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Bentonite clay, is a kind of clay mineral with montmorillonite as main component,has property of good cohesiveness, expansibility, adsorption, plasticity, dispersion, lubricity, cation exchange.Its chemical composition is quite stable,so it is crowned as "universal stone". So after acid and activated, bentonite become activated bleaching clay. Our activated bleaching clay both has strong absorption and decoloring ability.
Bentonite is one of most popular clays and comes from naturally occurring volcanic ash sediments here in the China. Bentonite clay has been traditionally used to assist in mineral deficiencies, and to help bind toxins making them more soluble. Bentonite, also referred to as Montmorillonite, is one of the most effective and powerful healing clays.
Bentonite has the great expansibility under water and a good colloidal nature properties.It can increase the viscosity of suspension in the drilling mud when used.Increasing the lubrication of drilling and cleaning produces in the process of drilling cuttings, it is widely used to complex geological structure formation drilling construction, to prevent hole-accidents. The products are known for its good performance, strong water hydration expansion, big cation exchange capacity and high made pulp rate.
1).Used for oil and gas well drillig and civil-engineering,etc.
2).Used in the water mud,which has good lubricity and suspension property, also can be used to avoid rock-falling, collaps, and function in repairing the leakage.
3).Used as viscosifier and filtration control agent for water based Mud Systems.
4).Used for controlling borehole stability.
5).Bentonite drilling mud is widely used in construction, coating, fireproof, waterproof, heat preservation and special coating etc.
| PHYSICAL PROPERTIES | |
| Color | Gray to Tan |
| Density (g/cm3) | 2.60 |
| Viscosity - cps @ 6.25Fann | 8 - 30 |
| Swelling Power (min) | 24 mls |
| Gel Formation (max) | 2 mls |
| % Thru 325 Mesh (wet) | 99.00 |
| % Thru 200 Mesh (wet) | 99.75 |
| CHEMICAL PROPERTIES | |
| SiO2 | 69.56 |
| Al2O3 | 20.69 |
| Na2O | 2.43 |
| MgO | 2.70 |
| CaO | 1.30 |
| Fe2O3 | 4.85 |
| K2O | 0.30 |
| PH | 8.5-10.5 |
| Moisture | 8.0 |
| AS | 5ppm |
| Pb | 40ppm |
| LOI | 9.80 |
Bentonite application
Drilling bentonite: Bentonite is the main material of the preparation of slurry. It has the effection of protecting sidewall, upward returing cuttings, cooling and lubricating the bits.
Foundry bentonite: Bentonite is used in agglomerant and lithium bentonite is used in quick-drying coating.
Iron core pelletizing bentonite: It can improve the production capacity by adding 1-2% sodium bentonite in the refined iron-mineral powders. It is widely used in steel mills.
Coating bentonite:Bentonite is used as suspending agent in various coating. It can improve the suspension, adhesion, brushing property and water resistance of the coating.
Animal feed bentonite: Bentonite can be used as additives of animal feed because it contains a lot of microelements such as Fe, Cu, Zn and Mn and it's non-toxic and fine powder.
Fertilizer bentonite: It can improve the fertilizer effection and improve the soil.
Building bentonite: Bentonite has good effection of anti-leakage in construction.
Rubber bentonite: Bentonite has better swelling rate,high water absorption.
