Crushed And Dried Bentonite

The products are manufactured from lump bentonite of the Askan field. Crushed dry bentonite is used for the production of bentonite products for various purposes: clay powders for foundry, for drilling muds, adsorbents, etc. as well as in the production technology of iron ore pellets.
Processing includes stone separation, grinding of bentonite in its raw form to a particle size of not more than 18 mm. If necessary, grinding it in a wet state with additives of soda or other reagents and subsequent drying to a moisture content of 14-20% – the exact humidity level is determined by the Customer’s requirements..

Quality indicators of bentonite of the lump Askan deposit
№
 Indicator (standard definition) Value
1
 Fraction, mm 0,0 – 18,0
2
Humidity,% (ГОСТ 28177 – 89 )
14-20
3
Colloidal,% (ГОСТ 28177 – 89)
25 – 85
4
Water absorption unit (ГОСТ 28177 – 89)
2,8 – 8,0
5
Methylene blue adsorption, mg eq. (MBA-test , VDG P-69)
300  –  400
6
Swelling Index, ml. / 2g. (ASTM D5890)
8 – 28
7
Compressive strength in the wet state, kg.s./cm.2 (ГОСТ 28177 – 89 или  VDG P-69)
 on request
8
Tensile strength at break in the zone of moisture condensation, kg.s./cm.2 (ГОСТ 28177 – 89  или  VDG P-69)
 on request
9
Thermal stability (ГОСТ 28177 – 89)
 on request

Fractionated and dried Bentonite can be produced according to requirements.:

  1. The standard of the enterprise of Georgia STP GR 22983003-001-2017;
  2. Interstate standard GOST 28177-89 “Forming bentonite clays. General technical conditions “;
  3. Customer Specifications

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