硫酸锰溶液提纯的萃取工艺

Chen Zhe Li, Hongyan Xie, Huifen Jin
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引用次数: 0

摘要

硫酸锰是一种重要的碱性锰盐;世界上近80%的锰产品是用硫酸锰或硫酸锰溶液生产的。此外,硫酸锰在工业和农业上有许多应用;因此,硫酸锰溶液除杂技术具有重要意义。本研究的目的是去除硫酸锰溶液中的杂质——利用复杂的低品位锰矿石和加压酸浸后的富锰烟气得到硫酸锰溶液,然后通过氧化中和除铁提纯;最后,用萃取-反萃取法对纯化液进行处理。考察了不同提取参数对锰提取率的影响,以及不同反提取参数对反提取液中锰离子浓度和锰反提取速率的影响,并对提取-反提取工艺进行了研究。结果表明,在最优条件下,锰的提取率可达95%,反提取率可达96.9%。
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Extraction Technology for Manganese Sulfate Solution Purification
Manganese sulfate is an important base manganese salt; nearly 80% of the world's manganese products are produced using manganese sulfate or manganese sulfate solution. Furthermore, manganese sulfate has many applications in industry and agriculture; thus, manganese sulfate solution impurity removal technology is important. This study aims to remove impurities from manganese sulfate solution-using complex low-grade manganese ore and manganese-rich fumes after pressure acid leaching to obtain a manganese sulfate solution, which is then purified through iron removal by oxidation neutralization; finally, the purified liquid is treated using extraction-back-extraction. We investigated the effects of various extraction parameters on the extraction rate of manganese, as well as the effects of various back-extraction parameters on the manganese back-extraction rate and manganese ion concentration in the back-extraction solution, and studied the extraction-back-extraction process. We found that the extraction and back-extraction rates of manganese could reach 95% and 96.9%, respectively, under optimal conditions..
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