LEWATIT® MDS TP 220
Product Description
Lewatit® MDS TP 220 is a macroporous weakly basic resin with chelating bis-picolylamine groups attached to a styrene/divinylbenzene co-polymer. Its monodisperse bead size distribution combined with a small mean bead size results in improved adsorption kinetics and an approx. 25% higher copper binding capacity relative to Lewatit® MonoPlus TP 220.
At a pH of 2, heavy metal cations are removed from aqueous solutions consistent with the following selectivity series:
Cu >> Ni2+ > UO2 2+ > Fe3+ > Zn2+ > Co2+ > Cd2+ > Fe2+.
Lewatit® MDS TP 220 is especially suitable for the use in the following applications:
- Purification of cobalt electrolytes (cobalt/nickel separation)
- Separation of nickel/copper from ferric solutions
- Recovery of copper from strongly acidic solutions (pH < 2)
- Purification of chromium(III) baths (removal of heavy metals such as copper and nickel)
- Adsorption of heavy metals (e.g. copper) from solutions containing strong chelating agents like EDTA
Whilst most metals are removed from the loaded resin with a conventional acid strip, copper can only efficiently be desorbed with ammonia solution.
Brand
LEWATIT®
Product Type
Ion Exchange Resin
Heavy metal removal
Refining of battery materials
Recovery of battery materials
Waste water treatment
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