Bentonite beneficiation methods are generally divided into dry and wet methods. Most of China's current mines use dry process beneficiation.
Dry beneficiation is generally used to treat bentonite with better ore quality. The method is to dry the raw ore, dry it naturally, dry it with dry mash and dry the oven, then crush it with a manual or jaw crusher, then grind it into 100, 150, 200 mesh with Raymond mill and other roller mills. Level products are sold.
Wet beneficiation is generally used to treat low grade bentonite with a smectite content of 30% to 80%. The method is to pulverize the ore to a particle size of less than 50 mm, add water to make a suspension, and then classify in a hydraulic separator, and the fine grade concentrate obtained is concentrated in a precipitator, dried in a dryer, and then powdered. Grinding, products that are suitable for drilling mud grades.
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