Title:
DEVICE AND METHOD OF EXTRACTING SOLVENT
Document Type and Number:
Japanese Patent JPS55149605
Kind Code:
A
Abstract:
A liquid-liquid solvent extraction system comprises a mixing stage which includes a mixing device (10) for creating a dispersion of the two liquid phases followed by a residence chamber (14) designed to enhance contacting and mass transfer between the solute and solvent phases. The separating stage includes a drop size conditioning device (15) which establishes a drop size in the discontinuous liquid phase of the dispersion which can be easily separated from the continuous liquid phase in the succeeding settling device (16). The conditioning device (15) also acts to reduce entrainment of the solvent phase in the solute phase during separation of the phases. The settling device (16) may contain a series of baffles to reduce the time required for phase separation and to reduce entrainment of the solvent phase in the solute phase.
The system is used to extract metal ions such as uranium, copper, cobalt, nickel, and vanadium from aqueous process streams containing dilute concentrations of such ions. Hydrocarbon solvents which are partially or totally immiscible in water are used to extract the metal ions and may contain additives such as complexforming agents to aid in the mass transfer of metal ions to the solvent phase. After contacting and separation of the phases, the metal ions are recovered from the hydrocarbon solvent.
Inventors:
DONARUDO ROI RIBII
SUN JIEI CHIEN
SUN JIEI CHIEN
Application Number:
JP5773580A
Publication Date:
November 21, 1980
Filing Date:
April 30, 1980
Export Citation:
Assignee:
KENICS CORP
International Classes:
B01D11/04; C22B60/02; (IPC1-7): B01D11/04; C22B60/02