Catalyst with fly-ash used as carrier, preparation method thereof and application of catalyst
A technology for fly ash and catalyst, which is applied in chemical instruments and methods, preparation of organic compounds, catalysts for physical/chemical processes, etc., can solve the problems of complex preparation process, difficult separation, equipment corrosion, etc. Active, low production cost effect
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Embodiment 1
[0031] Grind and extract 60 grams of fly ash, soak in 500ml of deionized water and continuously stir for 12 hours, then take it out, filter and wash with water to remove impurities contained in fly ash, dry at 110°C for 2 hours, and then put it in 700 Bake in a muffle furnace at ℃ for 40 minutes.
[0032] Then grind the dried fly ash through a 100-mesh standard sieve. The specific surface area is 20m 2 / g of fly ash is the carrier. Weigh 10 grams of Ce(NO 3 ) 4 , 20 grams of Sm(NO 3 ) 3 The solid is dissolved in 200ml of deionized water to form an aqueous solution. Weigh 40 grams of pretreated fly ash solids, immerse them in the above solution, stir continuously for 2 hours, filter with suction, and then place them in the above rare earth nitrate solution for one time. Filter and dry at 110°C for 3 hours. The dried fly ash loaded with rare earth nitrates is roasted in a muffle furnace at 540°C for 5 hours. After roasting, rare earth nitrates are decomposed into rare earth oxide...
Embodiment 2
[0038] Grind 60 grams of fly ash, soak in deionized water for 12 hours, take it out, filter and wash with water to remove impurities contained in fly ash, dry at 110°C for 2 hours, and then put it in a muffle furnace at 700°C Roast for 40 minutes.
[0039] Then grind the dried fly ash through a 100-mesh standard sieve. The specific surface area is 20m 2 / g of fly ash is the carrier. Weigh 15 grams of Ce(NO 3 ) 4 , 42 grams of Sm(NO 3 ) 3 The solid is dissolved in 200ml of deionized water to form a solution with a certain concentration. Weigh 40g of the pretreated fly ash solid, then immerse it in the above solution, keep stirring for 2 hours, suction and filter, and then place it in the above rare earth nitrate solution repeatedly Once, filter with suction and dry at 110°C for 3 hours. The dried fly ash loaded with rare earth nitrates was roasted in a muffle furnace at 540°C for 5 hours. After roasting, the rare earth nitrate is decomposed into rare earth oxides to obtain a fl...
Embodiment 3
[0046] Grind and extract 60 grams of fly ash, soak in deionized water for 12 hours, take it out, filter and wash with water to remove impurities contained in fly ash, dry at 110°C for 2 hours, and then put it in a muffle furnace at 700°C Roast for 40 minutes.
[0047] Then grind the dried fly ash through a 100-mesh standard sieve. The specific surface area is 15m 2 / g of fly ash is the carrier. Weigh 15 grams of Ce(NO 3 ) 4 , 30 grams of Sm(NO 3 ) 3 The solid is dissolved in 200ml of deionized water to form a solution with a certain concentration. Weigh 40g of the pretreated fly ash solid, then immerse it in the above solution, keep stirring for 2 hours, suction and filter, and then place it in the above rare earth nitrate solution repeatedly Once, filter with suction and dry at 110°C for 3 hours. The dried fly ash loaded with rare earth nitrates is roasted in a muffle furnace at 540°C for 5 hours. After roasting, the rare earth nitrate is decomposed into rare earth oxides to ...
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