Ion- Exchange Resin
Ion exchange is a reversible chemical reaction wherein an ion (an atom or
molecule that has lost or gained an electron and thus acquired an electrical charge)
from solution is exchanged for a similarly charged ion attached to an immobile
solid particle. These solid ion exchange particles are either naturally occurring
inorganic zeolites or synthetically produced organic resins. The synthetic organic
resins are the predominant type used today because their characteristics can be
tailored to specific applications.
An organic ion exchange resin is composed
of high-molecular-weight polyelectrolyte that can exchange their mobile ions
for ions of similar charge from the surrounding medium. Each resin has a distinct
number of mobile ion sites that set the maximum quantity of exchanges per unit
of resin.
Application:
1. Water softening Plant.
2. Demineraliser Plant.
3. Mix-bed Plant, etc.
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