2024 Author: Sierra Becker | [email protected]. Last modified: 2024-02-26 03:46
Bentonite clay is a mineral of clay origin that swells when exposed to water. It is formed as a result of the decomposition of volcanic lava and ash. Depending on the predominance of one or another chemical in the composition, its color can be yellow, brown, gray, green or blue.
Bentonite clay has the following characteristics:
- plasticity - interacting with water, clay turns into a mass capable of taking any shape under slight pressure;
- swelling - mixing with water, it increases in size;
- sorption properties - absorption of particles, molecules, ions from the environment and keeping them on its surface;
- refractoriness - does not melt at very high temperatures;
- caking - when fired, it turns into a stone-like body.
Since ancient times, bentonite clays have been used in medicine and industry. As a rich source of various trace elements, they are excellent environmentally friendly dietary supplements. Clay solution normalizes the work of the gastrointestinal tract, acid-base balance in the human body and animals. Normalize the work of the cardiovascular system. Has analgesic, anti-inflammatory, radioprotective properties.
Bentonite clay is found in many cosmetic preparations. It is great for problematic skin. The mask with it removes acne, skin irritation, relieves inflammation from insect bites. A compress of this clay is recommended for burns.
In industry, this substance is never used in its pure form, it is mixed with other chemical components that enhance one or another property of clay. When bentonite gets into a liquid medium, it turns into flakes and settles to the bottom, capturing fine particles. As a sorbent, bentonite clay is used to clarify juices, musts and wines, as well as to soften water and purify oils.
Its plastic properties help to obtain fine porcelain, building, radio and electric ceramics.
Currently, bentonite clay is widely used in the drilling of gas, oil and water wells. Its powder is used in the manufacture of drilling fluids. It does not contain polymeric fillers and is compatible with all components. This significantly reduces the cost of the mud and the time to drill the well.
Bentonite clay is also used in the construction of the foundation of buildings, as well as underground structures. Due to its moisture-absorbing properties, it is an ideal waterproofing. The same quality of clay is used to create artificial reservoirs. By filling the bottom with it, builders significantly reduce water loss. Today, bentonite clay is used to produce not only powder, but also waterproofing mats.
Materials based on bentonite clays are often used in the metallurgical industry. It uses its high thermal stability and astringent properties. Clay is used to make molds and tooling. It is used to form iron ore pellets.
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