Synthetic method of catalyst carrier for automobile tail gas purifier
A technology of catalyst carrier and automobile exhaust, which is applied in the direction of catalyst carrier, chemical instruments and methods, physical/chemical process catalysts, etc., and can solve problems such as catalyst poisoning
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Embodiment 1
[0026] Embodiment 1, a kind of synthetic method of catalyst carrier for automobile exhaust purifier, carry out following steps successively:
[0027] 1), preparation of honeycomb ceramic powder:
[0028] Using micron silicon carbide as base material, boron carbide as sintering aid, silicon carbide fiber as reinforcing phase, polycarbosilane as pore-forming agent, the weight ratio of micron silicon carbide, boron carbide, silicon carbide fiber and polycarbosilane is 80: After 5:5:10 mixing, honeycomb ceramic powder is obtained;
[0029] 2), mixed practice mud:
[0030] Mix water, ethylene propylene polymer (ie, ethylene propylene copolymer) and ethylene glycol to obtain a solution, and the weight ratio of water, ethylene propylene polymer and ethylene glycol is 70:15:15;
[0031] Mix the above mixed solution with the honeycomb ceramic powder according to the weight ratio of 100:70, then fully knead in a mixer at normal temperature and pressure for 0.5 hours, and stale for 2 h...
Embodiment 2
[0042] Embodiment 2, a kind of synthetic method of catalyst carrier for automobile exhaust purifier, carry out following steps successively:
[0043] 1), preparation of honeycomb ceramic powder:
[0044] Using micron silicon carbide as base material, boron carbide as sintering aid, silicon carbide fiber as reinforcing phase, polycarbosilane as pore-forming agent, the weight ratio of micron silicon carbide, boron carbide, silicon carbide fiber and polycarbosilane is 80: After 4:6:10 mixing, honeycomb ceramic powder is obtained;
[0045] 2), mixed practice mud:
[0046] Mix water, ethylene propylene polymer (ie, ethylene propylene copolymer) and ethylene glycol to obtain a solution, and the weight ratio of water, ethylene propylene polymer and ethylene glycol is 70:15:15;
[0047]The above mixed solution and honeycomb ceramic powder are fully mixed according to the weight ratio of 100:75, then fully kneaded in a mixer at normal temperature and pressure for 40 minutes, and stal...
Embodiment 3
[0058] Embodiment 3, a kind of synthetic method of catalyst carrier for automobile exhaust purifier, carry out following steps successively:
[0059] 1), preparation of honeycomb ceramic powder:
[0060] Using micron silicon carbide as base material, boron carbide as sintering aid, silicon carbide fiber as reinforcing phase, polycarbosilane as pore-forming agent, the weight ratio of micron silicon carbide, boron carbide, silicon carbide fiber and polycarbosilane is 80: After mixing 5:6:9, honeycomb ceramic powder is obtained;
[0061] 2), mixed practice mud:
[0062] Mix water, ethylene propylene polymer (ie, ethylene propylene copolymer) and ethylene glycol to obtain a solution, and the weight ratio of water, ethylene propylene polymer and ethylene glycol is 70:15:15;
[0063] Mix the above mixed solution with the honeycomb ceramic powder according to the weight ratio of 100:75, then fully knead in a mixer at normal temperature and pressure for 50 minutes, and stale for 2.5...
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