Al203≥ 36 ± 1%, Fe203 <0.8%, K20 ≤1,6%, SiO2 = 49 ± 1, Whiteness> 85%, kaolin or kaolin soil, kaolin clay is a white, friable , refractory, the key ingredient is the mineral kaolinite and some other minerals such as illite, montmorillonite, quartz, etc. in industry, kaolin is used in many different fields, such as ceramic production porcelain, refractories, abrasives, aluminum production, aluminum alum, molding, paint filler, rubber, paper, white cement etc.
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