Bentonite application in various industries
Bentonite is a non-metallic mineral with montmorillonite as the main mineral component. It is widely used because of its water absorption, swelling, cation exchange, thixotropic, cohesive, adsorptive, thickening and lubricity properties. In various industrial sectors.
Foreign countries have applied in more than 100 departments in 24 fields of industrial and agricultural production, and there are more than 300 products, so people call it “universal soil”.
Application field | The main purpose | Type of bentonite used |
Casting | Sand binder | Sodium bentonite or calcium and magnesium bentonite |
Adhesive sand binder, surface stabilizer | Organic bentonite | |
metallurgy | Iron concentrate pellet binder | Sodium bentonite |
Drilling mud | Formulate drilling mud suspensions with high rheological and thixotropic properties | Sodium, calcium, magnesium bentonite Organic bentonite |
food | Decolorization and purification of animal and vegetable oils Clarification of wine and juice, stabilization of beer, saccharification, sugar purification | Fuller's earth (acid activated soil) Sodium bentonite (activated or natural) Other bentonite |
oil | Refining, decolorization and purification of petroleum, oil, paraffin and paraffin oil (kerosene) | Fuller's earth Calcium and magnesium bentonite |
Preparation of tar-water emulsion | Sodium bentonite (activated or natural) | |
Asphalt surface stabilizer Lubricating agent for lubricating oil (grease) | Organic bentonite | |
agriculture | Soil improver Compost additive Animal feed additives, binders (improving feed utilization, poultry meat production, egg production rate) animal litter (deodorization) | Various bentonite |
Chemical industry | Carrier of catalysts, insecticides, pesticides and fungicides Rubber and plastic filler Additives for daily chemical products such as desiccant, filter, detergent, soap, etc. Thixotropic and thickening of pigments and puree coatings, in synthetic resins and series of pigments such as iron, lead and zinc | Fuller's earth Sodium bentonite (activated or natural) Lithium-based, magnesium-based bentonite |
Anti-ink settling aid | Organic bentonite | |
Water purification and sewage treatment | Treatment of industrial wastewater (liquid) Swimming pool water purification Food industry waste treatment Adsorbent for radioactive waste | Fuller's earth Sodium bentonite (activated or natural) |
Civil and construction | Suspension of mud tank, stabilizer for soil, lubricant for snoring, plasticizer for concrete and additives Cement mixed material Pool anti-leakage | Various bentonite |
papermaking | Carbon dye, pigment filler | Fuller's earth Calcium and magnesium bentonite |
Textile | Filling, bleaching Antistatic coating Instead of starch sizing and printing paste | Fuller's earth Sodium bentonite (activated or natural) |
Ceramic industry | Plasticizers for ceramic raw materials (increasing the compressive strength of ceramic green bodies) to produce glazes and enamels | Various bentonite |
Medicine, makeup | Drug sorbent and adhesive cream | Magnesium, calcium, lithium, sodium bentonite |
mechanical industry | High temperature lubricant | Organic bentonite |
