Food-grade silica serves as an adsorbent and phosphorus scavenger in edible oils, effectively capturing phospholipids, saponins, and trace metal elements to enhance oil stability. Its optimized particle size distribution improves filtration efficiency. When combined with activated clay and diatomite, it boosts decolorization performance while minimizing crude oil loss, improving product quality, and extending shelf life. The non-dust-forming application enables water-free degumming, reducing waste residue and wastewater discharge while preserving the original flavor profile of the product.
Silica dioxide, a specialized adsorbent for vegetable oils, is a functional material developed for processing scenarios involving soybean oil, rapeseed oil, peanut oil, palm oil, and other plant-based oils. It addresses three key industry pain points caused by excessive phospholipids, excess free fatty acids, and residual metal ions in oils, which lead to issues like smoke production, rancidity, and short shelf life. The product complies with standards including GB 25576-2020, FDA, and EU regulations.

1.2 Scope of application
Refining and dephosphating of vegetable oils such as rapeseed oil, tea oil and peanut oil.
In the industry of juice, beverage and other industries, it can be used to remove impurities, improve color and taste, meet the requirements of food grade standards.
De-gumming and de-phosphating of animal oil such as beef oil, mutton oil, lard and chicken oil.
In the process of beer brewing, polyphenols and proteins can be effectively removed to improve clarity and stability, while retaining the flavor of beer.

1.3 Performance advantages

The specific specific surface and specific pore structure of the product make it have excellent adsorption performance for specific impurities.
Improve the affinity of the product to polar impurities, further improve the adsorption performance of the product, improve the filtration performance, and improve the stability of production and use.
Reduce the content of free fatty acids, improve the color of oil, improve the thickening of products.
The concentrated particle size distribution makes it have excellent filtration and permeability.

Table parameters

Based on 99.5% ultra-high purity, the three-dimensional mesh mesoporous structure can accurately match the molecular size of phospholipid and free fatty acid in vegetable oil, with stable adsorption capacity and no chemical reaction with oil components; heavy metal residue is far below international limits, and performance does not decay at 180-220℃ oil refining temperature.

Application description

Relying on the precise aperture design and excellent high adsorption performance, zhongqi plant oil special adsorbent silica can achieve the core goals of deep impurity removal and quality upgrading in the process of vegetable oil refining. The specific application value and practical results are as follows:

1. Efficient De-gumming Treatment: For oils with high phospholipid content such as soybean oil and rapeseed oil, precise addition ratios (soybean oil 0.3%-0.6%, rapeseed oil 0.2%-0.5%) are controlled to utilize their unique mesoporous structure for efficient capture of colloidal substances like lecithin and cephalin. The phospholipid content in processed oils can be reduced from 1.2% to below 0.1%, not only completely avoiding sedimentation issues during subsequent processing but also minimizing oil loss during filtration, thereby improving production yield.

2. Targeted Deacidification and Acid Value Reduction: This process precisely adsorbs free fatty acids in palm oil and peanut oil, effectively lowering the acid value from 2.0 mg KOH/g to below 0.8 mg KOH/g – fully meeting China's Grade I edible oil standards. Furthermore, it significantly reduces oxidative spoilage risks, extending shelf life to over 12 months. This innovation helps enterprises minimize inventory losses and expand sales cycles while maintaining product quality.

3. Dual Optimization of Decontamination and Odor Removal: This dual-process system works through two key mechanisms. First, it selectively adsorbs heavy metal ions like iron and copper from oils, effectively halting oxidation at its source. Second, it simultaneously neutralizes odorous compounds such as aldehydes and ketones produced during oxidation, achieving deep purification of the oil's flavor profile. Taking rapeseed oil processing as an example, this method completely eliminates the "raw oil odor" while preserving the oil's natural aroma intact, thereby enhancing the product's sensory quality.

4.Case Study: A leading domestic vegetable oil manufacturer successfully replaced traditional degumming agents with our product (Model ZLSIL-58GZ1). Post-application, the soybean oil refining efficiency improved by 15%, while the refined products obtained EU export certification. Export volumes surged by 20% year-on-year, achieving triple breakthroughs in efficiency, quality, and market performance.

usage method 

The temperature is controlled at 60-90℃, and the adsorbent of 0.2%-0.5% is mixed with the oil to be treated for 60-90 minutes, so that the pollutants are adsorbed on the surface of the particles. Once the pollutants are combined with the surface of the adsorbent particles, the mixture can be filtered to remove impurities and adsorbent.

Factory advantages

Zhongqi Guangdong Silicon Materials Co., Ltd., a national high-tech enterprise and provincial-level specialized, refined, unique, and innovative enterprise, has been dedicated to the industry for over two decades. The company holds 17 patented technologies and operates a GMP-certified production base. Equipped with advanced testing instruments including atomic fluorescence spectrometers and laser particle analyzers, it has established a comprehensive 26-step quality control system covering raw materials to finished products. The company has obtained ISO22000 certification for food safety management systems.

Packing for shipment

•Standard packaging: 20/25kg valve bag.

•Waterproof design: the packaging is a composite film valve bag + an outer PE bag.

•Storage and transportation requirements: store in cool and dry environment, shelf life of 24 months; non-hazardous chemicals, support global shipping/carrying.

•Labeling standards: each package shall be marked with legal information such as food additives, added limits and production license number, or the label head shall be posted according to customer requirements.

Frequently Asked Questions

Q: Why is the amount different for different vegetable oils?
A: Because the phospholipid content and acid value base value of different vegetable oils are different, for example, the phospholipid content of soybean oil is usually 1.0%-1.5%, so a higher amount (0.3%-0.6%) is needed to ensure complete degumming; the phospholipid content of palm oil is 0.3%-0.5%, so the amount can be reduced to 0.3%-0.5%.

Q: How to separate the adsorbent from the oil after use?
A: There is no need for additional complex process. After adsorption, it is removed together with the plate and frame filtration process of vegetable oil refining, and the residue of filter residue is less than or equal to 5ppm, which meets the food safety standard.

Q: Will the product affect the nutritional content of vegetable oil?

A: No. The product only adsorbs phospholipids, free fatty acids, metal ions and other impurities, and the adsorption rate of unsaturated fatty acids (such as linoleic acid, oleic acid) and vitamin E in vegetable oil is less than 2%, completely retaining the original nutritional value of oil.

Q: Can it replace similar imported products?
A: Yes. The adsorption performance of the product (phospholipid removal rate and acid value reduction) is the same as that of international brands, and the bulk purchase cost is 20%-30% lower than that of imported products. It has been replaced by many oil plants and the processing effect is stable.

Qualifications and Honors

•FSSC22000
•ISO22000：2018
•ISO9001：2015
•SHC HALAL
•OU  KOSHER
•FDA attestation 
•FAMI-QS
•SEDEX
•Food additive production license
•Feed additive production license
•National high-tech enterprise
•Specialized, refined and new enterprises in Guangzhou
•17 patents from the State Intellectual Property Office