Macroporous Adsorption Resin AB-8 is a high-performance material designed for the extraction, separation, and purification of water-soluble and weakly polar substances. Developed by Hebei Lijiang Biotechnology Co., Ltd., this resin is widely used in pharmaceutical, food, and environmental industries due to its exceptional stability, selectivity, and regeneration capabilities. This article provides an in-depth analysis of its features, technical specifications, applications, and the company behind it.
Understanding Macroporous Adsorption Resin AB-8
Macroporous Adsorption Resin AB-8 is a styrene-type weak polar copolymer synthesized using divinylbenzene as a crosslinking agent, methyl acrylate as a monomer, and toluene as a porogen. Its unique structure allows it to effectively adsorb and separate compounds such as stevioside, alkaloids, flavonoids, and saponins. The resin’s macroporous nature ensures high surface area and porosity, making it ideal for large-scale industrial applications.
Key Features of AB-8 Resin
- Stable Physical and Chemical Properties: AB-8 is insoluble in acids, alkalis, and organic solvents, making it highly versatile for various applications. Learn more
- High Selectivity: The resin exhibits strong selectivity for organic compounds, even in the presence of inorganic salts. This makes it particularly useful in complex mixtures.
- Easy Regeneration: AB-8 can be regenerated using water, dilute acids, alkalis, or low-boiling solvents like ethanol or acetone, ensuring cost-effective and sustainable use.
- Excellent Mechanical Strength: With a long service life, the resin maintains its integrity under rigorous operational conditions.
- Visual Convenience: Its milky white or light yellow color allows for easy monitoring of the adsorption process, especially when handling colored organic compounds.
Technical Specifications of AB-8 Resin
| Parameter | Specification |
|---|---|
| Appearance | Milky white opaque spherical beads |
| Resin Structure | PSD (Polystyrene Divinylbenzene) |
| Polarity | Weak polar |
| Moisture Content | 65%–75% |
| Particle Size Range | (60–16 mesh) 0.3–1.25 mm ≥90% |
| Average Pore Size | 13–14 nm |
| Pore Volume | 0.73–0.77 ml/g |
| Porosity | 42%–46% |
| Specific Surface Area | ≥480 m²/g |
| Adsorption Capacity | ≥45 mg/g |
Applications of AB-8 Resin
AB-8 resin is extensively used in the following industries:
- Pharmaceutical Industry: For the purification of alkaloids, flavonoids, and antibiotics. Explore pharmaceutical applications
- Food and Beverage: In the extraction and concentration of natural products like stevioside from plants.
- Environmental Protection: For water purification and the removal of organic pollutants.
- Traditional Chinese Medicine (TCM): Enhancing the separation of active compounds from herbal extracts.
Preparation and Regeneration Process
Pre-treatment: Industrial-grade AB-8 resin requires pre-treatment to remove inert solvents. This involves soaking the resin in ethanol, followed by thorough washing with water to eliminate residual ethanol.
Enhanced Regeneration: When the resin’s adsorption capacity declines, it can be regenerated using 3–5% hydrochloric acid and 5% sodium hydroxide solutions. The process ensures the resin is restored to its optimal performance. View detailed regeneration steps.
Storage and Handling Precautions
- Store at 5–40°C to prevent freezing or mildew.
- Avoid direct water injection if the resin dries out; instead, rehydrate it with ethanol before washing with water.
- Ensure the adsorbed solution is filtered and clarified before column loading to prevent resin poisoning.
- Keep the resin submerged in clean water or saturated saline/ethanol for long-term storage.
About Hebei Lijiang Biotechnology Co., Ltd.
Hebei Lijiang Biotechnology Co., Ltd. is a leading manufacturer of advanced resin materials, specializing in the development of anion chromatography resin, macroporous adsorption resin, and water purification resin. The company’s R&D center, led by Professor Shi Zuoqing, focuses on innovation and quality, ensuring compliance with international standards. With a commitment to excellence, Hebei Lijiang provides tailored solutions for diverse industrial applications. Visit the company page.
Expert Insights and Authority
According to the National Institute of Standards and Technology (NIST), the precision and reliability of materials like AB-8 resin are critical for industrial applications. NIST’s research emphasizes the importance of standardized testing and measurement in ensuring the performance of such materials. Learn more about NIST’s role in material science.
Conclusion
Macroporous Adsorption Resin AB-8 stands out as a versatile and efficient solution for separation and purification processes. Its robust technical specifications, ease of regeneration, and wide-ranging applications make it an indispensable tool in modern industries. By leveraging the expertise of Hebei Lijiang Biotechnology Co., Ltd., users can benefit from cutting-edge technology and reliable performance.
References
[1] National Institute of Standards and Technology (NIST). “Driving Innovation through Precision.” Retrieved from
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