Review Ion Exchange - Startpage - VGB PowerTechwater+treatment+resins... · Finex Tailor-Made Ion Exchange Resins for Water Treatment Tiia Aromaa, [email protected] 2012

Finex

Tailor-Made Ion Exchange Resins for Water Treatment

Tiia Aromaa, [email protected]

2012

Finex in a nutshell

Location: Kotka, Finland History: - Resin production at current location in Kotka was established by FinnSugar in 1979 - Formation of Finex Oy in 1990 thru management buy-out - Hartwall Capital Ventures acquires majority position

in 2011 Employees: about 45 Revenue: circa 7 million € (2009) Export share: about 95 %

Finex Oy, Kotka www.finex.fi

Finex products

- Chromatographic resins for food industry

- Special polymers for casting industry

- Powdered and bead resins for power plants

- Pharma resins

- Other

Tailormade products for customers’ needs

Finex products are optimized for each customer’s needs and can be produced in a wide range of variations by adjusting the parameters, such as

• resin type

• mean particle size

• particle size distribution

• degree of crosslinkage

• ionic form

• cation/anion ratio in mixtures

Finex powdered resin mixtures for power plants

• Resins for condensate polishing in nuclear and conventional power plants

• Finex powdered resins are homogenous mixtures of strong cationic and anionic resins. Both are completely regenerated before size reduction so that the mixture is delivered ready to use.

• Powdered resins of Finex have low impurity content and good coating ability on candel filters.

• Finex produce powdered resins with various

cation-anion ratios to suit customers' wishes.

Finex powdered resin mixtures for power plants

Ionic form Cation/anion ration

Nuclear grade Conventional grade

H+/OH- 1 : 1 CA850H CA750H

2 : 1 CA867H CA767H

3 : 1 CA875H CA775H

NH4+/OH- 1 : 1 CA850N CA750N

2 : 1 CA867N CA767N

3 : 1 CA875N CA775N

H+ Pure cation C900H C800H

NH4+ Pure cation C900N C800N

OH- Pure anion A800OH A700OH

Main products

Powdered resins and precoat filtration

• Candel filters are coated with very thin layer of filter media (precoat)

• Suspension is pumped through the filter and filter media

• Solids/removed matters of the suspension are sticked into the precoat material

• Precoat material is changed when pressure drop becomes too high

Powdered resin in precoat filter

Precoat technology

• In precoat filtration powdered resins work as both mechanical filter and as an ion exchanger. This quarantees very effective removal of corrosion products, ions and other impurities present in the condensate (even ppb level).

• Precoat filtration is effective way to clean high flow rate (over 1 ton/second) condensates

Precoat technology

• Particle diffusion depends on particle diameter – Smaller bead size, higher surface area, more rapid diffusion

• Compared to standard bead size

cation-anion resins, the kinetics of

powdered resin mixtures is

appr. 100 times faster.

Particle size, mm

Exch

an

ge t

ime,

s

8% SAC

Finex bead resins for water treatment

• Bead resins are available as weak or strong acid cation and weak or strong base anion

• Finex bead resins have excellent mechanical and thermal stability

• Condensate polishing, softening, demineralization and water quality control

• Mixed bed resins – 50C/50A

– 40C/60A

Finex bead resins for water treatment

Characteristic CS16G Strong acid cation

Matrix Styrene divinylbenzene copolymer

Functional group

Sulphonic acid

Physical form

Translucent light brown beads

Ionic form H+,Na+ or as requested

Capacity min. 1,8 eq/l (H+)

Particle size 300-1200 mm

pH-range 0-14

Characteristic AS501G Strong base anion

Matrix Styrene divinylbenzene copolymer

Functional group

Quaternary ammonium

Physical form

Light amber beads

Ionic form Cl-, OH- or as requested

Capacity min. 1,3 eq/l (Cl-)

Particle size 300-1200 mm

pH-range 0-14

Finex Indicator

• Finex indicator is typically a gel type strong acid cation exchanger. It is used in water quality control applications.

• In the manufacturing process, the resin is injected with special purple indicator dye which reacts to the acidity within the beads. When the resin is exhausted, pH rises and resin colour change from purple to yellow.

Benefits of Finex

- Reliability • Our precise quality control and laboratory testing ensure

the uniform quality of the products - Flexibility

• Small is agile - being a small company we can react fast to the customer’s needs concerning the product, quantity, package and delivery times

- Cost efficiency • Short delivery times will help minimize customers’ stock

requirements and decrease the allocated working capital required

Benefits of Finex

- Customer-oriented service

• The product specification is always defined together with the customer

- Innovativity

• The continual improvement process is a part of the company culture

- Fresh products

• Our tailor-made resins are always produced after the order

Specify your needs,

we make the details