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    • 31. 发明公开
    • 티탄산바륨의 제조방법, 및 이에 의하여 제조된 티탄산바륨
    • 钛酸钡和钛酸钡的制造方法
    • KR1020140073637A
    • 2014-06-17
    • KR1020120138467
    • 2012-11-30
    • 삼성전기주식회사
    • 전보연박지호최연규
    • C01G23/00C04B35/468C04B35/622
    • The present invention relates to a method for preparing barium titanyl oxalate, to a method for preparing barium titanate comprising same, and to barium titanyl oxalate and barium titanate prepared by the methods. The present invention is characterized in that synthesis conditions such as the synthesis temperature and the concentration of a material can be adjusted in the process of synthesizing barium titanyl oxalate, wherein the process is performed by the dropwise addition of an aqueous solution of barium chloride and an aqueous solution of titanyl chloride to an aqueous solution of oxalic acid. According to the present invention, barium titanyl oxalate having a large specific surface area can be prepared after the synthesis, and barium titanate having Ba/Ti mole ratio of 0.999 to 1.001 can be prepared.
    • 本发明涉及一种制备草酸氧钛钡的方法,其制备包含该钛酸钡的方法,以及通过该方法制备的草酸氧钛钡和钛酸钡。 本发明的特征在于可以在合成草酸氧钛草的过程中调节诸如合成温度和材料浓度的合成条件,其中该方法是通过滴加氯化钡水溶液和 二氯氧化钛水溶液加入草酸水溶液中。 根据本发明,可以在合成后制备比表面积大的草酸氧钛钡,并且可以制备Ba / Ti摩尔比为0.999〜1.001的钛酸钡。
    • 40. 发明授权
    • 티탄산바륨 나노분말의 제조방법
    • 钛酸钡纳米粉的制造方法
    • KR101261497B1
    • 2013-05-13
    • KR1020110116865
    • 2011-11-10
    • 한국세라믹기술원
    • 신효순여동훈박국효
    • C04B35/468C01G23/04B01J19/10B82B3/00
    • H01G4/1227B01J19/10C01D1/04
    • PURPOSE: A manufacturing method of barium titanate nanopowder is provided to synthesize barium titanate at a lowered reaction temperature by adding a small amount of water and/or applying ultrasonic energy to a mixture of salt and material powder. CONSTITUTION: A manufacturing method of barium titanate nanopowder comprises the following steps: barium titanate is synthesized by heating and reacting a mixture of oxalate, BaCO3 or BaO composition material powder, and TiO2 composition material powder; and barium titanate powder is manufactured by drying the synthesized barium titanate. Water is added to the mixture. The ultrasonic energy is applied to the water-added mixture. The concentration of the oxalate to the added water is 0.1-50N. The oxalate includes at least one among KOH salt and KOH-KCl mixed salt. The particle size of the powder is 5-200nm. The synthesizing reaction temperature is 100-400 deg. C.
    • 目的:提供钛酸钡纳米粉末的制造方法,通过向盐和材料粉末的混合物中加入少量的水和/或施加超声波能量,在降低的反应温度下合成钛酸钡。 构成:钛酸钡纳米粉末的制造方法包括以下步骤:通过加热和反应草酸盐,BaCO 3或BaO组合物材料粉末的混合物和TiO 2组合物材料粉末来合成钛酸钡; 通过干燥合成的钛酸钡制造钛酸钡粉末。 向混合物中加入水。 将超声能量施加到添加水的混合物。 草酸盐与加入水的浓度为0.1-50N。 草酸盐包括KOH盐和KOH-KCl混合盐中的至少一种。 粉末的粒径为5-200nm。 合成反应温度为100-400度。 C。