Lewatit® S 4468 is a food grade, macroporous, monodisperse, medium basic anion exchange resin based on a styrene-divinylbenzene copolymer. The resin can be applied in the following processes: - Lewatit WS system (fluidized bed)
- Lewatit VWS system (compound fluidized bed)
- Standard co current regenerated system.
In its free base form, the Lewatit S 4468 is suitable for the removal of acid and simultaneous decolorization of solutions of organic products such as glucose, fructose or dextrose (particularly suitable due to low fructose formation) and other sugars, etc. The macroporous structure and the relation between the weakly and strongly basic groups ensures very good adsorption of organic substances (e.g colorants) and partial adsorption of organic acids and mineral acids. The substances are easy to desorb by regeneration with a solution of caustic soda. If using the Lewatit S 4468 to treat potable water and the aqueous solution listed above, special care should be given to the initial cycles of the new resin.Information provided by Lanxess. |
