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含锰磁铁相还原氧化锰矿的浸出工艺
Authors
张美菊
朱庆山
+3 more
谢朝晖
邵国强
邹正
Publication date
1 January 2018
Publisher
Abstract
针对含锰磁铁相的还原氧化锰矿浸出效果差的问题,以云南文山示范线还原氧化锰矿、浸出尾渣为主要研究对象,考察起始酸度、浸出时间和浸出温度对锰磁铁相浸出反应的影响;在明确锰磁铁相浸出规律基础上,优化浸出工艺。结果表明,锰磁铁相在较高酸浓度梯度下,能保持较快的浸出速率;先后采用质量浓度为48.02 g/L的起始酸浸出一氧化锰相,76.44 g/L的浸出锰磁铁相的两段逆流浸出工艺,比单段浸出工艺,锰浸出率从82.31%增加到92.17%,酸耗(酸矿质量比)从0.55减少到0.50
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Last time updated on 05/12/2019