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HIGH PURITY ZINC OXIDE POWDER, METHOD FOR PRODUCING THE SAME, AND HIGH PURITY ZINC OXIDE TARGET AND HIGH PURITY ZINC OXIDE THIN FILM
HIGH PURITY ZINC OXIDE POWDER, METHOD FOR PRODUCING THE SAME, AND HIGH PURITY ZINC OXIDE TARGET AND HIGH PURITY ZINC OXIDE THIN FILM
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机译:高纯氧化锌粉末,其制备方法以及高纯氧化锌靶材和高纯氧化锌薄膜
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摘要
PROBLEM TO BE SOLVED: To provide a high purity zinc oxide powder in which impurities, particularly C, Cl, S and Pb impurities, are removed efficiently at a low cost and a method for producing the same, to provide a target obtained by firing the high purity zinc oxide power, and to provide a high purity zinc oxide thin film obtained by sputtering the target.;SOLUTION: A method for producing a high purity zinc oxide powder includes the steps of: subjecting a raw material such as Zn-containing scrap to acid leaching or electrolytic extraction; subjecting the resulting raw material to solvent extraction and activated carbon treatment to remove impurities; neutralizing the solution free of impurities with an alkali solution to obtain zinc hydroxide; and firing the zinc hydroxide to obtain zinc oxide.;COPYRIGHT: (C)2014,JPO&INPIT
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