Bentonite is a clay mineral that is often produced from changes in volcanic ash and mainly contains the minerals smectite and montmorillonite. Other minerals of the smectite group include hectorite, saponite, beidelite, and nontronite.

Physical and chemical characteristics of bentonite types:

1- Sodium bentonite

2-Calcium bentonite

3-Potassium bentonite

Applications of bentonite:

1- In casting

2- For preparing cat litter

3- In pelletizing

4- In construction and civil engineering

5- In treatment plants

6- Drilling bentonite

7- Edible bentonite

8- Agricultural bentonite

9- Bentonite in medicines and cosmetics and medical products

10- Detergent bentonite

11- Application in colors and pigments

12- Application in paper making

13- Use in catalyst production

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