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| Study on Manganese Enrichment from Electrolytic Manganese Residue by Electrokinetic Technology |
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Received:November 22, 2016
Revised:November 29, 2016
Accepted:November 30, 2016
Published Online:February 21, 2017
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| DOI：doi：10.3969/j.issn.1007-7545.2017.03.002 |
| KeyWord:electrolytic manganese residue; electrokinetic technology; enrichment; manganese carbonate |
| Author | Institution |
| Chen Hongliang |
安顺学院 化学化工学院 |
| Li Qingrong |
安顺学院 化学化工学院 |
| Shu Jiancheng |
重庆大学 化学化工学院 |
| Fang Yu |
安顺学院 化学化工学院 |
| Zhu Xitie |
安顺学院 化学化工学院 |
| Li Lin |
安顺学院 化学化工学院 |
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| Abstract: |
| Laws of migration, transform, and enrichment of soluble manganese from electrolytic manganese residue (EMR) were studied by electrokinetic technology. The results show that enrichment of soluble manganese can be carried out by both direct electrokinetic method (DEM) and electrokinetic method with CO2 (EMC) with enrichment amount of 3.8% and 4.3% respectively under reaction time of 48 h. Enrichment of manganese rises with increase of reaction time at cathode space. Manganese content at anode space drops with increase of reaction time. Manganese content drops from cathode space to anode space. Reaction mechanism of DEM is that the enriched Mn2 at cathode space reacts with OH- to form insoluble substances such as Mn(OH)2, CaMn(OH)SiO4, et al. Reaction mechanism of EMC is that CO2 at cathode space reacts with OH- to form CO32- and CO32- which further reacting with migrated Mn2 to form MnCO3. |
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