Welcome to Shandong Zhonglian Chemical Co., Ltd. Equity Code:880747
29
2026
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Food-Grade Silica Dioxide Adsorbent: Intro, Application & Specs
Routine dosage: 0.2%-0.5% of total formula. Note: Conduct pre-use tests to confirm the optimal dosage based on actual formula, oil type, gel content and compound ratio.
Food-grade silica dioxide adsorbent (also called dephosphorization agent), compliant with GB 25576-2020, is a stable food additive. It adsorbs impurities like phospholipids, saponins and trace metals in edible oils, polyphenols & proteins in beer, and foreign matter in fruit juices; improves powder fluidity and anti-caking performance, and boosts decolorization efficiency when compounded with activated clay/diatomite while cutting crude oil loss. It enables water-free degumming, reducing waste discharge with dust-free operation. Recommended addition: 0.2%-0.5%, to be used at 60-110℃ with 60-90 minutes of stirring and subsequent filtration. Stored in dry, ventilated cool conditions, shelf life ≤24 months. Widely applied in animal/vegetable oil refining, beer brewing, and fruit juice & beverage processing.
Core Functions
① Adsorption of target impurities in oils, beer and beverages; ② Enhanced powder fluidity and product stability/clarity; ③ Synergistic decolorization with clay/diatomite, extended oil shelf life; ④ Water-free degumming, eco-friendly and dust-free.
Application Method
Control temperature at 60-110℃, add at 0.2%-0.5% (compound with clay for decolorization); stir with the target product for 60-90 minutes, then filter to remove impurities and the adsorbent.
Application Scope
Animal/vegetable oil refining (degumming, dephosphorization, desaponification), beer brewing (clarity and stability improvement), fruit juice & beverage processing (impurity removal, flavor and color optimization).
Performance Advantages
Excellent adsorption for polar impurities; concentrated particle size, strong filtration and permeability; reduced free fatty acids, improved oil color and product consistency; good powder compatibility (anti-caking); water-free degumming, eco-friendly and energy-saving.
Technical Specifications (GB 25576-2020)
| Item | Unit | Index | Remarks |
| SiO₂ (dry basis) | % | ≥96 | Core purity index |
| Loss on drying (105℃) | % | ≤7 | Moisture control |
| Water-soluble matter | % | ≤4.0 | Impurity limit |
| pH (5% aq. suspension) | - | 3.0~8.0 | Acidity-alkalinity range |
| Avg. particle size (D50) | μm | 10~30 | Particle size core index |
| Carbon content/surface treatment | - | N/A | No mandatory requirements |
| Other indices | - | National Standard | Food safety compliant |
Recommended Addition
Routine dosage: 0.2%-0.5% of total formula. Note: Conduct pre-use tests to confirm the optimal dosage based on actual formula, oil type, gel content and compound ratio.
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