Abstract

Hydrolytic processing of bismuth-containing nitrate solutions into basic nitrate and bismuth oxide of reagent purity was studied by chemical and X-ray diffraction analyses and electron microscopy. The results were confirmed by industrial trials of the developed procedure based on the oxidation of bismuth metal dissolution of the resulting technical oxide in nitric acid, its purification from impurity metals by aqueous alkaline hydrolysis, transformation of basic bismuth nitrate into basic carbonate, and their calcination to oxide.

中文翻译：

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硝酸盐溶液的制备制备碱式硝酸铋和氧化物

摘要

通过化学和X射线衍射分析以及电子显微镜研究了含铋硝酸盐溶液的水解过程，将其纯度提高为碱性硝酸盐和氧化铋。该结果已通过以下方法的工业试验得到了证实：该方法基于铋金属的氧化，将所得工业用氧化物溶解在硝酸中；通过水溶液碱水解将其从杂质金属中纯化；将碱式硝酸铋转化为碱式碳酸盐；以及对其进行煅烧氧化。