Ion exchanger

    Product group

Ion exchanger

    Product name

     

LEWATIT

    Manufacturer       

     

LANXESS Deutschland GmbH, Leverkusen

New perspectives for water treatment

Ion exchangers are one of the most important tools for the treatment of aqueous solutions. Ever-increasing demands on the quality of water to be treated require ever more powerful ion exchangers and more efficient water treatment technologies. For 30 years BAYER/LANXESS has played a leading role in this regard.

The offering:
Powerful ion exchangers in combination with BAYER counterflow technologies such as fluidised-bed, lift-bed, rinse-bed and multistep.

The most established LEWATIT ion exchange types and their application examples

LEWATIT

Softening   

Desalination   

Special applications

MonoPlus S108 / SP112
  • Boiler feed water
  • Condensate
  • Household
  • (dishwasher, washing machine)
  • Laundries 
  • Textile industry
  • Sea water
  • Drinking water
  • Sugar solutions
  • Aquarium water
  • Fruit juice industry
  • Boiler feed water
  • Condensate
  • Electroplating
  • (rinse water and circulation water)
  • Sugar solution 
  • Glycerine  
  • Gelatine  
  • Whey
  • Hydrogen peroxide
  • Aquarium water
  • Alcohol
  • Adipic acid production
  • Recovery of reusable materials
  • Separation of rare earths
  • Pickling bath deferrisation
  • Ammonium nitrate recovery
  • Amino acid separation
  • Nitrate removal from water
  • Recovery of reusable materials
  • (chromium, molybdenum, copper, gold)
  • Cleaning of glacial acetic acid
  • Iron removal from concentrated hydrochloric acid
  • Uranium extraction
  • Decolouration of sugar juice

 

LEWATIT

Decarbonisation

Special applications

CNP 80 / S 8528 

  • Cooling water
  • Boiler feed water
  • Household water softener
  • Humidifier
  • Drinking water (coffee)
  • Irrigation water
  • Brewing water
  • Cleaning and isolation of natural substances
  • Selective exchanger (copper, nickel, cadmium, cobalt, zinc)
  • Amino acid separation
  • Extraction of antibiotics
  • Wastewater, neutralisation of brewing water
  • Removal of ammonia from condensates
  • NaOH removal from alcohols

 

LEWATIT

Desalination
Special applications

Special applications

MonoPlus M 500 / M 800 / M 600
MonoPlus MP 500
MonoPlus MP 600

In combination with cation exchangers
(refer to LEWATIT MonoPlus S 108 and MonoPlus SP 112) 

  • Nitrate removal from water
  • Recovery of reusable materials (chromium, molybdenum, gold)
  • Cleaning of glacial acetic acid
  • Iron removal from concentrated hydrochloric acid
  • Decolouration of sugar juice
  • Uranium extraction

 

LEWATIT

Desalination of aqueous solutions

Special applications

MonoPlus MP 62 / VPOC 1072
MonoPlus MP 64

In combination with MonoPlus S 108 / MonoPlus SP 112 depending on the composition of the solution  

  • Formic acid removal from formalin
  • Deacidification of fruit juices
  • Lactic acid removal from whey
  • Metal recovery (molybdenum, tungsten)
  • Cleaning of pharmaceuticals
  • Acid removal from wine

The main applications of ion exchange and their resin combination and application examples

Desalination / complete desalination

Purpose   

Removal of salts from aqueous and non-aqueous solutions for applications where totally ion-free water or product is needed.  

Resin / resin combination

depending on the water or
composition of the solution and its requirement

a) Desalination without SiO2 and CO2 removal

  • MonoPlus S 108 or SP 112
  • MP 62 / MonoPlus MP 64 / VP OC 1072


b) Desalination with CO2 + SiO2 removal

  • MonoPlus S 108 / SP 112
  • MonoPlus M 500 /M 600 /MP 500 /MP 600
  • OC 1071 / VP OC 1072 / VP OC 1073
  • Adsorber (VP OC 1074)


c) Fine cleaning in mixed bed

  • MonoPlus S 108/H / SP 112/ S 200 KR
  • MonoPlus M 800 / MP 500

Application examples

  • Feed water for high-pressure boiler
  • Process water for chemical industry
  • Paper (fine and electrically highly penetration-resistant papers)
  • Air-conditioners
  • Photo industry (production of emulsions and washing of films)
  • Semiconductor manufacturing
  • Electroplating

Softening

Purpose 

Removal of all hardness constituents calcium and magnesium
Production of “soft” water for applications in which for example the formation of insoluble or poorly soluble Ca-/Mg compounds should be avoided.

Resin / resin combination

  • MonoPlus S 108, SP 112


at additional decarbonisation:

  • CNP 80 - S 108
  • CNP 80 - SP 112

Application examples

  • Water for:
  • Steam generators
  • Laundries
  • Textile industry
  • Household (washing machine, dishwasher)
  • Beverage industry
  • Drinking wate

Decarbonisation

Purpose 

Removal of carbonate hardness, prevention of hard calcium carbonate precipitations, especially in tempered pipe and tank walls

Resin / resin combination

  • CNP 80, S 8528, S8227

Applications examples

  • Cooling water
  • Heating installations
  • Low pressure steam generator
  • Humidifier
  • Brewing and drinking water

Condensate purification

Resin / resin combination

  • MonoPlus SP 112 / MP 500
  • MonoPlus S 108 / M 500 / M 800

Complete desalination by reverse osmosis

Resin / resin combination

  • MonoPlus S 108
  • MonoPlus M 500 / M 600 / MP 500
  • MonoPlus MP 600

List of most commonly used types of LEWATIT ion exchangers with qualities and form of delivery

 

Description

Form of delivery

Cation exchanger 

strongly acidic, gel type

  • MonoPlus S108
  • MonoPlus S108
  • MonoPlus S100 G1
  • Lewatit S 100 KR-H/CL-free
  • MonoPlus S 200 KR/H
  • MonoPlus S 1667
  • MonoPlus S 1668 
  • H
  • Na
  • Na
  • H
  • H
  • Na
  • Na

strongly acidic, macroporous

  • MonoPlus SP 112
  • MonoPlus SP 112
  • H
  • Na

slightly acidic, macroporous

  • Lewatit CNP 80
  • Lewatit CNP 80 WS
  • Lewatit S 8227
  • Lewatit S 8528
  • H
  • H
  • H

 

Anion exchanger

strongly alkaline, gel type

  • MonoPlus M 500
  • MonoPlus M 600
  • MonoPlus M 800
  • MonoPlus M 500 KR/OH CL-free
  • MonoPlus M 800 KR/OH CL-free
  • CL
  • CL
  • CL
  • OH
  • OH

strongly basic, macroporous

  • MonoPlus 500
  • MonoPlus 800
  • MonoPlus 600
  • CL
  • CL
  • CL

weak / mixed alkaline        

  • MonoPlus MP 64 / MP 68
  • Lewatit MP 62
  • Lewatit MP 62 WS     
  • FB/CL
  • FB
  • FB

 

Selective exchanger

  • Lewatit TP 207
  • Lewatit TP 208
  • Lewatit TP 214
  • Lewatit TP 260
  • Di-Na
  • Di-Na
  • FB
  • NA

 

Mixtures

  • Lewatit SM 600 KR CL free
  • Lewatit SM 1000 KR CL free
  • IONAC NM 91
  • IONAC NM 60

 

  • H/OH
  • H/OH

 

Acrylic exchanger

  • Lewatit VPOC 1071
  • Lewatit VPOC 1072
  • Lewatit VPOC 1073
  • Lewatit VPOC 1074

 

  • CL
  • FB
  • FB/CL

Inert resin

  • Lewatit IN 42
  • Lewatit IN 50

LEWATIT MONOPLUS, the monodisperse ion exchangers from LANXESS

LEWATIT MonoPlus ion exchangers are functionalised gel type or macroporous styrene-divinylbenzene copolymers with a very narrow range of particle sizes produced by a special process. More than 90% of all beads are +- 0.05 mm around the target diameter. The uniform grain size produces a host of benefits in practical use in individual applications.

Advantages for the treatment of solutions

The uniform diameter of Lewatit monodisperse beads ensures an absolutely uniform structure of the resin bed in the filter column.

This means:

  • Easy backwashing
  • Even flow rate
  • Low pressure loss
  • Large layer heights
  • Higher speeds
  • No blocking of nozzles by fine grain
  • High mechanical and osmotic stability
  • Optimal grain size for the intended purpose
  • Same diffusion paths in all beads
  • Lower ion slippage


As a result:

  • Increased system capacity
  • High decolouration capacity
  • Effective regeneration
  • High selectivity in chromatography
  • High concentration of the eluted products
  • Advantages for catalysis

 

Advantages for water treatment       

In addition to the various advantages for the treatment of solutions further benefits add up such as:

  • Less backwash space
  • Lower wash water consumption
  • Complete separability in the mixed bed

As a result:

  • Excellent water quality
  • High capacity utilisation
  • Optimal container sizing
  • Less process water demand
  • Lower energy needs of pumps
  • Low backwash losses
  • Easy operation of system

Ansprechpartner

Thomas Blank
Sales of Specialty Chemicals
Phone +49 (0) 2751-524-134
Fax +49 (0) 2751-524-222134
E-mail contact