The present invention provides a porous ceramic material has excellent heat resistance, acid resistance and alkali resistance, comprising three or more from the silicon oxide (SiO: 2), aluminum oxide (Al: 2 O: 3), transition metal oxides M: X O: y selection oxide, (wherein M represents 4B, 5B or 6B transition metal, Zr, from Ti, Hf, V, Nb, Ta, Cr, Mo, W or Ce is selected, X represents 1 to 3 integer Y represents 1 to 3, and the integer) provides the porous ceramic materials preparation. Through the application according to the structure of the invention on the preparation, thermal and chemical stability of ceramic material to the porous honeycomb support to purify exhaust gases, or applied to the filter (DPF, diesel particulate filter) to purify diesel exhaust gas, it can prevent or significantly reduce when the destruction of any structure using cordierite as support from bluestone materials caused by corrosive gas.
【技术实现步骤摘要】
【国外来华专利技术】
【技术保护点】
具有优良耐热、耐酸和耐碱性的多孔陶瓷材料,其包括三种以上从硅氧化物(SiO↓[2])、铝氧化物(Al↓[2]O↓[3])和过渡金属的氧化物MxOy中选取的氧化物,[其中M代表4B、5B或6B-族过渡金属,可从Ti、Zr、Hf、V、Nb、Ta、Cr、Mo、W或Ce中选取,x代表1到3的整数,y代表1到3的整数]。
【技术特征摘要】
【国外来华专利技术】...
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