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Bentonite:
 I. Calcium-based bentonite
II. Low viscosity sodium bentonite has good green compression strength and hot compression strength for high temperature pouring mould sand.
III. Sodium-based bentonite selected by human has excellent mechanical properties and good fluidity.
Purpose
1.molding sand for castings;
2.drilling slurry washing fluid;
3.painting, coating and emulsion;
4.Pet cushions absorbents;
5. the binder of thermal insulation material of asbestos;
6.radioactive waste absorber, water purification agents and decolorants;
7.pesticide carrier or thinner and pesticide;
8.Seepage and water prevention cushion in the Hydraulic Engineering, engineering and buildings.
Grade |
Hot/warm tensile strength (Mpa) |
Green compression strength (Mpa) |
colloid fraction (﹪) |
Expansion rate |
Granularity over 200 mesh
(﹪) |
Water content(﹪) |
Mud making rate |
Level I
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2.5 |
0.0049 |
100 |
25-30 |
95 |
≤10 |
≥16 |
Level II |
2-2.5 |
0.00294- 0.0049 |
100 |
18-25 |
90 |
≤12 |
≤12-15 |
Item |
White (﹪) |
Viscosity PS |
Colloid ( ml/15g) |
PH value |
Moisture (﹪) |
Capacity expansion (ml/g) |
Granularity (mesh) |
Index |
≥75 |
≥2.8 |
≥90 |
8-10.5 |
≤10 |
≥20 |
300--325 |
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