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A New Economical Method for Fabricating High-Purity Bi_2O_3 via Extraction-Precipitation Stripping and Post Annealing

机译:一种通过提取沉淀剥离和后退火制造高纯度Bi_2O_3的新经济方法

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High-purity Bi_2O_3 was prepared via extraction-preparation stripping method use BiCl_3 leaching solution. Parameters such as oxalic acid concentration, phase ration, aging duration, feeding duration, were examined for their effect on the size and morphology of precipitate. The precipitate was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), particle size analysis, differential scanning calorimetry and thermal gravity analysis (DSC-TGA) and infrared spectroscopy analysis (FT-IR). Bi_2O_3 was characterized by elements analysis, particle size analysis and scanning electron microscopy (SEM). Bi_2O_3 product of 680 nm was obtained using 15 g/L oxalic acid, 1/1 phase ration, 0 min aging duration, 0 min feeding duration and calcinating at 500°C for 2 h.
机译:通过提取制备剥离方法制备高纯度Bi_2O_3,使用BiCl_3浸出溶液。检查诸如草酸浓度,相级,老化持续时间,喂养持续时间的参数,用于其对沉淀物的尺寸和形态的影响。通过X射线衍射(XRD),扫描电子显微镜(SEM),粒度分析,差示扫描量热和热重力分析(DSC-TGA)和红外光谱分析(FT-IR),表征沉淀物。 Bi_2O_3的特征在于元素分析,粒度分析和扫描电子显微镜(SEM)。使用15g / L草酸,1/1相常量,0分钟持续时间,0分钟进料持续时间,煅烧500℃,得到680nm的Bi_2O_3乘积,并在500℃下煅烧2小时。

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