Development of a Sustainable Process for Complex Sulfide Ores Containing Anglesite: Effect of Anglesite on Sphalerite Floatability, Enhanced Depression of Sphalerite by Extracting Anglesite, and Recovery of Extracted Pb<sup>2+</sup> as Zero-Valent Pb by Cementation Using Zero-Valent Fe
The presence of anglesite (PbSO<sub>4</sub>) in complex sulfide ores negatively affects the separation of Cu-Pb sulfides and sphalerite (ZnS) due to lead activation, and PbSO<sub>4</sub> rejected to tailings dams contaminates the surrounding environment with lead. To address...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/12/6/723 |
| _version_ | 1797484143112617984 |
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| author | Kosei Aikawa Mayumi Ito Atsuhiro Kusano Sanghee Jeon Ilhwan Park Naoki Hiroyoshi |
| author_facet | Kosei Aikawa Mayumi Ito Atsuhiro Kusano Sanghee Jeon Ilhwan Park Naoki Hiroyoshi |
| author_sort | Kosei Aikawa |
| collection | DOAJ |
| description | The presence of anglesite (PbSO<sub>4</sub>) in complex sulfide ores negatively affects the separation of Cu-Pb sulfides and sphalerite (ZnS) due to lead activation, and PbSO<sub>4</sub> rejected to tailings dams contaminates the surrounding environment with lead. To address these problems, this study investigated the application of ethylene diamine tetra acetic acid (EDTA) pretreatment extracting PbSO<sub>4</sub> to ZnS flotation and the recovery of the extracted Pb<sup>2+</sup> as zero-valent Pb by cementation using zero-valent iron (ZVI). The application of EDTA pretreatment could extract ~99.8% of PbSO<sub>4</sub>, thus depressing ZnS floatability from 82% to 30%. In addition, cementation using ZVI could recover ~99.7% of Pb<sup>2+</sup> from the leachate of EDTA pretreatment. |
| first_indexed | 2024-03-09T22:58:15Z |
| format | Article |
| id | doaj.art-88d2a30ed5c344b5914b8e88027b8f04 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-09T22:58:15Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-88d2a30ed5c344b5914b8e88027b8f042023-11-23T18:06:46ZengMDPI AGMinerals2075-163X2022-06-0112672310.3390/min12060723Development of a Sustainable Process for Complex Sulfide Ores Containing Anglesite: Effect of Anglesite on Sphalerite Floatability, Enhanced Depression of Sphalerite by Extracting Anglesite, and Recovery of Extracted Pb<sup>2+</sup> as Zero-Valent Pb by Cementation Using Zero-Valent FeKosei Aikawa0Mayumi Ito1Atsuhiro Kusano2Sanghee Jeon3Ilhwan Park4Naoki Hiroyoshi5Division of Sustainable Resources Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, JapanDivision of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, JapanDivision of Sustainable Resources Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, JapanDivision of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, JapanDivision of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, JapanDivision of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, JapanThe presence of anglesite (PbSO<sub>4</sub>) in complex sulfide ores negatively affects the separation of Cu-Pb sulfides and sphalerite (ZnS) due to lead activation, and PbSO<sub>4</sub> rejected to tailings dams contaminates the surrounding environment with lead. To address these problems, this study investigated the application of ethylene diamine tetra acetic acid (EDTA) pretreatment extracting PbSO<sub>4</sub> to ZnS flotation and the recovery of the extracted Pb<sup>2+</sup> as zero-valent Pb by cementation using zero-valent iron (ZVI). The application of EDTA pretreatment could extract ~99.8% of PbSO<sub>4</sub>, thus depressing ZnS floatability from 82% to 30%. In addition, cementation using ZVI could recover ~99.7% of Pb<sup>2+</sup> from the leachate of EDTA pretreatment.https://www.mdpi.com/2075-163X/12/6/723flotationcomplex sulfide oressphaleriteanglesiteextractioncementation |
| spellingShingle | Kosei Aikawa Mayumi Ito Atsuhiro Kusano Sanghee Jeon Ilhwan Park Naoki Hiroyoshi Development of a Sustainable Process for Complex Sulfide Ores Containing Anglesite: Effect of Anglesite on Sphalerite Floatability, Enhanced Depression of Sphalerite by Extracting Anglesite, and Recovery of Extracted Pb<sup>2+</sup> as Zero-Valent Pb by Cementation Using Zero-Valent Fe Minerals flotation complex sulfide ores sphalerite anglesite extraction cementation |
| title | Development of a Sustainable Process for Complex Sulfide Ores Containing Anglesite: Effect of Anglesite on Sphalerite Floatability, Enhanced Depression of Sphalerite by Extracting Anglesite, and Recovery of Extracted Pb<sup>2+</sup> as Zero-Valent Pb by Cementation Using Zero-Valent Fe |
| title_full | Development of a Sustainable Process for Complex Sulfide Ores Containing Anglesite: Effect of Anglesite on Sphalerite Floatability, Enhanced Depression of Sphalerite by Extracting Anglesite, and Recovery of Extracted Pb<sup>2+</sup> as Zero-Valent Pb by Cementation Using Zero-Valent Fe |
| title_fullStr | Development of a Sustainable Process for Complex Sulfide Ores Containing Anglesite: Effect of Anglesite on Sphalerite Floatability, Enhanced Depression of Sphalerite by Extracting Anglesite, and Recovery of Extracted Pb<sup>2+</sup> as Zero-Valent Pb by Cementation Using Zero-Valent Fe |
| title_full_unstemmed | Development of a Sustainable Process for Complex Sulfide Ores Containing Anglesite: Effect of Anglesite on Sphalerite Floatability, Enhanced Depression of Sphalerite by Extracting Anglesite, and Recovery of Extracted Pb<sup>2+</sup> as Zero-Valent Pb by Cementation Using Zero-Valent Fe |
| title_short | Development of a Sustainable Process for Complex Sulfide Ores Containing Anglesite: Effect of Anglesite on Sphalerite Floatability, Enhanced Depression of Sphalerite by Extracting Anglesite, and Recovery of Extracted Pb<sup>2+</sup> as Zero-Valent Pb by Cementation Using Zero-Valent Fe |
| title_sort | development of a sustainable process for complex sulfide ores containing anglesite effect of anglesite on sphalerite floatability enhanced depression of sphalerite by extracting anglesite and recovery of extracted pb sup 2 sup as zero valent pb by cementation using zero valent fe |
| topic | flotation complex sulfide ores sphalerite anglesite extraction cementation |
| url | https://www.mdpi.com/2075-163X/12/6/723 |
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