ion exchange resin - Tedimex

ION-EXCHANGE RESINS 

An ion-exchange resin is an insoluble matrix 

in the form of small (1–2 mm diameter) 

beads, usually white or yellowish, fabricated 

from an organic polymer substrate. The 

material has highly developed structure of 

pores on the surface which are sites where 

ions are easily trapped and released. The 

trapping of ions takes place only with 

simultaneous releasing of other ions, thus 

the process is called ion-exchange. 

Depending on the application, there are 

different types of ion-exchange resin 

available. As beads they are widely used in 

different separation, purification, and 

decontamination processes. The most 

common examples are water softening and 

water purification. 

Water softening 

In this application, ion-exchange resins are used to replace the magnesium and calcium 

ions found in hard water with sodium ions. When the resin is fresh, it contains sodium ions 

at its active sites. When in contact with a solution containing magnesium and calcium ions 

(but a low concentration of sodium ions), the magnesium and calcium ions preferentially 

migrate out of solution to the active sites on the resin, being replaced in solution by sodium 

ions. This process reaches equilibrium with a much lower concentration of magnesium and 

calcium ions in solution than was started with. 

The resin can be recharged by washing it with a solution containing a high concentration of 

sodium ions (e.g. it has large amounts of common salt (NaCl) dissolved in it). The calcium 

and magnesium ions migrate off the resin, being replaced by sodium ions from the solution 

until a new equilibrium is reached. 

Water purification 

In this application, ion-exchange resins are used to remove poisonous (e.g. copper) and 

heavy metal (e.g. lead or cadmium) ions from solution, replacing them with more innocuous 

ions, such as sodium and potassium. 

Few ion-exchange resins remove chlorine or organic contaminants from water - this is 

usually done by using an activated charcoal filter mixed in with the resin. There are some 

ion-exchange resins that do remove organic ions, such as MIEX (magnetic ion-exchange) 

resins. Domestic water purification resin is not usually recharged - the resin is discarded 

when it can no longer be used. 

g:\homepage - 2010\dateien sar\ion exchange resin.doc 

27.04.11 

Tedimex GmbH · Hittfelder-Kirchweg 21 · D-21220 Seevetal 

phone: +49 4105 598 62 10 · fax +49 4105 598 62 20 · sales@tedimex.de · www.tedimex.de

MB 400 

MB 400 resin is a ready for use mixture of powdered cation and anion exchange resins. This 

resin is designed to be applied to pre-coat filters to demineralise and filter liquids to a high 

degree of purity. 

MB 400 resin is the ideal choice for the treatment of neutral or slightly alkaline condensates 

and offers the following advantages: 

• Total absence of unpleasant smell, 

• Highly efficient filtration, 

• Cycles usually longer, resulting in less resin consumption, 

• Reduction in the volume of spent resin sludge to be destroyed or stored. 

MB 400 resin is prepared from resins which have been nearly 100% regenerated with a 

high-purity reagent. 

Typical Properties 

These properties are typical but do not constitute specifications ! 

Cation component 75% dry weight 

Anion component 25% dry weight 

Ionic form as shipped H + /OH - 

Cationic exchange capacity 4,8 meq/g of dry resin (minimum) 

Anionic exchange capacity 3,5 meq/g of dry resin (minimum) 

Moisture content 52 to 57% (approximate) 

Purity 

Conversion H + > 98% OH - > 94% 

Iron < 50 ppm of dry matter 

Copper < 50 ppm of dry matter 

Aluminium < 50 ppm of dry matter 

Heavy metals (as Lead) < 10 ppm of dry matter 

Typical Conditions of Use 

Quantity 0,7 to 1 kg/m 2 of filter area 

Filtration rate 5 to 10 m/h, usually about 8 m/h, i.e, 8 m 3 /m 2 /h of filter area 

Temperature 60 to 100°C (100°C in a thermal power station) 

Pressure drop Pressure drop due to the micro-resin is very low (no 

turbidity in the supernatant) usually 0,05 to 0,1 bar 

(excluding the pressure drop due to the filter) at the 

Precoat replacement 

beginning of the cycle 

Pressure drop: 1,5 to 1,8 bar or conductivity: 1µS/cm or 

effluent = influent or ionic leakage 

We reserve the right to change specifications without further notice ! 


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MB 20 

AMBERLITE MB20 is an ionically equilibrated mixed bed resin. Ready for use, it is a mixture 

of a strongly acidic cation exchanger with a strongly basic type 1 anion exchanger. 

AMBERLITE MB20 has been developed for the production of high purity water. It can be 

used for all applications requiring totally demineralised water, free of silica and of carbon 

dioxide. 

PROPERTIES 

Composition in volume *1 

Cation component : 38 to 44 % 

Anion component : 56 to 62 % 

Ionic form as shipped H + / 0H - 

Bulk density *1 

665 to 740 g/l 

Chemical stability Insoluble in water, dilute solution of 

acids and bases or common solvents 

*1 = Contractual value 

Test methods are available on request. 

SUGGESTED OPERATING CONDITIONS 

Maximum operating temperature 60°C 

Minimum bed depth 700 mm 

Service flow rate 20 to 40 BV/h *2 

Regenerants Cation component : HCl or H2S04 

Anion component : NaOH 

*2 = 1 BV (bed volume) = 1m³ solution per m³ resin 



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AMBERJET 1200 Na 

AMBERJET 1200 Na is a uniform particle size, high quality, strong acid cation exchanger 

designed for use in all water treatment applications: softening as well as demineralisation. 

The uniformity and mean particle size of AMBERJET 1200 Na has been optimised for 

use in industrial equipment. In H + cycle, it can be used in mixed bed applications paired with 

AMBERJET 4200 CL. 

AMBERJET 1200 Na can be directly substituted for conventional gel cation exchange resin 

in new equipment and in rebeds of existing installations. 

PROPERTIES 

Matrix Styrene divinylbenzene copolymer 

Functional groups SO3 

Physical form Insoluble, amber beads 

Ionic form as shipped Na + 

exchange capacity * > 2,0 eq /l (Na + form) 

Moisture holding capacity * 43 to 47 % (Na + form) 

Shipping weight 850 g/L 

Specific gravity 1,26 to 1,30 (Na + form) 

Uniformity coefficient * < 1,2 

Harmonic mean size 620 ± 50 pm 

Fines content * < 0,300 mm : 0.1 % max 

Coarse beads > 0,850 mm : 10 % max 

Maximum reversible swelling Na + → H + : 10 % 

* = Contractual value Test methods are available on request. 


Minimum bed depth 800 mm 

Service flow rate 5 to 50 BV/h ** 

Maximum service velocity 60 m/h 

Regenerant NaCl HCl H2S04 

Level 50 - 240 40 - 150 40 - 200 

Concentration 10 4 - 10 1 - 8 

Flow rate 2 - 8 2 - 5 2 - 20 

Minimum contact time 20 minutes 

Slow rinse 2 BV at regeneration flow rate 

Fast rinse 1 to 3 BV at service flow rate 

** 1 BV (Bed Volume) = 1 m3 solution per m3 resin 



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AMBERJET 4200 CL 

AMBERJET 4200 CL is a uniform particle size, gelular, high quality, strong base type 1 

anion exchanger designed for use in all general demineralization systems. The uniformity 

and mean particle size of AMBERJET 4200 CL have been optimized for use in industrial 

equipment including mixed beds, when paired with AMBERJET 1200 H, AMBERJET 1200 

Na or AMBERJET 1500 H. 

AMBERJET 4200 CL can be directly substituted for conventional gel anion exchange resin 

in new equipment and in rebeds of existing installations. 

PROPERTIES 

Matrix Styrene divinylbenzene copolymer 

Functional Groups Type 1 quaternary amine 

Physical Form Insoluble, light amber beads 

Ionic Form as Shipped Chloride 

Total Exchange Capacity 1.30 meq/ml minimum (C1 - form) 

Moisture Holding Capacity 49 to 55% (C1 - form) 

Shipping Weight 42 lbs/ft³ 

Harmonic mean size 0.60 to 0.80 mm 

Uniformity Coefficient 1.25 maximum 

Maximum Reversible Swelling Cl - → OH - : approximately 20 % 

Test methods are available on request. 


pH Range 0 - 14 

Maximum Operating Temperature 140 °F (OH - form) / 170 °F (C1 - form) 

Minimum Bed Depth 24 inches 

Service Flow Rate 1 to 6 gpm/ft³ 

Maximum Service Velocity 25 gpm/ft 2 

Regenerant (100% basis) NaOH 

Maximum Regeneration Temperature 120 °F maximum 

Flow Rate 0.25 - 1 gpm/ft³ 

Concentration 2 - 5 % 

Level 3 - 10 lbs/ft³ 

Minimum Contact Time 20 minutes 

Slow Rinse 15 gal/ft³ at regeneration flow rate 

Fast Rinse 25 to 50 gal/ft³ at service flow rate 



27.04.11

ion exchange resin - Tedimex

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