What is the chemical decolorization method of grease and the role of oleic acid in decolorizing agen

It can be done with decolorizing powder, relying on physical adsorption. You can make the dirty and dark oils cleaner and brighter.

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The traditional decolorizing agents used in the decolorization of edible oil include activated clay and activated carbon. Here are two new methods:

A water-soluble silicate is prepared by decolorizing synthetic silica gel under precise and strict conditions, this adsorbent is also called "hydrogel", which is used in combination with an active clay adsorbent, and the two have complementary effects, because this decolorizing agent has high adsorption activity for phospholipids, trace metals and soaps. Relevant experts recommend: first use this silica gel adsorbent to remove phospholipids, trace metals and soaps in edible oil, and then adsorb and remove chlorophyll and other pigments in the oil through the clay filter layer.

In the study of eliminating the deterioration odor and taste caused by the oxidation of polyunsaturated fatty acids in soybean oil, and delaying the oxidative deterioration rate of soybean oil, an effective new method has been obtained. First of all, the "soybean oil non-polar solvent" mixed oil (for example, with leaching oil solvent), and then the mixed oil is filled with silica gel adsorbent as a column, and the silica gel adsorbs these polar oxidative deterioration products in soybean oil during the diafiltration process of the mixed oil, and the solvent is removed through the mixed oil after adsorption, and the high-quality edible oil is obtained, which not only has good sensory stability, but also prolongs the shelf life of the edible oil.

Traditional decolorizers used in the decolorization of edible oils: activated clay, activated carbon.

At present, the most widely used is the adsorption method, that is, some substances with strong adsorption ability, namely acidic activated clay, bleached clay and activated carbon, are added to grease, and the pigments and other impurities in the oil are adsorbed and removed under heating, such as proteins, mucus, resins and soaps.

Oleic acid is an unsaturated fatty acid that is widely found in animal and vegetable oils and fats. In decolorizing agents, oleic acid is usually used as an auxiliary agent or additive to play several roles:

1.Stability: Oleic acid can improve the stability of the decolorizing agent. It is easy to form stable complexes between unsaturated fatty acids and metal ions, thereby reducing the decomposition and deterioration of decolorizing agents in harsh environments such as high temperature and high humidity.

2.Antioxidant effect: Oleic acid has a certain antioxidant effect. It can interact with the antioxidants in the decolorizer to form a more stable antioxidant system and extend the shelf life of the decolorizer.

3.Synergistic effect: Oleic acid can form a synergistic effect with other decolorizing agent components to improve the decolorization effect.

For example, oleic acid can form stable complexes with some metal ions, so that other decolorizer components can easily penetrate into colored substances and achieve better decolorization results.

4.Improve the dispersion of decolorizing agents: Oleic acid can improve the dispersion of decolorizing agents in water. Due to the certain hydrophilic and hydrophobic properties of oleic acid, it can form a stable complex with other bright substances to improve the dispersion of the decolorizing agent in water, thereby improving the decolorization effect.

It is important to note that the role of oleic acid in decolorizers depends on the specific decolorizer product and use scenario. In practical applications, the appropriate decolorizing agent should be selected according to the specific situation and the product manual should be referred to to ensure the best results.

The methods of how to decolorize edible oil are: sunlight decolorization method, also known as oxidation method, chemical decolorization method, heating method and adsorption method. Traditional decolorizers for the decolorization of edible oils:

Activated clay, activated carbon. At present, the most widely used is the repentant adsorption method, that is, some substances with strong adsorption capacity, namely acidic activated clay, bleached clay and activated carbon, are added to the grease and adsorbed under the condition of heating, and the pigment in the oil and its pre-cavity allergic impurities such as protein, mucus, resin and soap are removed.

The methods of decolorization include: solar decolorization method, also known as oxidation method, chemical decolorization method, chain stove heat method and adsorption method. Traditional decolorizers for the decolorization of edible oils:

Activated clay, activated carbon. At present, the most widely used is the adsorption method, that is, some substances with strong adsorption capacity, namely acidic activated clay, bleached clay and activated carbon, are added to the oil Xunyan lipid, and the pigment and other impurities in the oil are adsorbed and removed under the condition of heating, such as protein, mucus, resin and fertilizer, Changchang soap, etc.

Selected Q&A methods for how to decolorize edible oil are: solar decolorization method, also known as oxidation method, chemical decolorization method, heating method and adsorption method. Traditional decolorizers for the decolorization of edible oils:

Active clay, active carbon. At present, the most widely used is the adsorption method, that is, some substances with strong adsorption energy, namely acid chongzhi, highly active white clay, bleached clay and activated carbon, are added to the oil, and the pigments and other impurities in the oil such as proteins, mucus, resins and soaps are adsorbed and removed under the condition of heating.

Summary. The traditional white oil decolorization treatment method is to add white clay to the white oil, and filter it after heating and stirring, but this method has a trace amount of white clay dissolved in the white oil and is difficult to remove, in addition, the oily waste soil produced is difficult to treat, and it is easy to cause pollution.

Nanjing Hongyi ceramic nanofiltration membrane adopts ceramic nanofiltration membrane refining technology for direct decolorization, which can be continuously produced, improve product quality and production efficiency, and reduce environmental pollution. This technology is the mainstream technology for white oil decolorization in the future.

What are the existing industrial white oil decolorization technologies? My industrial oil is a little red, what is the best medicine to use to achieve the decolorization effect.

The traditional white oil decolorization treatment method is to add white clay to the white oil, and filter it after the heated agitator is mixed loosely, but this method has a trace amount of white shouxin's soil dissolved in the white oil and is difficult to remove, in addition, the oily waste soil produced is difficult to treat, and it is easy to cause pollution. Nanjing Tando Hongyi ceramic nanofiltration membrane adopts ceramic nanofiltration membrane refining technology for direct decolorization, which can be continuously produced, improve product quality and production efficiency, and reduce environmental pollution. This technology is the mainstream technology for white oil decolorization in the future.

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