磷尾矿酸解后的氧化镁提浓技术
Technology & Development of Chemical Industry(2023)
Abstract
在盐酸酸解磷尾矿工艺的脱钙过程中,大约有15%的氧化镁会残留在脱钙滤液里.为了提高脱钙滤液中氧化镁的浓度,降低后续工艺的能耗,将脱钙滤液返回酸解反应容器,同时加入新的磷尾矿进行循环酸解反应,最终氧化镁的浓度提高到190g·L-1以上.
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