Method for preparation of porosity adjustable mesh ceramic catalyst carrier with attapulgite
A technology of ceramic catalyst and porosity, which is applied in the direction of catalyst carrier, chemical instrument and method, catalyst activation/preparation, etc. It can solve the problems of cumbersome steps and achieve the effect of simple process, good wear resistance and unique dispersion
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Embodiment 1
[0029]Example 1 A method for preparing a mesh ceramic catalyst carrier with adjustable porosity by using attapulgite, the method refers to: 8 g of attapulgite activated by hydrochloric acid with a solid content of 40%, 4 g of surface active solution and 8 g of aluminum phosphate sol with a mass concentration of 15% were mechanically stirred until uniform, then 0.8 g of fumed silica microspheres were added and mixed to obtain a mixed slurry; then, the mixed slurry was poured into a mold Curing and molding, after drying naturally at room temperature, first drying at 80°C for 2 hours, and then dehydrating and drying at 120°C for 12 hours to form a green body; finally, the green body was dried in a rotary tube furnace in N 2 Under protection, raise the temperature to 300°C at a heating rate of 5°C / min, keep it warm for 1 hour to remove the surfactant, and then raise the temperature to 850°C at a heating rate of 5°C / min for calcination to obtain a mesh ceramic catalyst with adjustab...
Embodiment 2
[0035] Example 2 The method of using attapulgite to prepare a mesh ceramic catalyst carrier with adjustable porosity, the method refers to: 8 g of attapulgite activated by hydrochloric acid with a solid content of 40%, 16 g of surface active solution, 40 g of aluminum phosphate sol with a mass concentration of 15% were mechanically stirred until uniform, and then 4 g of fumed silica microspheres were added and mixed to obtain a mixed slurry; then, the mixed slurry was poured into a mold for solidification Molding, after drying naturally at room temperature, first drying at 80°C for 5 h, then raising the temperature to 120°C for dehydration and drying for 24 h, to form a green body; finally, the green body is formed in a rotary tube furnace, in N 2 Under protection, raise the temperature to 300°C at a heating rate of 5°C / min, keep it warm for 1 hour to remove the surfactant, and then raise the temperature to 850°C at a heating rate of 5°C / min for calcination to obtain a mesh cer...
Embodiment 3
[0040] Example 3 A method for preparing a mesh ceramic catalyst carrier with adjustable porosity by using attapulgite, the method refers to: 8 g of attapulgite activated by hydrochloric acid with a solid content of 40%, 8 g of surface active catalyst with a mass concentration of 15% solution and 24 g of aluminum phosphate sol with a mass concentration of 15% were mechanically stirred until uniform, then 2.4 g of fumed silica microspheres were added and mixed to obtain a mixed slurry; then, the mixed slurry was poured into a mold Curing and forming, after drying naturally at room temperature, first drying at 80°C for 3 hours, and then dehydrating and drying at 120°C for 18 hours to form a green body; finally, the green body was dried in a rotary tube furnace in N 2 Under protection, raise the temperature to 300°C at a heating rate of 5°C / min, keep it warm for 1 hour to remove the surfactant, and then raise the temperature to 850°C at a heating rate of 5°C / min for calcination to ...
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