Weakly Acidic Cation Resin

The weakly acidic cation resin s have the carboxylic acid group (-COOH) as the exchange group. There are two kinds --- a methacrylic acid type and an acrylic acid type. The acrylic acid weakly acidic cation exchange resin is used for processing water with high carbonate hardness. The methacrylic...
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Product Details

The weakly acidic cation resins have the carboxylic acid group (-COOH) as the exchange group. There are two kinds --- a methacrylic acid type and an acrylic acid type. The acrylic acid weakly acidic cation exchange resin is used for processing water with high carbonate hardness. The methacrylic acid type is used for purification of antibiotics and amino acids.

Applications:

The acrylic acid-based weakly acidic cation resin has a little higher acidity and is used for processing high carbonate hardness water. Combined with a strongly acidic cation exchange resin in a demineralization system, the used regenerant solution from the strongly acidic resin can be used to regenerate the weakly acidic resin for cost and material savings.
On the other hand, the methacrylic acid-based resin is less acidic and is not used much for water processing. It is used for antibiotic and amino acid purification.

Usage:

Packed column or Batch processing

A disadvantage of the weakly acidic cation resin is a rapid volume change when going from the form with the H+ ion to a form with another ion. Since the resin may swell to nearly double its size, thorough precautions are required to prepare for higher fluid pressure drop across the column and to avoid damage to the column.

Lanlang TC113D Macroporous weak acid cation resin

Basic Features:

Application: Water softening, dealkalization and demineralization

Polymer matrix structure: Macroporous acrylic crosslinked with divinylbenzene (DVB)

Appearance: Light yellow, opaque, spherical beads

Functional Group: Carboxylic acid

Ionic form as shipped: H+ or Na+ when ordered as TC113D-Na

cation resin

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