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Lewatit CNP 80

Lewatit®CNP 80 is a weakly acidic, macroporous, acrylic-based cation exchange resin of standard bead size distribution. Due to its very high total and operating capacity, excellent chemical and mechanical stability together with high resistance to osmotic shock, it is preferable used for dealkalization. The arrangement with strong dissociated cation exchanger    (Lewatit®MonoPlus S 100), in demineralization units leads to higher regeneration efficiency.

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Properties & benefits
following applications:
only requires a low excess of regenerant acid, it can be economically used in the

  • dealkalisation of industrial water operated with co-current systems
  • in combination with a strong acidic cation exchange resin, e.g. Lewatit® MonoPlus S 100, in a decationization unit for the demineralisation of water
  • removal of temporary hardness (hardness associated with alkalinity)
  • in a single bed unit downstream from a demineralization unit (polisher) for the removal of cations present as hydroxides at flow rates up to 50 m/h.
  • in produced water softening as single filter unit or in combination with Lewatit® S 1467, as polisher
  • in its sodium-form for the removal/extraction of heavy metals such as copper, nickel and zinc from electroplating rinse waters at a pH-value > 5 in absence of calcium and complexing agents.


Ion Exchange Resin



Shuo Tang
Sales Manager Greater China

LANXESS Chemical (China) Company Limited

6F, 5 Corporate Avenue

150 Hu Bin Road, Huangpu District

200021 Shanghai

China, CN

Phone: +86 21 6109 6846

Fax: +86 21 6109 6847

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