Novel preparation method of ceramic microspheres
A technology of ceramic microspheres and microspheres, which is applied in the field of ceramic materials, can solve problems that are difficult to satisfy performance, efficiency, economy and environmental protection at the same time, and achieve the effects of mass industrial production, cost reduction, and rapid temperature rise
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Embodiment 1
[0025] Example 1: Preparation of lithium titanate ceramic microspheres for tritium value-added agent
[0026] Take Li 2 TiO 3 Powder and water are used as raw materials, triammonium citrate is used as dispersant, and isooctanol is used as defoamer. Select graphite powder with an average particle size of about 20μm to prepare ceramic microspheres with a particle size of 0.8mm, and proceed as follows:
[0027] (1) Put Li 2 TiO 3 Mix powder, water and triammonium citrate to prepare a slurry with a solid content of 45%. The quality of triammonium citrate is Li 2 TiO 3 0.4% of the powder mass; ball mill the mixed solution on a planetary mill at 300 revolutions per minute for 4 hours, add 0.1% of the powder mass of isooctyl alcohol, and then stir and vacuum for 5 minutes; obtain a uniform slurry with good dispersion;
[0028] (2) Spread the graphite powder and scrape it flat, press out a hemispherical groove with a diameter of 1mm and a depth of 2mm on the surface, and drip the slurry onto...
Embodiment 2
[0032] Example 2: Preparation of lithium metaaluminate ceramic microspheres for tritium value-added agent
[0033] Take γ-LiAlO 2 Powder and water are used as raw materials, ammonium polyacrylate is used as dispersant, and fatty acid is used as defoamer. Select carbon powder with an average particle size of about 50μm to prepare ceramic microspheres with a particle size of 1mm, and proceed as follows:
[0034] (1) The γ-LiAlO 2 Mix powder, water and ammonium polyacrylate to prepare a slurry with a solid content of 50%. The quality of triammonium citrate is γ-LiAlO 2 0.4% of the powder mass; continuously stir the mixture for 2 hours, then add 0.1% of the powder mass of fatty acids, and then stir and vacuum for 10 minutes; obtain a uniform slurry with good dispersibility;
[0035] (2) Spread and scrape the carbon powder flat, press out a hemispherical groove with a diameter of 1.3 mm and a depth of 2 mm on the surface, and drop the slurry onto the grooved carbon powder through a dispe...
Embodiment 3
[0039] Example 3: Preparation of lithium orthosilicate ceramic microspheres for tritium value-added agent
[0040] Take Li 4 SiO 4 Powder and water are raw materials, triammonium citrate is used as dispersant, and fatty acid is used as defoamer. Select carbon powder with an average particle size of 50μm and graphite powder with 20μm to mix in a mass ratio of 1:1 to prepare Li with a particle size of 1mm 4 SiO 4 Ceramic microspheres, proceed as follows:
[0041] (1) Put Li 4 SiO 4 Mix powder, water and triammonium citrate to prepare a slurry with a solid content of 55%. The quality of triammonium citrate is Li 4 SiO 4 0.5% of the powder mass; ball mill the mixture on a planetary mill at 300 revolutions per minute for 8 hours, add 0.1% of the powder mass of fatty acids, and then stir and vacuum for 5 minutes; obtain a uniform slurry with good dispersion;
[0042] (2) Spread out the mixture of graphite and carbon powder, and press out a hemispherical groove with a diameter of 1.3 mm an...
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