Technical


TECHNICAL DATA SHEET

Product Group: Bentonite

DESCRIPTION:

The natural Bentonite can be described as Na-Ca-Bentonitic clay in so far as its smectite content is concerned.

Uses for Bentonite include palletisation of chrome, coal and iron fines, treatment of AMD (acidic mine drainage), sealing of macro dump and slimes dump floors.

MINERALOGICAL CONSTITUENTS

(Approximate)

Analyses of the clay sample with the values indicating the mineral content in % with * = smectite type = Montmorillonite

** illite

 

 

Mineral  Percentage
Quartz 30
Clay* 65
Plagioclase   2
Mica** <2
Kaolinate <2
Calcite <2

 

TYPICAL CHEMICAL ANALYSIS

SiO2 Al2O3 MgO CaO Na2O K2O FeO TiO2 CO2
52.5 14.3 1.8 2.9 0.8 1.7 6.5 0.8 17.8

 

PHYSICAL PROPERTIES

Moisture (% by weight) 11.5
Viscosity (s) 22.8
pH (5% in H2O)   8.4
Wet screen Analysis-

Grit=53µm (% by weight)

  5.9
Base Exchange Capacity (meq/100g) 33.5
Free swell (ml/2g) 10.5
Sinter Plate Absorption (%) 370.1
Compactability (%) 56.5
Green Compressive Strength (Kpa) 62.4
Dry Compressive Strength (Kpa) 267.2
Shatter Index (%) 51.2
Dry Screen Analysis + 75µm (% by weight)   7.8

 

Print Friendly