Bentonite 4 high value-added products

Bentonite 4 high value-added products

At present, there are four categories of bentonite products with high added value, which should be paid attention to.

1.montmorillonite

Only pure montmorillonite can fully reflect its excellent properties, which is the need of the development of montmorillonite.

Montmorillonite can be purified from natural bentonite that meets certain conditions. Montmorillonite has gone beyond the category of bentonite and is used as an independent variety in high-tech fields such as medicine and feed.

The definition of montmorillonite products in China is not unified, which often leads to ambiguity of montmorillonite products. At present, there are two definitions of montmorillonite products. One is the definition of montmorillonite products in non-metallic mining industry: if the content of montmorillonite in clay ore is greater than 80%, it is called montmorillonite, such as montmorillonite desiccant. Its product content is qualitative and quantitative by means of blue absorption, and the grade is nothing more than high-purity bentonite; The other is the definition of montmorillonite in the field of scientific research. Its product content is mostly qualitative and quantitative by XRD and other methods. This is montmorillonite in the real sense, which can meet the requirements of medicine, cosmetics, food and other industries for montmorillonite products. The montmorillonite described in this paper is the montmorillonite product at this level [2].

Montmorillonite can be used in medicine [3].

Montmorillonite (Smectite) has been collected in Pharmacopoeia of the United States Pharmacopoeia, British Pharmacopoeia and European Pharmacopoeia. It has no odor, slight soil odor and no irritation. It has no influence on the nervous, respiratory and cardiovascular systems. It has good adsorption capacity, cation exchange capacity and water swelling capacity. It is also known as Escherichia coli, Vibrio cholerae, Campylobacter jejuni, and so on. Staphylococcus aureus, rotavirus and bile salt have good adsorption, fixation of bacterial toxins and rapid antidiarrheal. Therefore, their preparations are widely used in clinic. Montmorillonite API is not only used in preparations, but also used in drug synthesis and sustained-release preparations as excipients.

Montmorillonite can be used in veterinary medicine and animal health care [4-10]. Montmorillonite is the only variety that has evolved from human medicine to feed additive. It has excellent effect on feed mildew removal and is safe and green. It is the preferred mycotoxin adsorbent in the world.

The patented product nano montmorillonite huchangbao TM is a green health care product specially developed for the prevention and treatment of animal diarrhea, dysentery and other diseases. It can treat diarrhea, remove mold and heavy metals in feed, has no toxic and side effects, and has the characteristics of "traditional Chinese medicine composition, western medicine effect"

Montmorillonite (Smectite) has been collected in Pharmacopoeia of the United States Pharmacopoeia, British Pharmacopoeia and European Pharmacopoeia. It has no odor, slight soil odor and no irritation. It has no influence on the nervous, respiratory and cardiovascular systems. It has good adsorption capacity, cation exchange capacity and water swelling capacity. It is also known as Escherichia coli, Vibrio cholerae, Campylobacter jejuni, and so on. Staphylococcus aureus, rotavirus and bile salt have good adsorption, fixation of bacterial toxins and rapid antidiarrheal. Therefore, their preparations are widely used in clinic. Montmorillonite API is not only used in preparations, but also used in drug synthesis and sustained-release preparations as excipients.

Montmorillonite can be used in veterinary medicine and animal health care [4-10]. Montmorillonite is the only variety that has evolved from human medicine to feed additive. It has excellent effect on feed mildew removal and is safe and green. It is the preferred mycotoxin adsorbent in the world.

The patented product nano montmorillonite huchangbao TM is a green health care product specially developed for the prevention and treatment of animal diarrhea, dysentery and other diseases. It can treat diarrhea, remove mold and heavy metals in feed, has no toxic and side effects, and has the characteristics of "traditional Chinese medicine composition, western medicine effect"


2.Organic bentonite

Organobentonite refers to a hydrophobic and lipophilic bentonite organic complex formed by organic cations or their compounds replacing exchangeable cations or adsorbed water between montmorillonite layers, resulting in the loss or partial loss of adsorbed water. It has good colloidal dispersion, thickening, adhesion, thixotropy and suspension stability in organic solvents, and is suitable for paints, inks High temperature lubricating grease and cosmetics are used as thickeners and are suitable for oil drilling fluid preparation, precision casting coatings, sealing putty and glass fiber processing. They are favored by bentonite enterprises and have an increasing production scale [11].



3.white bentonite

There is no unified standard on what is white bentonite. Due to different uses, the requirements for its whiteness are also inconsistent. However, it is certain that the whiteness of building materials should be at least more than 80 [12]. At the same time, the whiteness in aqueous medium should be pure white and should not be mixed with red and green.

White bentonite benefits from its whiteness and is very popular in daily chemical products, ceramics, papermaking, coatings and many other aspects.

Daily chemical products: white bentonite is used as fabric softener and softener in soap, washing powder and detergent to absorb dissolved impurities, prevent crusting and residue accumulation on the fabric surface and reduce the deposition of zeolite on the fabric; It can keep the dirt and other particles in the fluid medium suspended; Adsorb oil and other impurities, and even coagulate bacteria. Gelatin in toothpaste and cosmetics can replace toothpaste imported abroad, thickening agent and thixotropic agent.

Ceramics: white bentonite is used as plastic filler in ceramics, especially in products with high whiteness after sintering. Its rheological and expandable properties make the ceramic plaster plastic and increase the strength. At the same time, it stabilizes the suspension of water in the paste. At the same time, its dry adhesion provides a high bonding strength and bending resistance for the roasted final product. In ceramic glaze, white bentonite is also used as plasticizer and thickener to provide strength, plasticity and high adhesion for glaze and support, which is conducive to ball milling.

Papermaking: in the papermaking industry, white bentonite can be used as multifunctional white mineral filler.

Coating: as viscosity regulator and white mineral filler in the coating, it can partially or completely replace titanium dioxide.

Starch modifier: better storage stability and service performance.

In addition, white bentonite can also be used in high-grade adhesives, polymers and paints.

4.granular clay

Granular clay is chemically treated with activated clay as the main raw material. Its appearance is amorphous small particles. It has higher specific surface area and high adsorption capacity than activated clay. It is widely used in aromatics purification in petrochemical industry, aviation kerosene refining, mineral oil, animal and vegetable oil, wax making and decolorization and refining of organic liquids. It is also used in lubricating oil, base oil Refining of diesel oil and other oil products to remove residual olefins, colloids, asphalt, basic nitrides and other impurities in the oil products.

Granular clay can also be used as moisture desiccant, internal medicine alkali antidote, vitamin A and B adsorbent, lubricating oil contact agent, gasoline gas phase refining agent, etc. it can also be used as raw material of medium temperature polymerization catalyst and high temperature polymerization agent.

At present, granular clay, which is non-toxic, non entrained, low oil absorption rate, can be used for decolorization and refining of edible oil and will not cause discoloration of reaction medium in petroleum catalysis, is a hot spot of demand.