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    • 5. 发明申请
    • METHOD FOR PREPARING CERAMIC FILTER AND CERAMIC FILTER PREPARED BY THE SAME
    • 制备陶瓷过滤器的方法和由其制备的陶瓷过滤器
    • WO2007013747A1
    • 2007-02-01
    • PCT/KR2006/002825
    • 2006-07-19
    • LG CHEM, LTD.CHOI, Jong SikKONG, Young MinAHN, HoonKIM, Sun JooJUNG, Seong MoonHAN, Dae Gon
    • CHOI, Jong SikKONG, Young MinAHN, HoonKIM, Sun JooJUNG, Seong MoonHAN, Dae Gon
    • B01D39/20
    • B01D46/527B01D39/2068B01D46/0001B01D2279/30
    • The present invention relates to a method for preparing a ceramic filter and a ceramic filter prepared by the same. The method for preparing the ceramic filter according to the present invention is characterized in comprising the steps of: (a) coating firstly a ceramic green paper prepared by using a slurry solution comprising ceramic fiber of 0.1-10 mm length, with an aluminum silicate solution and drying the firstly coated paper; (b) coating secondly the dried ceramic green paper with an aluminum phosphate solution and drying the secondly coated paper; and (c) calcining the dried ceramic green paper obtained from the step (b). The ceramic filter according to the present invention has excellent mechanical strength since the bonding strength between ceramic fibers is very high, and shows good porosity, gas permeability, and efficiency for capturing microparticles since the pores between the ceramic fibers are less blocked, and thus can be very usefully applied to gas exhaustion system for automobile.
    • 本发明涉及一种制备陶瓷过滤器的方法和由其制备的陶瓷过滤器。 根据本发明的陶瓷过滤器的制备方法的特征在于包括以下步骤:(a)首先涂覆通过使用包含0.1-10mm长度的陶瓷纤维的浆料溶液制备的陶瓷绿色纸与硅酸铝溶液 并干燥第一次涂布纸; (b)用磷酸铝溶液二次涂覆干燥的陶瓷绿纸,并干燥第二次涂布的纸; 和(c)煅烧由步骤(b)获得的干燥的陶瓷绿色纸。 本发明的陶瓷过滤器由于陶瓷纤维的接合强度非常高,因此陶瓷纤维之间的孔隙较少被堵塞,因此具有良好的孔隙率,透气性和捕获微粒的效率,所以具有优异的机械强度,因此可以 非常有用地应用于汽车排气系统。