Method for preparing high dispersity nano zinc oxide
A nano-zinc oxide and high-dispersion technology, applied in the direction of zinc oxide/zinc hydroxide, etc., can solve problems such as cost increase, unfavorable industrial production, and increased production operations, and achieve mild reaction conditions, large specific surface area, and good dispersion Effect
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Embodiment 1
[0015] At room temperature, make a mixture of zinc nitrate and ammonium carbonate (the molar ratio of zinc to ammonium is 1:1.2), and then add ammonia water with a mass concentration of 10% to the mixture (the molar ratio of zinc to ammonia is 1:4) , fully stirred for 1 hour, aged at room temperature for 1 day, filtered to obtain the supernatant liquid, distilled ammonia at 70°C, filtered, washed with deionized water until pH = 6, dried at 50°C, and placed in a muffle furnace at 200°C Roast for 2 hours to obtain a nano zinc oxide product.
Embodiment 2
[0017] At room temperature, zinc chloride and ammonium nitrate were made into a mixture (the molar ratio of zinc to ammonium was 1:5), and then ammonia water with a mass concentration of 15% was added to the mixture (the molar ratio of zinc to ammonia was 1:2 ), fully stirred for 2 hours, aged at room temperature for 1 day, and filtered to obtain the supernatant liquid, which was distilled with ammonia at 75°C, filtered, washed with deionized water until pH = 7, dried at 60°C, and placed in a muffle furnace at 300°C Medium roasting for 2 hours to obtain nano zinc oxide product.
Embodiment 3
[0019] At room temperature, zinc chloride and ammonium oxalate were made into a mixture (the molar ratio of zinc to ammonium was 1:3), and then ammonia water with a mass concentration of 15% was added to the mixture (the molar ratio of zinc to ammonia was 1:8 ), fully stirred for 3 hours, aged at room temperature for 2 days, filtered to obtain the supernatant liquid, distilled ammonia at 80°C, filtered, washed with deionized water until pH = 7, dried at 65°C, and dried in a muffle furnace at 400°C Medium roasting for 1 hour to obtain nano zinc oxide product.
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