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| Response Surface Optimization of Process Parameters for Recovery of Selenium from Electrolytic Manganese Anolyte |
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Received:August 17, 2019
Revised:August 21, 2019
Accepted:August 23, 2019
Published Online:December 18, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2020.01.011 |
| KeyWord:electrolytic manganese anolyte; iron-carbon micro-electrolysis; selenium; recovery; response surface method |
| Author | Institution |
| CHEN Junfei |
广西大学化学化工学院 |
| XIN Yu |
广西大学化学化工学院 |
| HUANG Liyan |
广西大学化学化工学院 |
| QIN Zhaocai |
广西大学化学化工学院 |
| SU Haifeng |
广西大学化学化工学院 |
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| Abstract: |
| Response surface methodology was applied to optimize extracting process parameters to recover selenium from electrolytic manganese anolyte by iron-carbon micro-electrolysis technology. Stirring speed, reaction time, and ratio of iron/carbon were selected as three independent variables on selenium extraction rate as response. The results show that effect sequence of factors on selenium extraction rate is stirring rate, iron/carbon ratio, and reaction time. Interaction between two of three factors was weak. The optimum extracting process parameters include stirring speed of 199 r/min, reaction time of 192 min, and ratio of iron/carbon of 1.94 g/g. Under these conditions, selenium extraction rate is 96.34%, which is not significantly different from value of 96.52% predicted by the model. |
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