Low-cost sheet honeycomb ceramic automobile tail gas purifying material and preparation method thereof
A technology of honeycomb ceramics and automobile exhaust gas is applied in the field of ceramic materials, which can solve the problems of increased use cost, waste of resources, and insufficient heat resistance of ceramic carriers, and achieves the effects of saving costs, reducing raw material costs, and promoting full utilization.
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[0020] A low-cost flaky honeycomb ceramic automobile exhaust purification material is characterized in that it is made of the following raw materials in parts by weight:
[0021] Rare earth tailings 20, cordierite 20, clay 3, bentonite 3, ZrO 2 Powder 5, CrO 2 powder 5, talc powder 10, polytetrafluoroethylene powder 3, magnesium carbonate 3, sodium carbonate 4, stearic acid 8, 1 mol / L HNO 3 Appropriate amount of solution, nano-alumina sol 50, 1 mol / L La(NO 3 ) 3 3, 1 mol / L Sr(NO 3 ) 2 2,1 mol / L Co(NO 3 ) 2 1. 1 mol / L citric acid 2, deionized water 200;
[0022] The solid content of the nano-alumina sol is 20%-25%, and the chemical composition of the rare earth tailings contains SiO 2 76.54 -77.10wt%, Al 2 o 3 17.5 -18.06wt%, Fe 2 o 3 1.98 -2.11wt%, TiO 2 0.38-0.46wt%, K 2 O1.21-1.58wt%, Na 2 O 0.43-0.49wt%, CaO 0.22-0.28wt%, MgO 1.18-1.33wt%.
[0023] Described a kind of low-cost flaky honeycomb ceramic automobile exhaust purification material and prepar...
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