Preparation method of high-activity carrier material
A carrier material and high-activity technology, applied in the field of preparation of high-activity carrier materials, can solve the problems of material or catalyst acidity distribution or acidity optimization not mentioned
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Embodiment 1
[0052] Dissolve 166.94g of boric acid with 334mL of distilled water, then slowly inject 115.26g of phosphoric acid into the boric acid solution, mix for 50 minutes, the final pH value is 2.3, and then mix 200g of borophosphoric acid, 2000g of kaolin (dry basis), 4.5% of sodium silicate, 3.5% of silica sol, 7.5% of structural aid zinc nitrate, and chemical water were prepared into a mixed slurry with a solid content of 46%, and spray-dried to obtain 2300 g of spray microspheres P1 with a particle size of 20-110 μm.
[0053] Part of the P1 sprayed soil spheres was calcined at 925 °C for 2.7 h to obtain calcined microspheres G1, and the other part was calcined at 650 °C for 2.5 h to obtain calcined microspheres B1, and then 200 g of G1 and 300 g of B1 were mixed and added with sodium silicate, The directing agent, sodium hydroxide solution and chemical water were hydrothermally crystallized at 95°C for 30h, the mother liquor was removed by filtration, washed with water and dried t...
Embodiment 2
[0055] Dissolve 445.2g of boric acid with 555mL of distilled water, then slowly inject 230.52g of phosphoric acid into the boric acid solution, mix for 20 minutes, the final pH is 2.8, and then mix 100g of borophosphoric acid, 1600g of kaolin (dry basis), 9% sodium pyrophosphate, 6% of aluminum sol, 0.5% of structural aid magnesium nitrate, and chemical water were prepared into a mixed slurry with a solid content of 32%, and spray-dried to obtain 1430 g of spray microspheres P2 with a particle size of 20-110 μm.
[0056] The P2 sprayed soil balls were calcined at 990 °C for 1.5 h to obtain calcined microspheres G2. Add 100g G2 to sodium silicate, directing agent, sodium hydroxide solution, chemical water, hydrothermally crystallize at 85°C for 16h, filter to remove the mother liquor,
[0057] Wash with water and dry to obtain product J2.
Embodiment 3
[0059]Dissolve 148.39g of boric acid with 600mL of distilled water, then slowly inject 922.08g of phosphoric acid into the boric acid solution, mix for 45 minutes, the final pH value is 1.2, and then mix 520g of borophosphoric acid, 2600g of kaolin (dry basis), 6% of sodium silicate, 8% of silica sol, 2% of lanthanum nitrate as a structural aid, and chemical water were prepared into a mixed slurry with a solid content of 40%, and spray-dried to obtain 482 g of spray microspheres P3 with a particle size of 20-110 μm.
[0060] A part of P3 was calcined at 920°C for 2.5h to obtain calcined microspheres G3, and the other part was calcined at 730°C for 2.8h to obtain calcined microspheres B3, and then 50g of G3 and 150g of B3 were added to sodium silicate, directing agent, hydroxide Sodium solution and chemical water were hydrothermally crystallized at 93 °C for 36 h, the mother liquor was removed by filtration, washed with water and dried to obtain product J3.
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