Forming dispersed powder of stabilized zirconium dioxide, by heating aqueous solution of zirconium nitrate, cooling, adding sulfuric acid, carrying out joint neutralization of sulfated zirconium and yttrium nitrate with ammonia and washing
	POLIVODA D O
	2023-05-20
专利权人	POLIVODA D O (POLI-Individual)
申请日期	2023-05-20
专利号	RU2023113090-A
成果简介	NOVELTY - Producing dispersed powder of stabilized zirconium dioxide with an yttrium oxide content of 8.8 mol.%, includes mixing nitric acid solutions of zirconium and yttrium, obtaining sulfated zirconium, neutralizing the suspension to form zirconium hydroxide, washing, drying and firing to obtain a powder of stabilized zirconium dioxide, heating aqueous solution of zirconium nitrate to a temperature of 80° C and after cooling, adding sulfuric acid to ensure a molar ratio of zirconium sulfate equal to 2, carrying out a joint neutralization of sulfated zirconium and yttrium nitrate with an aqueous solution of ammonia by drip feeding into a reactor in which a constant pH value of 6 is maintained, followed by taking to a pH value of 8, washing the precipitate until the concentration of nitrate ions in the wash waters is ≯ 0.01 mol/l, the precipitate is fired at a temperature of 1100° C to obtain a powder, yttrium-stabilized zirconium dioxide with a mass average particle diameter of 2.1 μ m. USE - The method is useful for producing a dispersed powder of stabilized zirconium dioxide. ADVANTAGE - None given.
IPC 分类号	B22F-001/00
国家	俄罗斯
专业领域	材料科学
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/21823
专题	中国科学院新疆生态与地理研究所
作者单位	POLIVODA D O (POLI-Individual)
推荐引用方式 GB/T 7714	POLIVODA D O. Forming dispersed powder of stabilized zirconium dioxide, by heating aqueous solution of zirconium nitrate, cooling, adding sulfuric acid, carrying out joint neutralization of sulfated zirconium and yttrium nitrate with ammonia and washing. RU2023113090-A[P]. 2023.

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