Bentonite powder processing

26/02/2022

Bentonite is a water-containing clay ore mainly composed of montmorillonite. The main indicators of its raw ore quality are generally montmorillonite content, blue absorption and colloidal price.

Bentonite production process
1. Crushing
The Mohs hardness of bentonite is 1 to 2. It is a soft non-metallic mineral and can be initially crushed.
2. Drying
Natural or heated drying can be used to remove moisture (water content ≤ 12%-6%). In order to prevent the performance of bentonite from changing due to structural changes of montmorillonite, the drying temperature should be lower than 250 ℃, and the time should not be too long.
3. Grinding
In order to meet the requirements of high fineness of bentonite in industries such as paper, plastic and rubber products. Bentonite grinding equipment usually can choose European version mill, super-pressure trapezoid mill and vertical mill for grinding.
4. Packaging
The finished materials are packaged and sent to the market.

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