Special Anion Exchange Resin
for Demineralization and Decolorization
of Pure-water Preparations in Biopharmaceuticals Refining


KP-307A is an anion exchange resin synthesized with special technology. For its superior features of highly firm and solid structure and low swelling rate of granularity after reversible ionic replacement reactions, this resin performs with its high anti-osmotic efficiency and good oxidation resistance. This resin remains function with excellent ions exchange &adsorption and de-coloring performance within both organic and inorganic solutions, for its superior feature that mesh porosity of the resin does not vary from solution swelling. It is specialized in removing mineral substances and organic molecules from water-purification systems for further chemical engineering preparations to serve refining production purposes.

Specifically, considering majority of pollutants left in biochemical medicine wastewater vary from metal and nonmetallic ions, color organics to strong radicals, KP-307A is primarily used to ensure all the anions of such strong-acid salts as nitrate, chloride, or strong-base salts as calcium salts are completely removed, for its special weak-alkaline groups’ selective adsorbility to strong radicals only. Meanwhile traces of residual weak salts or weak negative-polarity organic molecules can also readily to be tightly captured by its macroporous porosity-structure.

For thorough purified-water preparations for biopharmaceutical refining production, KP-007 is often coupled with KP-307A to secure absolute removal of dissolved metallic ions or ammonium nitrogen cations, for the special strong-acid functional groups of KP-007 playing a key role in adsorbing those strong cations as well as potential non-polarity and positive-polarity organic molecules as ‘colored solutes’ therein.

Plus the weak property of its groups empowering easy elution and regeneration capability, KP-307A therefore is widely coupled applied in biopharmaceutical or petrochemical engineering used-water recycle and deionized water preparations.

Matrix: Styrene-based Polymer
Physical form: Offwhite opaque spherical beads
Moisture holding capacity(%): 50 to 60%
Ionic form as shipped: Free Amine Form
Total bulk exchange capacity: ≥1.42mmol/ml
Moisture true density: 1.03~1.06g/ml
Moisture bulk density: 0.65~0.72g/ml
Effective particle size: 0.40~0.70mm
Particle size: 0.315~1.25mm
Uniformity coefficient: ≤1.6
Integrated beads ratio after grinding test: ≥90℅
Max Swelling Rate of Resin after Ionic State Transition: FA ->Cl : 20%
Maximum operating temperature: 100°C
Minimum bed depth: 700mm
Service flow rate: 5~40 BV*/h
Maximum service velocity: 60 m/h
Regenerant: NaOH Na2CO3   NH3H2O
Level(Counted by100%) 50-110g/L 60-140g/L 40~100g/L
Concentration: 2~4℅ 2~4℅2~4℅
Flow rate: 2~8 BV/h 4~8 BV/h2~8 BV/h
Minimum contact time: 30min
Slow rinse: 5 BV at regeneration flow rate
Fast rinse: 10 BV at service flow rate
*1 BV(Bed Volume)= 1 solution per resin