| Bentonite is a clay mineral montmorillonite -based water . The chemical composition of montmorillonite : (Al2, Mg3) Si4O10 OH2 · nH2O, because of its special properties. As swellable , adhesion, adsorption, catalytic, thixotropic , suspension and cation exchange . It is widely used in various industrial fields. 2:1 crystal structure of bentonite montmorillonite is the main mineral component of non-metallic mineral , montmorillonite structure is composed of a layer of aluminum oxide octahedral sandwiched by two silicon-oxygen tetrahedron [3] , due to the montmorillonite forming a layered cell structure of the presence of certain cations, such as Cu, Mg, Na, K , etc., and the role of these cations with the smectite cell very unstable and susceptible to other cation exchange , it has good ion exchange sex . Abroad has produced more than 100 industrial and agricultural sectors in the field of 24 applications , there are more than 300 products , so people call it "universal earth ." |