Bentonite Desiccant
Bentonite is a versatile clay mineral known for its high absorbency and ability to form gel-like suspensions, making it valuable in various industries.
- CAS Number: 1302-78-9
- EINECS NO.: 215-108-5
- Molecular Formula: Al2H2O6Si
- Purity (%): Varies depending on the grade and application, typically ranging from 80% to 95% or higher.
- Appearance: Fine powder or granules with a range of colors, including white, purple, yellow, gray, or green.
- Packing: Available in various packaging options, such as bags, sacks, or bulk shipments.
What is Bentonite?
Bentonite is a type of clay mineral composed primarily of montmorillonite, which is a member of the smectite group of minerals. It is formed from the weathering of volcanic ash and is commonly found in volcanic regions. Bentonite has unique properties, including high swelling capacity and excellent absorbent capabilities. When mixed with water, it forms a gel-like substance and exhibits thixotropic behavior, meaning it becomes less viscous when agitated and returns to a gel-like state when left undisturbed. Due to these characteristics, Bentonite finds a wide range of applications in various industries, such as drilling and construction, foundry, animal feed, environmental remediation, and cosmetics.
Bentonite Uses
Drilling Fluids: It is widely used in the oil and gas industry as a key component of drilling fluids to lubricate and cool the drill bit, remove cuttings, and stabilize boreholes.
Foundry Sands: Bentonite is utilized in foundry molds and cores to improve their strength, casting precision, and resistance to high temperatures.
Cat Litter: Bentonite-based cat litter is popular due to its exceptional clumping and odor-absorbing properties.
Civil Engineering: It finds application in civil engineering for sealing and waterproofing purposes in construction, such as lining ponds, landfills, and canals.
Environmental Remediation: Bentonite is used in environmental remediation to seal and control pollution in landfills and contaminated sites.
Iron Ore Pelletizing: It is added to iron ore concentrate to improve pellet green strength and prevent sticking during the pelletization process.
Binder in Pelletizing: Bentonite is used as a binder in the pelletizing process of various materials, such as fertilizers and detergents.
Wine Clarification: It is employed in winemaking to remove protein haze and clarify wine.
Bentonite Structure
he structure of Bentonite is primarily composed of a clay mineral called montmorillonite, which belongs to the smectite group of minerals. Montmorillonite is a 2:1 layered aluminosilicate, meaning it consists of two silica tetrahedral layers sandwiched between an octahedral layer of aluminum hydroxide.
The individual layers of montmorillonite are held together by weak Van der Waals forces and are negatively charged due to isomorphous substitution of aluminum for silicon in the tetrahedral layers, leading to the presence of exchangeable cations within the structure.
The price of Bentonite can vary depending on several factors, including the grade and purity of the Bentonite, the quantity purchased, the supplier or distributor, and the specific application requirements. Additionally, market conditions and demand can also influence the price.
(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2·nH2O
In this formula, the cations Na+ and Ca2+ can be present in the interlayer spaces, and the cations Al3+ and Mg2+ can substitute for each other in the octahedral layers. The Si4O10 represents the silica tetrahedral layers, and OH represents the hydroxide ions in the octahedral layers.
The variable “n” in the formula represents the number of water molecules associated with the Bentonite structure, as Bentonite is a hydrated clay mineral and can contain varying amounts of water depending on its moisture content.
Bentonite Suppliers
As Bentonite Suppliers, providing exemplary services is essential to meet the needs of our customers and establish long-lasting partnerships. Offer a wide range of high-quality Bentonite products, including various grades and particle sizes, to cater to specific applications across different industries.
Our products include purifying agents, flocculants, desiccants, scale inhibitors, chelating agents, disinfectants, corrosion inhibitors etc.
- We offer expedited shipping options, ensuring that our products can reach the Chinese port within seven days.
- Customer satisfaction is our priority, and we provide a hassle-free return policy for both products and services.
- Our company has successfully undergone the rigorous SGS field certification inspection.
