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| Study on Removal of Magnesium from Manganese Sulfate Solution with Fluorination Precipitation |
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Received:June 27, 2012
Revised:June 29, 2012
Accepted:June 29, 2012
Published Online:November 26, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.12.001 |
| KeyWord:magnesium sulfate solution; fluorination precipitation method; magnesium removal |
| Author | Institution |
| ZHANG Peng-ru |
中南大学化学化工学院 |
| WANG Wen-lei |
中南大学化学化工学院 |
| YANG Chao |
中南大学化学化工学院 |
| ZENG De-wen |
中南大学化学化工学院 |
| YIN Xia |
中南大学化学化工学院 |
| CHEN Qi-yuan |
中南大学化学化工学院 |
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| Abstract: |
| Fluorination with NH4F as a precipitant and MgF2 crystal as a nucleating agent has achieved a good result on removal of magnesium impurity from manganese sulfate solutions. The effects of temperature, reaction time and pH, et al on magnesium removal rate in fluorination were investigated. The results show that increasing temperature and pH value of solutions is beneficial to improve the magnesium removal rate. The situation is complex in reaction time. The magnesium removal rate improves with the increase of reaction time within 1 hour and remains essentially constant beyond 1 hour. |
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