Lewatit® MonoPlus TP 214 is monospherical, macroporous, chelating resin with thiourea groups having a high affinity for mercury. Next to this special mercury selectivity. Lewatit MonoPlus TP 214 has a high selectivity for PGM metals such as platinum, gold and silver. For these reasons, it is specially used for- the removal of mercury in flue gas scrubbing processes
- the removal of mercury from brines in front of chloralkali membrane processes and effluents from chloralkali electrolysis plants using mercury process
- the removal of mercury from ground water
- metal separation and recovery in hydrometallurgy
- the recovery of PFM-metals from rinse water and exhausted process solutions
- recovery of palladium catalysis from organic process streams
Cations are removed from solutions in the following order: Hg2>Ag>Au1/3>Pt2/4> Cu2>Pb2/4>Bi2>Sn2>Zn2>Cd2>Ni2 Based on more than 25 years of experience with the old replaced heterodispersed Lewatit TP 214, this new resin, produced by a new patented process, offers clear advantages:- a higher mechanical and osmotic stability
- better kinetics
- a 10-20% higher capacity, depending on process conditions
- a remarkable low leakage according to the process conditions
The regeneration of Lewatit MonoPlus TP 214 exhausted with mercury is not possible with usually applied regenerant solutions. Therefore, exhausted resins can only be disposed in accordance with the local regulations governing their disposal. The regeneration of Lewatit Monoplus TP 214 exhausted with precious metal sin general is not possible. The recovery of these metals is usually practiced by incineration in special designed furnaces. The regeneration of Lewatit MonoPlus TP 214 loaded with Zn2, Cd2, Ni2, Pb2, Cu2, is partially possible but connected with intellectual properties of third parties.Information provided by Lanxess. |
