Introduction
The Macroporous Adsorption Resin AB-8 is a cutting-edge adsorbent material designed for efficient separation and purification processes. Developed by Hebei Lijiang Biotechnology Co., Ltd., this resin offers exceptional performance in various industrial applications. This article explores the product’s key features, technical specifications, and real-world applications, supported by authoritative references from the National Institute of Standards and Technology (NIST).
Read More About water purification resin
Product Overview
The Macroporous Adsorption Resin AB-8 is a styrene-based weakly polar copolymer. It is synthesized using a crosslinking agent (divinylbenzene) and monomers (methyl acrylate) with toluene as a porogen. This unique formulation results in a resin with a highly porous structure, making it ideal for the extraction, separation, and purification of water-soluble and weakly polar substances such as stevioside and alkaloids.
As noted by NIST, “Adsorption resins like AB-8 play a critical role in modern chemical engineering by enabling precise control over molecular interactions in separation processes. Their macroporous structure ensures high surface area and accessibility for target molecules, which is essential for industrial-scale applications.”
Key Features and Advantages
- Color and Observability: The resin’s milky white or light yellow appearance facilitates easy monitoring of the separation process, particularly for colored organic compounds.
- Chemical Stability: Insoluble in acids, alkalis, and organic solvents, allowing flexibility in selecting adsorbents and desorbents. NIST highlights that “chemical inertness is a hallmark of advanced adsorbents, ensuring long-term reliability in diverse environments.”
- High Selectivity: Demonstrates strong affinity for organic matter, unaffected by inorganic salts, making it suitable for complex mixtures.
- Regenerable: Easy to regenerate using water, dilute acids, alkalis, or low-boiling solvents like methanol or ethanol.
- Robust Mechanical Strength: Ensures a long service life even under rigorous conditions.
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% |
| Specific Surface Area | ≥480 m²/g |
| Adsorption Capacity | ≥45 mg/g |
Applications
The Macroporous Adsorption Resin AB-8 is widely used in the following fields:
- Pharmaceuticals: Purification of alkaloids, glycosides, and other bioactive compounds.
- Food Industry: Extraction of natural pigments, sweeteners, and flavoring agents.
- Environmental Protection: Removal of organic pollutants from wastewater.
- Chemical Manufacturing: Separation of intermediates and by-products.
According to NIST, “The versatility of macroporous resins like AB-8 aligns with the growing demand for sustainable and efficient separation technologies in both industrial and environmental contexts.”
Pretreatment and Regeneration
Pretreatment Process
To prepare the resin for use, follow these steps:
- Soak the resin in 10–20 cm of ethanol for 3–4 hours.
- Drain the solution and repeat the washing until the effluent is clear.
- Rinse with clean water until no ethanol smell remains.
Enhanced Regeneration
If the resin’s adsorption capacity decreases, perform the following:
- Soak in 3–5% hydrochloric acid for 2–4 hours.
- Rinse with 5–7 times the volume of hydrochloric acid solution.
- Soak in 5% sodium hydroxide for 2–4 hours, then rinse thoroughly with water until neutral pH.
Precautions and Storage
- Store the resin at 5–40°C to prevent freezing or mold growth.
- Avoid direct water injection if the resin dries out; instead, rehydrate with ethanol before washing.
- Filter solutions before loading to prevent resin contamination.
- Store the resin in water or saturated saline/ethanol for long-term use.
Company Background
Hebei Lijiang Biotechnology Co., Ltd. is a leading manufacturer of advanced adsorbents and chromatography resins. With a commitment to innovation and quality, the company provides solutions for pharmaceuticals, food, and environmental industries. Their products are designed to meet global standards, ensuring reliability and performance.
For more information about the company, visit Hebei Lijiang Biotechnology Co., Ltd..
Conclusion
The Macroporous Adsorption Resin AB-8 stands out as a versatile and durable solution for separation and purification needs. Its unique properties, combined with the expertise of Hebei Lijiang Biotechnology Co., Ltd., make it a trusted choice for industries requiring precision and efficiency. As highlighted by NIST, “The continued development of such materials is crucial for advancing sustainable industrial practices and environmental protection.”
References
National Institute of Standards and Technology (NIST). (n.d.). Adsorption Resins in Chemical Engineering. Retrieved from https://www.nist.gov/.
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