Introduction
The Macroporous Adsorption Resin AB-8 is a cutting-edge material designed for the efficient separation and purification of organic compounds. Developed by Hebei Lijiang Biotechnology Co., Ltd., this resin offers exceptional performance in various industrial and research applications. This article provides an in-depth analysis of its features, technical specifications, and practical uses.

Product Overview
The Macroporous Adsorption Resin AB-8 is a weakly polar copolymer based on styrene and divinylbenzene. It is engineered to adsorb water-soluble and weakly polar substances such as stevioside, alkaloids, and other organic compounds. Its unique structure and properties make it a versatile tool in pharmaceutical, food, and environmental industries.
Produced by Hebei Lijiang Biotechnology Co., Ltd., a leading manufacturer in China, the resin is designed to meet stringent quality standards. The company’s commitment to innovation and reliability ensures that the AB-8 resin delivers consistent results in separation and purification processes.
Technical Specifications
| Parameter | Specification |
|---|---|
| Appearance | Milky white opaque spherical beads |
| Resin Structure | PSD (Polystyrene-Divinylbenzene) |
| Polarity | Weakly 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% |
| Real Density | 1.05–1.09 g/ml |
| Bulk Density | 0.65–0.70 g/ml |
| Specific Surface Area | ≥480 m²/g |
| Adsorption Capacity | ≥45 mg/g |
Key Features
- High Selectivity: The resin exhibits strong selectivity for organic compounds, making it ideal for separating complex mixtures.
- Chemical Stability: It is insoluble in acids, alkalis, and organic solvents, ensuring durability in harsh environments.
- Easy Regeneration: The resin can be efficiently regenerated using water, dilute acids, or low-boiling solvents like ethanol or acetone.
- Excellent Mechanical Strength: This ensures a long service life even under continuous use.
- Observability: The milky white or light yellow color allows for easy monitoring of the separation process.
Applications
The Macroporous Adsorption Resin AB-8 is widely used in the following areas:
- Pharmaceutical Industry: For the extraction and purification of alkaloids, glycosides, and other bioactive compounds.
- Food and Beverage: In the separation of natural products like stevioside from plant sources.
- Environmental Protection: For the removal of organic pollutants from water and wastewater.
- Research and Development: As a tool for studying adsorption mechanisms and optimizing separation processes.
According to NIST, advanced materials like the AB-8 resin play a critical role in modern separation technologies, contributing to the development of sustainable and efficient processes.
Pretreatment and Regeneration
Pretreatment
To prepare the resin for use, follow these steps:
- Add 10–20 cm of ethanol above the resin layer and soak for 3–4 hours.
- Drain the soaking solution and repeat washing until the effluent is clear.
- Rinse with clean water until no ethanol odor remains.
Enhanced Regeneration
If the resin becomes contaminated or loses adsorption capacity, perform the following:
- Soak in 3–5% hydrochloric acid for 2–4 hours, then rinse with water until neutral pH.
- Soak in 5% sodium hydroxide solution for 2–4 hours, followed by thorough rinsing with water.
- Repeat the process until the resin is fully regenerated.
Precautions
- Store the resin at 5–40°C to prevent freezing or mold growth.
- Avoid direct water injection if the resin is dehydrated; instead, rehydrate with ethanol first.
- Ensure feed solutions are filtered and clarified before use to prevent resin poisoning.
- Store the resin in clean water or saturated saline/ethanol if not in use for extended periods.
About Hebei Lijiang Biotechnology Co., Ltd.
Hebei Lijiang Biotechnology Co., Ltd. is a leading manufacturer of advanced materials, specializing in the production of macroporous adsorption resins. With a focus on innovation and quality, the company provides solutions for industries requiring precise separation and purification technologies. Their products are trusted globally for their reliability and performance.
Conclusion
The Macroporous Adsorption Resin AB-8 is a high-performance material that excels in separation and purification processes. Its unique properties, combined with the expertise of Hebei Lijiang Biotechnology Co., Ltd., make it an essential tool in various industrial applications. Whether in pharmaceuticals, food processing, or environmental protection, the AB-8 resin offers a reliable and efficient solution.
Hebei Lijiang Biotechnology Co., Ltd, is a new material manufacturer specializing in the production of high-performance special ion exchange resins.mixed bed resin suppliers It is a modern high-tech enterprise that integrates the research and development,production, sales, and service of resin materials and resin terminal products.ion exchange resin The company is committed to producing high-quality industrial grade, food grade,pharmaceutical grade, and nuclear grade resins.cation exchange resin It has passed ISO9001 management certification,SGS certification, and WQA international certification from the American Water Quality Association, and has obtained a national food hygiene license. Food grade resin products comply with FDA standards in the United States.super blog