Cationic Resin
Cationic resin (food grade) is specially developed for customers with food-grade requirements. It has the characteristics of low organic residues and no acid return. The resin is washed multiple times with steam and hot water, and the pipes are made of stainless steel pipes or steel-lined PTFE pipes, which can meet the stringent dissolution requirements.
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Describe
Product Features
- Structural characteristics: A porous sphere made of a high-molecular polymer (such as a styrene-divinylbenzene copolymer) with exchangeable cationic groups (such as sulfonic acid groups and carbonyl groups) on the surface.
- Exchange capacity: The total amount of cations that can be exchanged per unit volume of resin (usually 4-5mmol/g) is the core indicator to measure the adsorption capacity. The higher the capacity, the stronger the processing efficiency.
- Physical properties: Uniform particles (particle size 0.3-1.2mm), high mechanical strength, not easy to break in the exchange column, acid resistance, temperature resistance (usually≤120℃), long service life (generally 3-5 years).
Product Advantages
- Precise removal of cations: it can selectively adsorb heavy metal ions (such as copper, nickel, lead), calcium and magnesium ions (demineralized water) and ammonium ions (denitrification) in sewage, with a removal efficiency of more than 99%.
- Recyclable: After adsorption and saturation, the exchange capacity can be restored by treatment with regenerating agents such as hydrochloric acid and sulfuric acid, which can be reused many times and reduce the cost of consumables.
- The water quality of the effluent is stable: it is less affected by fluctuations in the concentration and flow rate of the effluent, and the water quality after treatment can meet the discharge or reuse standards, especially suitable for industries with high water quality requirements such as electronics and pharmaceuticals.
- Environmental protection and no secondary pollution: no need to add chemicals, purification is only achieved through ion exchange reaction, and no sludge or toxic by-products will be produced.
Product Technical Specifications
| Item | Cationic Resin (food grade) |
| Particle Size Range (mm) | 0.315-1.25mm ≥99% |
| Solid Form | Ionic form H+/OH- |
| Volume Exchange Capacity (mmol/ml) | ≥1.9 |
| Moisture Content (%) | 45-50 |
| Apparent Density (g/ml) | 0.77-0.87 |
Applications
- Water treatment: remove heavy metal ions (such as copper and lead), demineralized water (in addition to calcium and magnesium ions), and denitrification (in addition to ammonium root ions) from the water. It is suitable for industrial wastewater treatment, drinking water purification, and boiler water softening.
- Material purification: In the fields of chemical industry and medicine, it is used to separate and extract amino acids, antibiotics, or purify rare metals and precious metals.
- Other fields: used as a catalyst for organic synthesis reactions, or in the food industry to remove impurity ions from sucrose.
