Extraction of metal ions from an aqueous solution

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

1996-09-17

1998-04-14

Drodge, Joseph W.

Liquid purification or separation

Processes

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

2105021, 210684, 210688, B01D 1102, B01D 1104

Patent

active

057387915

ABSTRACT:
A method for the making and use of a porous, preferably dimensionally stable, hydrophobic polymer for the extraction of metal ions from an aqueous solution, with the polymer being in the form of a regenerative granulate or powder having an average particle diameter of from 0.1 to 10 mm and pores of from 0.1 to 50 .mu.m, which is obtained by the dissolving of a polymer, with heating, at a temperature above the upper critical demixing temperature Tc in a complexing agent containing hydrophobic liquid, followed by lowering of the temperature, resulting in a porous polymer filled with the hydrophobic liquid, and the mechanical diminution of the solidified mass is disclosed. Favorable results have been attained using polypropylene as the hydrophobic polymer, bis(2,4,4-trimethylpentyl)thio acid as the complexing agent, and with a mixture of dibenzyl toluene and/or polypropylene glycol ether being part of the hydrophobic liquid.

REFERENCES:
patent: 3960762 (1976-06-01), Kroebel et al.
patent: 4247498 (1981-01-01), Castro
patent: 4437994 (1984-03-01), Baker
patent: 4500494 (1985-02-01), Scher
patent: 4622344 (1986-11-01), Babcock et al.
patent: 4702838 (1987-10-01), Babcock et al.
patent: 5015448 (1991-05-01), Vorlop et al.
patent: 5279745 (1994-01-01), Jeffers et al.

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