BENTONITE

Bentonite is a clay generated frequently from the alteration of volcanic ash, consisting predominantly of smectite minerals, usually montmorillonite. Other smectite group minerals include hectorite, saponite, beidelite and nontronite. Smectites are clay minerals, i.e. they consist of individual crystallites the majority of which are <2µm in largest dimension. 

The extent of hydration produces intercrystalline swelling. Depending on the nature of their genesis, bentonites contain a variety of accessory minerals in addition to montmorillonite. These minerals may include quartz, feldspar, calcite and gypsum. The presence of these minerals can impact the industrial value of a deposit, reducing or increasing its value depending on the application. 

Main Applications  :

  • Agriculture and Animal Feeds
  • Asphalt Emulsifiers
  • Ceramics
  • Construction and Civil Engineering
  • Detergents
  • Environmental Sealants
  • Horizontal Drilling
  • Household Cleaners
  • Industrial Coatings
  • Iron Ore Pelletizing
  • Metal Casting
  • Oils/Food Processing
  • Oil and Gas Drilling
  • Paints, Dyes and Polishes
  • Papermaking and Paper Recycling
  • Pet Products
  • Pharmaceuticals, Cosmetics and Medicine
  • Wastewater Treatment
  • Wine and Juice Clarification 


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