Ultrasonic centrifugal purification and sodium-based treatment method for low-grade bentonite
A technology of centrifugal purification and bentonite, which is applied in chemical instruments and methods, inorganic chemistry, silicon compounds, etc., can solve the problems that bentonite contains other impurity minerals and is difficult to meet the purity requirements, and achieves good purification effect, enhanced electrostatic repulsion, and improved The effect of dispersion
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[0016] An ultrasonic centrifugal purification and sodium-based method for low-grade bentonite includes the following specific steps:
[0017] (1) Mix an appropriate amount of bentonite with 0.5% sodium polyacrylate of bentonite mass, add deionized water to 5% mass fraction of the pulp, stir evenly with a high-speed homogeneous dispersing machine at a speed of 2000 rpm, and then statically Set, remove the lower layer of sediment, get the upper layer suspension for use;
[0018] (2) Put the upper suspension obtained in step (1) into a container, put the container into an ultrasonic oscillator, ultrasonic treatment at a frequency of 40kHz for 10 minutes, take out the container, remove the flocculent sediment at the bottom, and use a high-speed suspension for the suspension. After centrifugation at a speed of 1200 rpm for 10 minutes, the centrifugal equipment removes impurities at the bottom and filters and drys the intermediate suspension to obtain purified bentonite;
[0019] (3) Add ...
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