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상세 정보 |
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| 모습: | 노란색 불투명 구형 입자 | 입자 크기 범위(mm): | 0.315-1.25 |
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| 배송 중량(g/ml): | 0.72-0.87 | ||
| 강조하다: | Macroporous Enrichment Resin,Metallic Gallium ions Enrichment resin |
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제품 설명
The ACD-800B is a large-pore chelating resin made of polystyrene and acrylonitrile copolymer. Its core lies in attaching functional groups with specific affinity and selectivity for gallium ions (Ga3+) onto the polymer backbone. Its working principle is not simple ion exchange but rather coordination chemistry (chelation), and it is mainly used for accurately enriching metal gallium ions from the alumina mother liquor prepared by the Bayer process at a low cost, with low energy consumption and high efficiency.
Product Specifications
| Appearance | yellow opaque spherical particles |
|---|---|
| Particle size range (mm) | 0.315-1.25 |
| Shipping weight (g/ml) | 0.72-0.87 |
| Water content (%) | 60-70 |
| Sphericity after attrition (%) ≥ | 90 |
| Ga absorption capacity (g/L) ≥ | 3.5 |
Water Inflow Conditions
- Suspended solids ≤ 1 ppm
- Suspended oil ≤ 1 ppm
Usage Methods
Resin Pretreatment (Laboratory Method)
- Install resin column (effective size: φ25mm * 300mm), transfer measured resin volume soaked in pure water into column
- Resin filling volume: 25-30 mL (1/4 to 1/3 of resin column)
- Activate resin: rinse with pure water until effluent is clear, then drain; immerse in 5.0 mol/L NaOH solution
- Maintain 2-3 cm liquid level of NaOH solution above resin layer
- Activation completes after 24 hours (resin volume expands to approximately 1.3 times)
Resin Adsorption (Laboratory Method)
- Operating flow rate: 1-5 BV/h
- Operating temperature: ≤ 40℃
Precautions
- Avoid bubble generation in resin bed layer to prevent cross-flow and maintain optimal performance
- Prevent bacterial contamination by thoroughly cleaning resin with clean water after use to remove accumulated impurities
Regeneration Steps
Pressurization: Remove remaining material in resin column by pressure
Water washing: Wash resin with 2-4BV pure water at 2BV/h rate
Distillation regeneration: Perform using 4-6BV of 5% H₂SO₄ solution at 1-1.5BV/h rate
Acid washing water: Wash with 2-4BV pure water at 2BV/h flow rate
Activate resin: Activate with 2BV of 5.0 mol/L NaOH solution at 2BV/h rate, then proceed to next adsorption cycle
Resin Storage
- Maintain proper moisture content during storage; prevent resin from drying out
- If resin becomes dry, soak in saturated salt water for gradual expansion, then slowly dilute salt concentration
- Prevent freezing or overheating; optimal storage temperature: 5-40℃
- For temperatures below 5℃, use salt water soaking for freeze protection
- For temperatures above 40℃, store indoors in dark location
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