Extraction of metal ions from aqueous solution

Details Extraction of metal ions from aqueous solution Extraction of metal ions from aqueous solution

1980-08-14

1984-03-20

Spear, Jr., Frank A.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210651, B01D 1300

Patent

active

044379943

ABSTRACT:
A process of extraction of ions of metals from an aqueous feed solution and liberation of such in an aqueous product solution wherein the feed solution is circulated through the lumens of hollow fibers, the walls of said fibers consisting of a microporous membrane having the pores filled with an organic liquid comprising a complexing agent, and the ions travel through said walls to be liberated in an aqueous product solution circulated over the outside of the fibers. A preferred embodiment of the process employs an anisotropic microporous membrane having pores of about 0.01 to 0.04 micron in diameter at each surface and larger pores in the interior.

REFERENCES:
patent: 3691068 (1972-09-01), Cross
patent: 3956112 (1976-05-01), Lee et al.
patent: 4051230 (1977-09-01), Miyauchi

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