| 摘要 |
PURPOSE: Methods for preparing anhydrous calcium silicate and anhydrous calcium alumina silicate are provided, to obtain the porous materials with good heat-resistance, heat insulation and sound proofness by recycling the waste materials. CONSTITUTION: Anhydrous calcium silicate (CaO-nSiO2) is prepared by mixing CaO, Ca(OH)2 and SiO2, molding the mixture; and heating the molded body at the temperature of 700-1.050°C. Anhydrous calcium alumina silicate (CaO-mAl2O3-nSiO2) is prepared by mixing CaO, Ca(OH)2, Al2O3, Al(OH)3 and SiO2, molding the mixture; and heating the molded body at the temperature of 800-1,350°C.
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