The factors that affect the adsorption of bentonite minerals are:
2022-03-11
1) The influence of bentonite type. The adsorption capacity of sodium bentonite is obviously stronger than that of other types of bentonite minerals such as calcium.
2) Effect of particle size of bentonite particles. According to the theory of solid adsorption, the adsorption capacity of the crushed bentonite mineral is obviously improved, and the finer the crushed mineral, the stronger the adsorption.
3) the effect of solution medium. According to the electric double layer theory, bentonite mineral crystals are negatively charged, and ion exchange occurs when the electric double layer is formed. If the ion concentration in the solution is too high, it will compress the electric double layer of bentonite particles, inhibit the dispersion and diffusion of bentonite, and even make bentonite agglomerate and coalesce.
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