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By selecting the crude ore mined by the company and calcined in the kiln at 1500 for 10 days, the grog is white and the physical and chemical performance is stable. Tested by National Quality Inspection and Supervision Center for Refractories and mineral deposit branch of the Institute of Geology and Mineral, the products have high silicon and alumina, low ferric oxide and more than 95% of kaolinite. It can be used widely in the refractories, ceramics, enviromental protection, petroleum, building material, plastics, rubber, binder, sealing binder, molecular sieve, detergent molecular sieve and etc.