The Liquid Purification Technologies (LPT) business unit of specialty chemicals company LANXESS is one of the key suppliers for liquid separation procedures worldwide. LANXESS holds a leading position in the development and production of ion exchange resins and is strongly committed to the growing the Lewabrane® reverse osmosis membrane business.
Lewatit® ion exchange resins from LANXESS are used to remove dissolved particles from liquids. In the ion exchange process, functional groups are bonded to the polymer beads. These functionalized polymers adsorb particular anions or cations from the liquid and discharge others. Water treatment is the best-known and biggest field of application for ion exchange resins. In households, ion exchange technology is used, among others, to soften water. In this process, calcium ions that are responsible for water hardness are replaced by sodium ions.
Ion exchange resins are also used in industry: in power generation, for example, Lewatit® ion exchange resins are used in the production of ultra-pure boiler feed water and steam to avoid incrustations and corrosion. This helps improve the efficiency, operating reliability and lifetime of power plants.
In the cleaning of industrial effluent and treatment of groundwater, water treatment is needed to remove toxic substances. LANXESS has a range of special Lewatit® resins that are able to selectively remove, for example, heavy metal ions and organic pollutants from (waste)water.
Other fields of application for ion exchange resins include semi-conductor production, galvanic industry (recovery and treatment of metals such as gold, copper, nickel or cobalt in hydrometallurgy), pharmaceuticals, and even the food and beverage industry. In the production of crystal sugar and liquid sugar syrup, Lewatit® ion exchange resins allow the brown cane sugar to be turned into the white product and help sugar retain its taste.
Lewatit® ion exchange resins are also reliable catalysts which are crucial for many chemical reactions.
LANXESS also manufactures Lewabrane® reverse-osmosis (RO) membranes for state-of-the-art desalination of seawater, brackish and low salinity waters in industrial and potable water applications. The Lewabrane® product line comes with a full service package that includes RO system design with our innovative LewaPlus™ software tool, membrane element testing and laboratory autopsy capabilities.
For further information contact your CCC sales representative.