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Recovery of scandium values through selective precipitation of hematite and basic iron sulfates from acid leachates
Recovery of scandium values through selective precipitation of hematite and basic iron sulfates from acid leachates
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机译:通过从酸性浸出液中选择性沉淀赤铁矿和碱性硫酸铁来回收scan值
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摘要
A method is provided for recovering scandium values from scandium-bearing ores. The method includes providing a scandium-bearing ore; subjecting the scandium-bearing ore to atmospheric pressure acid leaching with sulfuric acid, thereby producing a first, scandium-bearing solution containing ferric (Fe3+) ions; subjecting the first solution to hydrothermal processing, thereby precipitating from the first solution a material selected from the group consisting of hematite and basic iron sulfates and generating a second, scandium-bearing solution; and recovering scandium values from the second solution.
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