Weak Acid Cation Resin for Demineralisation

Lanlang® Weak Acid Cation Resin for Demineralisation is a top-notch product with superior capabilities in treating water for various applications. It is meticulously crafted to efficiently eliminate positively charged ions from water, making it a perfect choice for industries like power generation, chemical processing, and pharmaceutical manufacturing. This exceptional resin serves as a reliable and effective solution for water treatment, ensuring the provision of clean and safe water for every use.

In the presence of water, minerals and salts dissociate into their constituent ions. These dissolved solids consist of negatively-charged ions known as anions, and positively-charged ions known as cations, each of which are attracted to counterions (or ions of an opposing charge). Present within an IX column is a resin which consists of plastic beads to which an ionic functional group has been bound. These functional groups loosely hold ions of an opposing charge through mutual electrostatic attraction. During an active IX cycle, a water with dissolved ions is introduced to the resin. The ions in solution will exchange places with the ions on the resin beads, clinging to the resin's functional groups even as the resulting solution is drained away. IX happens when one ion has greater affinity for the functional group than the ion that is already present. The specific ionic contaminants present will dictate whether anionic and/or cationic resin types are needed.

In a typical IX reaction, the exchange of ions simply results in the replacement of contaminant ions with other, less objectionable, ions. In an IX sodium softening system, for example, the objective is to remove hardness ions (e.g. Ca2+ or Mg2+) from solution by replacing them with sodium ions (Na+). As a result, the treated solution will have little to no hardness, but it will contain a greater concentration of sodium ions.

Lanlang is the member of American Water Quality Association. In 2016, Lanlang obtained WQA Certification with NSF / ANSI61 and 372 standard. And in 2022, Lanlang obtained NSF Certification with NSF/ANSI44 and 42 standard.

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