Top Grade Weak Base Anion Exchange Resin

Lanlang ® TA301D Is a premium grade macroporous weak base anion exchange resin with polystyrene matrix and tertiary amine (Dimethylamine) function group in standard Gaussian size distribution. Its macroporous structure makes it can adsorb soluble organic molecules and can resist to osmotic & mechanical shock and oxidation. The weak base functionality makes TA301D could be regenerated easily even using waste caustic left from regeneration of strong base anion resin. So TA301D could be used multi bed demineralizers to prolong the lifetime of strong based anion resin and prevent it from organic fouling.
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Product Details

TA301D weak base anion exchange resin

Basic Features:


Water demineralization (deionization), strong acids removal.

Polymer matrix structure:

Macroporous polystyrene crosslinked with divinylbenzene (DVB)


Beige opaque, spherical beads

Functional Group:

Tertiary amine (Dimethylamine)

Ionic form as shipped:

Free base

Other info:

The regeneration method of weak base anion exchange resin is characterized in that: at a temperature of 5 to 50 ° C, a wet method column is used, and the anion one to be regenerated is packed into a glass chromatography column with a diameter to height ratio of 1: 2 to 1 : 8, pass 0.5 ~ 8BV alcohol-alkali solution through anion column, wash with water to pH ≤9, then pass 0.5 ~ 6BV hydrochloric acid solution through anion exchange column, wash with water to pH≥5, and finally pass 0.5 ~ 6BV hydrogen The sodium oxide solution was passed into an anion exchange column and washed with water to pH ≤9, that is, the regeneration of the anion resin was completed.


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