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Casting bentonite quality indicators
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project
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Grade
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2 items
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Three Goods
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4 items
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Wet compressive strength/kPa≥
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100
|
70
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50
|
30
|
|
Hot wet tensile strength/kPa≥
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2.5
|
2.0
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1.5
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0.5
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Blue absorption capacity/(g/100g) ≥
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32
|
28
|
25
|
22
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Sieving ratio (75μm, dry sieving), mass fraction /%≥
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85
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Water (105 ° C). Mass fraction /%
|
9-13
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Note: The casting of Ca-bentonite pull-degree heat and moisture not do requests
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| Specifications︰ | 50-325 |
| Advantages︰ | The sodium-base bentonites as the binder of iron-ore pellet can remarkably increase the strength and rupture temperature of green pellets, and expand the roasting area. It can reduce the cost and obviously improve the economical effect of iron and steel enterprises due to its good permeability, high sulfur-removing capacity and low returns-out. |
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