Polymer beads containing an immobilized extractant for sorbing m

Details Polymer beads containing an immobilized extractant for sorbing m Polymer beads containing an immobilized extractant for sorbing m

1991-12-26

1994-01-18

Naff, David M.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210681, 4272133, 435179, 435182, 4352625, 435803, C02F 142, C12N 1112, C12N 1104, B01J 1302

Patent

active

052797457

ABSTRACT:
Polymer beads are prepared containing an immobilized extractant for sorbing metal contaminants at concentrations of less than 1 mg/L in dilute aqueous solutions. A preferred polymer is polysulfone and the extractant can be a biomass material or a synthetic chemical compound sorbed into activated carbon. The polymer beads are prepared by dissolving the polymer in an organic solvent to form a solution, adding the extractant to the solution to form a mixture and injecting the mixture through a nozzle into water to form the beads.

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