Piao Yichun FD450
1. Product Introduction
"Piao Yichun" brand FD450 is a macroporous adsorption ion exchange resin based on styrene-DVB. It offers superior kinetics performance and greater resistance to oxidation and osmotic shock. FD450 can achieve high regeneration efficiency with a small amount of regenerant and produce high operating capacity. Large organic molecules can be easily removed and eluted, all thanks to the macroporous structure of FD450. The resin is supplied in free amine form. It is mainly used to remove impurities, decolorize and debitterize food and beverages, and improve product quality.
2. Physicochemical Performance Indicators
| Item |
Specification |
| Appearance |
Light yellow spherical beads |
| Polymer Structure |
Styrene - DVB |
| Type |
Macroporous adsorption |
| Functional Group |
R---N(CH3) H2O |
| Ionic Form |
Free amine |
| Moisture Content % |
52-60 |
| Volume Capacity mmol/ml |
≥1.45 |
| Bulk Density g/ml |
0.62--0.72 |
| True Density g/ml |
1.05-1.06 |
| Particle Size (0.315-1.25mm) % |
≥95 |
| Effective Size mm |
0.315 -- 1.25 |
| Uniformity Coefficient |
≤1.60 |
| Swelling Rate (Na⁺-H⁺) |
≤25 |
| Sphere Rate after Attrition |
≥95 |
3. Operating Indicators
| Item |
Specification |
| pH Range |
0 -- 9 |
| Bed Height m |
1.0 -- 3.0 |
| Regenerant |
NaOH |
| Regeneration Level g/mol |
45-60 |
| Regenerant Concentration % |
1-4 |
| Regenerant Flow Rate m/h |
2-10 |
| Regenerant Temperature ℃ |
Room temperature |
| Regenerant Contact Time min |
> 30 |
| Exchange Flow Rate m/h |
3-6, exchange time 20-30 min |
| Rinse Flow Rate m/h |
20-30 |
| Rinse Time min |
10-20 |
| Operating Flow Rate m/h |
20-40 |
4. Product Application
Typical applications of FD450 include juice decalcification, juice decolorization and debitterization, removal of ash components, juice purification, improvement of color value, light transmittance, color stability, and overall product quality enhancement.
5. Resin Pretreatment
- Add 1/3 to 1/2 of pure water or softened water to the exchange column, load the resin into the column, ensuring no air bubbles in the resin layer.
- Pass 2-3% sodium hydroxide solution through the resin layer at a flow rate of 1-2 BV, for about 1-2 hours (15-20 minutes under experimental conditions). The effluent being alkaline indicates sufficient alkali.
- Rinse with pure water until the effluent pH is below 8.
- Pass 2-3% hydrochloric acid through the resin layer at a flow rate of 1-2 BV for about half an hour for conversion. The effluent being acidic indicates sufficient acid.
- Rinse with pure water or softened water until the pH is near neutral, then it is ready for use.
