Lewatit® IN 50 is an inert, solid, plastic material supplied in spherical form for application in upflow regenerated ion exchange systems. It is used as a covering and protection layer for the upper collection/distribution nozzles. Lewatit IN 50 is specially designed for applications with Lewatit Reverse WS-Systems and other packed bed systems. Lewatit IN 50 has a specific gravity that is lighter than water, and therefore it will float on the surface of an ion exchange resin bed. It is also prepared in a particle size distribution designed to optimize flow performance in a reverse fluidized bed operation. During the down flow service cycle the Lewatit IN 50 acts as an inert spacer material that provides a uniformly distributed particle zone for fluid passage through the resin bed to the collection system. During the upflow compaction and regeneration cycle the Lewatit IN 50 resin allows dirt and resin fragments to pass through the inert zone to waste while retaining the resin bed and protection the collector system.Information provided by Lanxess. |