Food Grade Silica Adsorbent for Edible Oil Refining

Premium Phosphorus Scavenger & Impurity Remover

Food-grade silicon dioxide is a high-performance adsorbent engineered specifically for edible oil processing. It effectively captures phospholipids, saponins, and trace metal contaminants that cause oil instability, smoke formation, and premature rancidity. Its optimized particle size distribution delivers superior filtration efficiency, and when used in combination with activated clay and diatomaceous earth, it enhances decolorization while minimizing oil loss. This dust-free formulation enables water-free degumming, reducing waste generation and wastewater discharge while preserving the natural flavor and nutritional profile of your oils.

Our specialized edible oil silica addresses three critical industry challenges: excessive phospholipids, elevated free fatty acids, and residual metal ions. It is suitable for processing soybean oil, rapeseed oil, peanut oil, palm oil, and all other plant-based oils, and complies with GB 25576-2020, FDA, and EU food safety regulations.

1.2 Applications

• Edible Oil Refining: Degumming and dephosphorization of rapeseed oil, tea seed oil, peanut oil, soybean oil, and palm oil

• Beverage Processing: Impurity removal, color clarification, and taste improvement for juices and drinks

• Animal Fat Processing: Degumming and dephosphorization of beef tallow, mutton fat, lard, and chicken fat

• Brewing Industry: Effective removal of polyphenols and proteins to enhance beer clarity and stability without compromising flavor

1.3 Key Performance Advantages

• Tailored specific surface area and pore structure for targeted adsorption of oil impurities

• Enhanced affinity for polar contaminants, improving both adsorption and filtration performance

• Reduces free fatty acid content, improves oil color, and prevents product thickening

• Narrow particle size distribution ensures excellent filtration rates and permeability

Technical Specifications

Our ZLSIL-58GZ1-Z3 grade features 99.0%+ purity with a three-dimensional mesoporous structure precisely matched to the molecular size of phospholipids and free fatty acids. It provides stable adsorption capacity without chemical reaction with oil components, maintains performance at 180-220°C refining temperatures, and has heavy metal residues well below international limits.

Proven Application Results

Our plant oil silica delivers deep purification and quality upgrading through precise pore design and exceptional adsorption performance:

1. High-Efficiency Degumming: Reduces phospholipid content from 1.2% to <0.1% in high-phosphorus oils like soybean and rapeseed, eliminating sedimentation issues and minimizing oil loss during filtration.

2. Targeted Deacidification: Lowers acid values from 2.0 mg KOH/g to <0.8 mg KOH/g in palm and peanut oils, meeting Grade I edible oil standards and extending shelf life to over 12 months.

3. Dual Decontamination & Deodorization: Removes iron and copper ions to stop oxidation at the source, while neutralizing aldehydes and ketones that cause off-flavors. It completely eliminates "raw oil odor" in rapeseed oil while preserving natural aromas.

Case Study: A leading Chinese edible oil manufacturer replaced imported degumming agents with our ZLSIL-58GZ1-Z3. Refining efficiency improved by 15%, products achieved EU export certification, and export volumes increased by 20% year-on-year.

Usage Instructions

Add 0.2-0.5% adsorbent to preheated oil (60-90°C) and mix for 60-90 minutes. After adsorption is complete, remove the silica along with impurities using standard plate-and-frame filtration.

Manufacturing Advantages

Zhongqi (Guangdong) Silicon Materials Co., Ltd. is a national high-tech enterprise with over 20 years of silica expertise. We hold 17 patents, operate a GMP-certified production base, and maintain a comprehensive 26-step quality control system from raw materials to finished products. Our facilities are certified to ISO 22000 food safety management standards.

Packaging & Logistics

• Standard: 20/25kg composite film valve bags with outer PE waterproof lining

• Storage: Cool, dry environment; 24-month shelf life

• Shipping: Non-hazardous material, supports global transportation

• Labeling: Complies with all food additive regulations; custom labeling available

Frequently Asked Questions

Q: Why do dosage rates vary by oil type?  

A: Dosage is based on initial phospholipid content and acid value. Soybean oil (1.0-1.5% phospholipids) requires 0.3-0.6%, while palm oil (0.3-0.5% phospholipids) only needs 0.3-0.5%.

Q: How is the adsorbent removed from the oil?  

A: It is removed during standard plate-and-frame filtration with no additional processes required. Residual silica in finished oil is ≤5ppm, meeting all food safety standards.

Q: Does this affect the nutritional value of edible oil?  

A: No. It only adsorbs impurities, with <2% adsorption of beneficial unsaturated fatty acids (linoleic acid, oleic acid) and vitamin E.

Q: Can this replace imported silica products?  

A: Yes. Our adsorption performance matches international brands at 20-30% lower cost, with proven stable performance in numerous oil refineries.

Certifications & Qualifications

• FSSC 22000, ISO 22000:2018, ISO 9001:2015

• SHC Halal, OU Kosher

• FDA Attestation, FAMI-QS, SEDEX

• Food and Feed Additive Production Licenses

• National High-Tech Enterprise

• Guangzhou Specialized, Refined, Unique & Innovative Enterprise

• 17 State Intellectual Property Office Patents