Abstract:Attapulgite is a hydrous magnesium aluminum silicate clay mineral with a unique structure made up of colloidal particles called spicules. Gellation takes place following dispersion when the spicules become attracted to each other, become entangled and form the matrix structure that thickens, entraps, and suspends solids. Proper dispersion and gelling is dependent on the amount of shear and length of time it is applied or the use of chemical means to facilitate dispersion. To achieve gellation chemically disper… Show more
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