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Discover SORBSIL® R92: High-Performance Silica Hydrogel for Edible Oil Refining & Biofuel Purification
创建于05.22
SORBSIL® R92 is a high-performance silica hydrogel product developed by PQ Corporation (USA), primarily used for the purification of edible oils and biofuel feedstocks. Below is a detailed description of the product's specifications and application areas:
Product Characteristics and Technical Parameters
1. Chemical Composition
SORBSIL® R92 consists mainly of silica hydrogel with citric acid, belonging to synthetic amorphous silica. Its chemical structure contains numerous micro-pores, forming a high-specific-surface-area adsorption network that effectively captures polar impurities.
2. Physical Properties
- Particle Size: Average particle size of approximately 18.2 microns, with uniform distribution, ensuring good flowability and filtration performance.
- pH Value: ~2.2. The low pH aids in hydrating and removing stubborn impurities such as non-hydratable phospholipids.
- Adsorption Capacity: Exhibits high affinity for phospholipids, trace metals (e.g., iron, copper), and residual soap, with significantly higher adsorption capacity than traditional bleaching clays.
- Low Dust: Special treatment reduces dust generation, enhancing operational safety and environmental friendliness.
Core Application Areas
1. Edible Oil Refining
- Degumming and Decolorization: SORBSIL® R92 removes phospholipids, gums, and pigments from crude oils through adsorption, improving oil transparency and quality. Its high porosity and low pH make it particularly suitable for treating oils with non-hydratable phospholipids, reducing the burden on subsequent refining steps.
- Metal Removal: Effectively adsorbs trace metals (e.g., iron, copper) to prevent oil oxidation and extend shelf life.
- Alternative to Traditional Adsorbents: Can partially or fully replace bleaching clays, reducing waste clay disposal and lowering production costs and environmental impact.
Technical Advantages
1. High-Efficiency Adsorption
The three-dimensional network structure of silica hydrogel provides a high specific surface area (specific values refer to PQ technical documents). Combined with the synergistic effect of citric acid, its adsorption efficiency for polar contaminants is significantly higher than traditional adsorbents.
2. Superior Filtration Performance
Narrow particle size distribution and high permeability (high Darcy value) ensure fast filtration and reduce filter cake blockage, improving production efficiency.
3. Environmental Friendliness
Low-dust design minimizes operational risks and reduces waste clay generation, aligning with sustainability requirements.
Usage Considerations
- Storage Conditions: Store in a dry environment with sealed packaging to avoid moisture absorption affecting adsorption performance.
- Operation Recommendations: Precise dosing via metering equipment is recommended to ensure uniform dispersion in the oil phase.
- Safety Protection: Although low in toxicity, avoid direct inhalation of dust. Wear protective masks and gloves during operation (specific safety information refer to PQ’s MSDS).
Comparison with Other Models
Within the SORBSIL® series, R92 and models like R40F are both designed for edible oil refining, but R92’s lower pH (due to citric acid) makes it more suitable for oils with high phospholipid content. R40F may offer different adsorption selectivity in specific scenarios, requiring selection based on feedstock characteristics.
For further technical details or customized solutions, please contact PQ Corporation or its authorized distributors directly.
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