Sorbent for binding metals and production thereof
AssigneeInstraction GmbH
InventorsCHRISTIAN MEYER, MARTIN WELTER, THOMAS SCHWARZ
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Abstract
The present invention relates to a sorbent which is suitable for binding metals from solutions, the production of a corresponding sorbent as well as the use of the sorbent for binding metals from solutions.
Claims15
Sorbent, comprising a porous support material coated with an amino group-containing polymer, wherein the concentration of the amino groups of the sorbent determined by titration is at least 600 μmol/mL, based on the total volume of the sorbent.
Process for the production of a sorbent, which comprises the following steps:
- (a) providing a porous support material;
- (b) applying an amino group-containing polymer onto the porous support material by a pore filling method;
- (c) removing solvent used in the pore filling method;
- (d) repeating steps (b) and (c);
- and
- (e) crosslinking of the amino group-containing polymer.
A process for binding metals from solutions, comprising contacting a solution containing metal with a sorbent, wherein the sorbent is a porous support material coated with an amino group-containing polymer, wherein the concentration of the amino groups of the sorbent determined by titration is at least 300 μmol/mL.
Dependencies are inferred from the claim text.