Welcome to Imerys Performance Additives Division

Altonit®

Altonit® For supreme adsorptive power during wet end processing and improved paper quality

Altonit® is an ideal solution for retention, dewatering and stickies control in deinked (DIP) and recycled (RCF) base paper and board production.

Altonit® bentonite consists of smectite clay minerals such as montmorillonite which are layered alumino-silicates that swell when in contact with water. Montmorillonite platelets are also very thin meaning they have a very high available surface area. When added to water, these platelets expand until the whole material is dispersed into very thin single sheets. This very high surface area, combined with the cationic charge of the material, makes bentonite ideal for applications requiring adsorption, flocculation and dewatering.

Altonit structure
Altonit® bentonite consists of smectite clay minerals such as montmorillonite which are layered alumino-silicates that swell in contact with water

Altonit® is particularly recommended for deinked (DIP) and recycled fiber (RCF) based paper and board production where it:

  • Adsorbs contaminants in water streams
  • Improves fines and filler retention
  • Prevents sticky deposits in machine circuits
  • Improves drainage time
  • Increases retention of paper additives (sizing agents, etc.) and special pigments
  • Improves paper quality

We offer a full range of bespoke formulation and technical and process support services to help you match the right mineral grade to your application requirement.

Please contact us, we will be only too happy to help

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