueous solution. The purpose is to carry out the physical separation of water droplets and the chemical removal of impurities from the organic extraction solution simultaneously.
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Ekman Eero
Kuusisto Raimo
Lyyra Juhani
Nyman Bror
Pekkala Pertti
Chernoff Vilhauer McClung & Stenzel LLP
Drodge Joseph W
Outotec Oyj
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