烧结-碱溶法从高铝粉煤灰中浸出镓的研究
Mining and Metallurgical Engineering(2016)
Abstract
以高铝粉煤灰为原料,通过对粉煤灰进行烧结活化、碱溶、滤洗等工艺,制得含镓溶液。探讨了烧结助剂种类、碱液种类、碱液浓度、液固比、浸出温度、浸出时间等因素对镓浸出效果的影响。结果表明:以碳酸钠作为烧结助剂,氢氧化钠作为浸出液溶剂,在碱液浓度200 g/L、液固比40∶1、浸出温度60℃、浸出时间6 h时,浸出液中镓含量达到41.438 g/t。
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