高纯氧化钪制备过程中锆的去除工艺及机制

Hydrometallurgy of China（2018）

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Abstract

研究了用苦杏仁酸和磷酸分别沉淀锆以实现钪与锆分离.结果表明:磷酸比苦杏仁酸沉淀锆效果更佳;在酸度6 mol/L、磷酸用量为理论量1.6倍条件下,锆沉淀率为99.53％,而氧化钪损失率仅为2.90％,锆与钪分离效果较好;磷酸除锆工艺简单,高效,成本低,环境友好,可制备高纯氧化钪.

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