| 萃取法脱除工业级硫酸锰溶液中钙和镁离子 |
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| 引用本文： | 戴冬阳,刘志雄,孙琳,汤连东,邹晓勇.萃取法脱除工业级硫酸锰溶液中钙和镁离子[J].吉首大学学报(自然科学版),2016,37(5):55. |
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| 作者姓名： | 戴冬阳 刘志雄 孙琳 汤连东 邹晓勇 |
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| 作者单位： | (1.吉首大学物理与机电工程学院，湖南 吉首 416000；2.湖南省211计划锰锌钒工业技术协同创新中心，吉首大学，湖南 吉首 416000；3.矿物清洁生产与绿色功能材料开发湖南省重点实验室，吉首大学，湖南 吉首 416000) |
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| 基金项目： | 湖南省自然科学基金资助项目(2015JJ2115)；湖南省省教育厅科学研究重点资助项目(15A151)；湖南省省教育厅教改课题资助项目(2015228)；吉首大学教改课题重点资助项目(2015003)；吉首大学大学生研究性学习和创新性实验资助项目(JSUCX-2014-73)；吉首大学新开课程建设资助项目(2015-007) |
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| 摘 要： | 以P507和羧酸A混合物为萃取剂，从工业级硫酸锰溶液中选择性萃取脱除钙和镁离子.考察硫酸锰溶液初始pH值、混合萃取剂(x（P507）∶x（羧酸型A）=1∶1)的体积分数、皂化率和相比等因素对萃取脱除钙、镁杂质的影响.实验结果表明，在硫酸锰溶液初始pH值2.3、混合萃取剂体积分数20%、皂化率20%、相比（O/A）2∶1、萃取温度30 ℃条件下，选择性地萃取脱除钙和镁离子，锰回收率为83.9%.脱除钙和镁的硫酸锰溶液用活性吸附，浓缩结晶并干燥，获得的一水硫酸锰产品符合电池级高纯硫酸锰的要求，钙和镁质量分数分别为38.4×10-6和41.7×10-6.
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| 关 键 词： | 高纯硫酸锰 P507和羧酸型A 溶剂萃取 除杂 |
Removal of Ca and Mg Ions from Industrial Manganese Sulfate Solution by Solvent Extraction |
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| DAI Dongyang,LIU Zhixiong,SUN Lin,TANG Liandong,ZOU Xiaoyong.Removal of Ca and Mg Ions from Industrial Manganese Sulfate Solution by Solvent Extraction[J].Journal of Jishou University(Natural Science Edition),2016,37(5):55. |
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| Authors: | DAI Dongyang LIU Zhixiong SUN Lin TANG Liandong ZOU Xiaoyong |
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| Institution: | (1.College of Physics and Electromechanical Engineering，Jishou University，Jishou 416000,Hunan China;2.The Collaborative Innovation Center of Manganese-Zinc-Vanadium Industrial Technology (the 2011 Plan of Hunan Province)，Jishou University,Jishou 416000,Hunan China；3.Key laboratory of Mineral Cleaner Production and Green Functional Materials Exploitation in Hunan Province，Jishou University，Jishou 416000,Hunan China) |
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| Abstract: | Ca and Mg ions were selectively removed from industrial manganese sulfate solution with mixture extractant of P507 and carboxylic acid A.The effects of parameters including initial pH of manganese sulfate solution，concentration and saponification of mixture extractant with mol ratio 1∶1 of P507 and carboxylic acid A，and phase ratio (O/A) were determined.The results showed that Ca and Mg ions were selectively removed under the following conditions of initial pH 2.3 of manganese sulfate solution，20% volume concentration of mixture extractant，20% saponification ratio，O/A=2∶1 phase ratio at 30 ℃，and the yield of manganese reached 83.9%.By treating the solution with carbon adsorption，condensation crystallization and desiccation，manganese sulfate monohydrate with Ca content 38.4 ppm and Mg content 41.7 ppm，which meets requirement of high-purity manganese sulfate，is obtained. |
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| Keywords: | high-purity manganese (II) sulfate P507 and carboxylic acid A solvent extraction impurity removal |
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