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Description:Refining Montmorillonite ore Montmorillonite ore contaions as far as 95-98% of montmorillonite, a little quartz, and no cube limestones. Its chemical composition(%): Na2O:0.09, MgO:5.24, Al2O3:16.64, SiO2:58.19, K2O:0.10, CaO:2.83, TiO2:0.13, MnO:0.04, FeO3:4.29, FeO:0.12, CO2:0.18, H2O:11.34 Concentration:72.5mg/15g, Expand capacity:7.5-11.5mg/g. Positive ion exchange capacity:115 -139mmol/100g. RH7.58, It can be used in the fields of chemical industry, medicine, and NM materials etc.